{
  "x402Version": 2,
  "id": 34973,
  "slug": "34973",
  "resource": "https://api.mekler.ai/v1/research/citations/check-source-overlap",
  "description": "Check source overlap before counting corroboration. Supply 2-10 URLs, optional article HTML and citation chains. Returns duplicate URLs, shared links and supplied-source groups with locations. No fetching, truth or independence verdict. Schemas: /openapi.json.",
  "type": "http",
  "serviceName": "Mekler AI",
  "accepts": [
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 60
    },
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 60
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "properties": {
          "citation_link_candidates": {
            "items": {
              "properties": {
                "from_id": {
                  "type": "string"
                },
                "locations": {
                  "items": {
                    "properties": {
                      "anchor_text": {
                        "type": "string"
                      },
                      "column": {
                        "type": "integer"
                      },
                      "line": {
                        "type": "integer"
                      },
                      "target_url": {
                        "type": "string"
                      }
                    },
                    "required": [
                      "target_url",
                      "line",
                      "column",
                      "anchor_text"
                    ],
                    "type": "object"
                  },
                  "type": "array"
                },
                "status": {
                  "const": "citation_link_candidate"
                },
                "to_id": {
                  "type": "string"
                }
              },
              "required": [
                "from_id",
                "to_id",
                "locations",
                "status"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "coverage": {
            "properties": {
              "citation_count": {
                "type": "integer"
              },
              "html_document_count": {
                "type": "integer"
              }
            },
            "required": [
              "citation_count",
              "html_document_count"
            ],
            "type": "object"
          },
          "independence": {
            "const": "unknown"
          },
          "limitations": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "schema_version": {
            "const": "1"
          },
          "service": {
            "const": "citation-overlap-checker"
          },
          "shared_link_candidates": {
            "items": {
              "properties": {
                "documents": {
                  "items": {
                    "properties": {
                      "id": {
                        "type": "string"
                      },
                      "locations": {
                        "items": {
                          "properties": {
                            "anchor_text": {
                              "type": "string"
                            },
                            "column": {
                              "type": "integer"
                            },
                            "line": {
                              "type": "integer"
                            },
                            "target_url": {
                              "type": "string"
                            }
                          },
                          "required": [
                            "target_url",
                            "line",
                            "column",
                            "anchor_text"
                          ],
                          "type": "object"
                        },
                        "type": "array"
                      }
                    },
                    "required": [
                      "id",
                      "locations"
                    ],
                    "type": "object"
                  },
                  "type": "array"
                },
                "linked_url": {
                  "type": "string"
                },
                "status": {
                  "const": "shared_link_candidate"
                }
              },
              "required": [
                "linked_url",
                "documents",
                "status"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "shared_origin_groups": {
            "items": {
              "properties": {
                "basis": {
                  "const": "supplied_lineage_or_identical_url"
                },
                "citation_ids": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "origin_url": {
                  "type": "string"
                }
              },
              "required": [
                "origin_url",
                "citation_ids",
                "basis"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "supplied_lineage_links": {
            "items": {
              "properties": {
                "evidence_locator": {
                  "type": "string"
                },
                "from_id": {
                  "type": "string"
                },
                "to_id": {
                  "type": "string"
                }
              },
              "required": [
                "from_id",
                "to_id",
                "evidence_locator"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "unresolved_citation_ids": {
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "service",
          "schema_version",
          "shared_origin_groups",
          "supplied_lineage_links",
          "shared_link_candidates",
          "citation_link_candidates",
          "unresolved_citation_ids",
          "independence",
          "coverage",
          "limitations"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "citations": [
              {
                "html": "<a href=\"https://b.test\">Source</a>",
                "id": "a",
                "url": "https://a.test"
              },
              {
                "id": "b",
                "url": "https://b.test"
              }
            ],
            "claim": "Reported benefit"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "citation_link_candidates": [
              {
                "from_id": "a",
                "locations": [
                  {
                    "anchor_text": "Source",
                    "column": 0,
                    "line": 1,
                    "target_url": "https://b.test/"
                  }
                ],
                "status": "citation_link_candidate",
                "to_id": "b"
              }
            ],
            "coverage": {
              "citation_count": 2,
              "html_document_count": 1
            },
            "independence": "unknown",
            "limitations": [
              "Citation overlap is a candidate, not proof of dependence."
