{
  "x402Version": 2,
  "id": 36453,
  "slug": "36453",
  "resource": "https://x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app/api/catalog",
  "description": "Live snapshot of the most liquid carbon credits retirable on Base: the top 3 Klima Protocol carbon classes and the top 3 Carbonmark marketplace listings, with USDC-per-tonne prices and tonnes available. Additionally, the additional endpoints to quote and retire carbon are included; query those endpoints for further discovery, quotes, and retirements. Query /.well-known, /openapi, and /discover to get started.",
  "type": "http",
  "serviceName": "Klima Retirement Aggregator",
  "resourceType": "Market Data",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xf624f9Fe1D3165c5Ca32c7Fbdbf82f4a5b1D2d0e",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "1000",
      "amountUsd": 0.001,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "additionalProperties": false,
        "properties": {
          "asOf": {
            "type": "string"
          },
          "classes": {
            "items": {
              "additionalProperties": false,
              "properties": {
                "carbonClassId": {
                  "type": "string"
                },
                "category": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "country": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "creditCount": {
                  "type": "number"
                },
                "liquidityTonnes": {
                  "type": "string"
                },
                "name": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "priceBasis": {
                  "const": "indicative",
                  "type": "string"
                },
                "priceUsdcPerTonne": {
                  "type": "string"
                },
                "priceUsdcPerTonneFormatted": {
                  "type": "string"
                }
              },
              "required": [
                "carbonClassId",
                "name",
                "category",
                "country",
                "priceUsdcPerTonne",
                "priceUsdcPerTonneFormatted",
                "priceBasis",
                "liquidityTonnes",
                "creditCount"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "endpoints": {
            "additionalProperties": false,
            "properties": {
              "actionsRetire": {
                "type": "string"
              },
              "certificate": {
                "type": "string"
              },
              "discover": {
                "type": "string"
              },
              "openapi": {
                "type": "string"
              },
              "prepareAuth": {
                "type": "string"
              },
              "prepareRetire": {
                "type": "string"
              },
              "quote": {
                "type": "string"
              }
            },
            "required": [
              "discover",
              "quote",
              "prepareRetire",
              "prepareAuth",
              "actionsRetire",
              "certificate",
              "openapi"
            ],
            "type": "object"
          },
          "listings": {
            "items": {
              "additionalProperties": false,
              "properties": {
                "category": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "country": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "creditId": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "expiresAt": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "leftToSellTonnes": {
                  "type": "string"
                },
                "listingId": {
                