            ],
            "schema_version": "1",
            "service": "citation-overlap-checker",
            "shared_link_candidates": [],
            "shared_origin_groups": [],
            "supplied_lineage_links": [],
            "unresolved_citation_ids": [
              "a",
              "b"
            ]
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": false,
                "properties": {
                  "citations": {
                    "items": {
                      "additionalProperties": false,
                      "dependentRequired": {
                        "derives_from": [
                          "evidence_locator"
                        ],
                        "evidence_locator": [
                          "derives_from"
                        ]
                      },
                      "properties": {
                        "derives_from": {
                          "maxLength": 64,
                          "type": "string"
                        },
                        "evidence_locator": {
                          "maxLength": 256,
                          "minLength": 1,
                          "type": "string"
                        },
                        "html": {
                          "maxLength": 131072,
                          "type": "string"
                        },
                        "id": {
                          "pattern": "^[A-Za-z0-9_.-]{1,64}$",
                          "type": "string"
                        },
                        "url": {
                          "format": "uri",
                          "maxLength": 2048,
                          "pattern": "^https://",
                          "type": "string"
                        }
                      },
                      "required": [
                        "id",
                        "url"
                      ],
                      "type": "object"
                    },
                    "maxItems": 10,
                    "minItems": 2,
                    "type": "array"
                  },
                  "claim": {
                    "maxLength": 4000,
                    "minLength": 1,
                    "type": "string"
                  }
                },
                "required": [
                  "claim",
                  "citations"
                ],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "citation_link_candidates": {
                    "items": {
                      "properties": {
                        "from_id": {
                          "type": "string"
                        },
                        "locations": {
                          "items": {
                            "properties": {
                              "anchor_text": {
                                "type": "string"
                              },
                              "column": {
                                "type": "integer"
                              },
                              "line": {
                                "type": "integer"
                              },
                              "target_url": {
                                "type": "string"
                              }
                            },
                            "required": [
                              "target_url",
                              "line",
                              "column",
                              "anchor_text"
                            ],
                            "type": "object"
                          },
                          "type": "array"
                        },
                        "status": {
                          "const": "citation_link_candidate"
                        },
                        "to_id": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "from_id",
                        "to_id",
                        "locations",
                        "status"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "coverage": {
                    "properties": {
                      "citation_count": {
                        "type": "integer"
                      },
                      "html_document_count": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "citation_count",
                      "html_document_count"
                    ],
                    "type": "object"
                  },
                  "independence": {
                    "const": "unknown"
                  },
                  "limitations": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "schema_version": {
                    "const": "1"
                  },
                  "service": {
                    "const": "citation-overlap-checker"
                  },
                  "shared_link_candidates": {
                    "items": {
                      "properties": {
                        "documents": {
                          "items": {
                            "properties": {
                              "id": {
                                "type": "string"
                              },
                              "locations": {
                                "items": {
                                  "properties": {
                                    "anchor_text": {
                                      "type": "string"
                                    },
                                    "column": {
                                      "type": "integer"
                                    },
                                    "line": {
                                      "type": "integer"
                                    },
                                    "target_url": {
                                      "type": "string"
                                    }
                                  },
                                  "required": [
                                    "target_url",
                                    "line",
                                    "column",
                                    "anchor_text"
                                  ],
                                  "type": "object"
                                },
                                "type": "array"
                              }
                            },
                            "required": [
                              "id",
                              "locations"
                            ],
                            "type": "object"
                          },
                          "type": "array"
                        },
                        "linked_url": {
                          "type": "string"
                        },
                        "status": {
                          "const": "shared_link_candidate"
                        }
                      },
                      "required": [
                        "linked_url",
                        "documents",
                        "status"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "shared_origin_groups": {
                    "items": {
                      "properties": {
                        "basis": {
                          "const": "supplied_lineage_or_identical_url"
                        },
                        "citation_ids": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "origin_url": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "origin_url",
                        "citation_ids",
                        "basis"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "supplied_lineage_links": {
                    "items": {
                      "properties": {
                        "evidence_locator": {
                          "type": "string"
                        },
                        "from_id": {
                          "type": "string"
                        },
                        "to_id": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "from_id",
                        "to_id",
                        "evidence_locator"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "unresolved_citation_ids": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "service",
                  "schema_version",
                  "shared_origin_groups",
                  "supplied_lineage_links",
                  "shared_link_candidates",
                  "citation_link_candidates",
                  "unresolved_citation_ids",
                  "independence",
                  "coverage",
                  "limitations"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "research",
    "citations",
    "source-overlap",
    "due-diligence",
    "bazaar"
  ],
  "sourceHost": "api.mekler.ai",
  "lastUpdated": "2026-10-08T16:25:45.799Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-10-08T16:25:45.587Z"
  },
  "metadata": {
    "serviceName": "Mekler AI",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "citations": [
                {
                  "html": "<a href=\"https://b.test\">Source</a>",
                  "id": "a",
                  "url": "https://a.test"
                },
                {
                  "id": "b",
                  "url": "https://b.test"
                }
              ],
              "claim": "Reported benefit"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "citation_link_candidates": [
                {
                  "from_id": "a",
                  "locations": [
                    {
                      "anchor_text": "Source",
                      "column": 0,
                      "line": 1,
                      "target_url": "https://b.test/"
                    }
                  ],
                  "status": "citation_link_candidate",
                  "to_id": "b"
                }
              ],
              "coverage": {
                "citation_count": 2,
                "html_document_count": 1
              },
              "independence": "unknown",
              "limitations": [
                "Citation overlap is a candidate, not proof of dependence."
              ],
              "schema_version": "1",
              "service": "citation-overlap-checker",
              "shared_link_candidates": [],
              "shared_origin_groups": [],
              "supplied_lineage_links": [],
              "unresolved_citation_ids": [
                "a",
                "b"
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "citations": {
                      "items": {
                        "additionalProperties": false,
                        "dependentRequired": {
                          "derives_from": [
                            "evidence_locator"
                          ],
                          "evidence_locator": [
                            "derives_from"
                          ]
                        },
                        "properties": {
                          "derives_from": {
                            "maxLength": 64,
                            "type": "string"
                          },
                          "evidence_locator": {
                            "maxLength": 256,
                            "minLength": 1,
                            "type": "string"
                          },
                          "html": {
                            "maxLength": 131072,
                            "type": "string"
                          },
                          "id": {
                            "pattern": "^[A-Za-z0-9_.-]{1,64}$",
                            "type": "string"
                          },
                          "url": {
                            "format": "uri",
                            "maxLength": 2048,
                            "pattern": "^https://",
                            "type": "string"
                          }
                        },
                        "required": [
                          "id",
                          "url"
                        ],
                        "type": "object"
                      },
                      "maxItems": 10,
                      "minItems": 2,
                      "type": "array"
                    },
                    "claim": {
                      "maxLength": 4000,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "claim",
                    "citations"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "citation_link_candidates": {
                      "items": {
                        "properties": {
                          "from_id": {
                            "type": "string"
                          },
                          "locations": {
                            "items": {
                              "properties": {
                                "anchor_text": {
                                  "type": "string"
                                },
                                "column": {
                                  "type": "integer"
                                },
                                "line": {
                                  "type": "integer"
                                },
                                "target_url": {
                                  "type": "string"
                                }
                              },
                              "required": [
                                "target_url",
                                "line",
                                "column",
                                "anchor_text"
                              ],
                              "type": "object"
                            },
                            "type": "array"
                          },
                          "status": {
                            "const": "citation_link_candidate"
                          },
                          "to_id": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "from_id",
                          "to_id",
                          "locations",
                          "status"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "coverage": {
                      "properties": {
                        "citation_count": {
                          "type": "integer"
                        },
                        "html_document_count": {
                          "type": "integer"
                        }
                      },
                      "required": [
                        "citation_count",
                        "html_document_count"
                      ],
                      "type": "object"
                    },
                    "independence": {
                      "const": "unknown"
                    },
                    "limitations": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "schema_version": {
                      "const": "1"
                    },
                    "service": {
                      "const": "citation-overlap-checker"
                    },
                    "shared_link_candidates": {
                      "items": {
                        "properties": {
                          "documents": {
                            "items": {
                              "properties": {
                                "id": {
                                  "type": "string"
                                },
                                "locations": {
                                  "items": {
                                    "properties": {
                                      "anchor_text": {
                                        "type": "string"
                                      },
                                      "column": {
                                        "type": "integer"
                                      },
                                      "line": {
                                        "type": "integer"
                                      },
                                      "target_url": {
                                        "type": "string"
                                      }
                                    },
                                    "required": [
                                      "target_url",
                                      "line",
                                      "column",
                                      "anchor_text"
                                    ],
                                    "type": "object"
                                  },
                                  "type": "array"
                                }
                              },
                              "required": [
                                "id",
                                "locations"
                              ],
                              "type": "object"
                            },
                            "type": "array"
                          },
                          "linked_url": {
                            "type": "string"
                          },
                          "status": {
                            "const": "shared_link_candidate"
                          }
                        },
                        "required": [
                          "linked_url",
                          "documents",
                          "status"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "shared_origin_groups": {
                      "items": {
                        "properties": {
                          "basis": {
                            "const": "supplied_lineage_or_identical_url"
                          },
                          "citation_ids": {
                            "items": {
                              "type": "string"
                            },
                            "type": "array"
                          },
                          "origin_url": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "origin_url",
                          "citation_ids",
                          "basis"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "supplied_lineage_links": {
                      "items": {
                        "properties": {
                          "evidence_locator": {
                            "type": "string"
                          },
                          "from_id": {
                            "type": "string"
                          },
                          "to_id": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "from_id",
                          "to_id",
                          "evidence_locator"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "unresolved_citation_ids": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "service",
                    "schema_version",
                    "shared_origin_groups",
                    "supplied_lineage_links",
                    "shared_link_candidates",
                    "citation_link_candidates",
                    "unresolved_citation_ids",
                    "independence",
                    "coverage",
                    "limitations"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "api.mekler.ai",
    "manifest_name": "api.mekler.ai",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-13T15:56:53.641Z"
  },
  "exampleResponse": {
    "example": {
      "citation_link_candidates": [
        {
          "from_id": "string",
          "locations": [
            {
              "anchor_text": "string",
              "column": 0,
              "line": 0,
              "target_url": "string"
            }
          ],
          "status": null,
          "to_id": "string"
        }
      ],
      "coverage": {
        "citation_count": 0,
        "html_document_count": 0
      },
      "independence": null,
      "limitations": [
        "string"
      ],
      "schema_version": null,
      "service": null,
      "shared_link_candidates": [
        {
          "documents": [
            {
              "id": "string",
              "locations": [
                "value"
              ]
            }
          ],
          "linked_url": "string",
          "status": null
        }
      ],
      "shared_origin_groups": [
        {
          "basis": null,
          "citation_ids": [
            "string"
          ],
          "origin_url": "string"
        }
      ],
      "supplied_lineage_links": [
        {
          "evidence_locator": "string",
          "from_id": "string",
          "to_id": "string"
        }
      ],
      "unresolved_citation_ids": [
        "string"
      ]
    },
    "type": "string"
  }
}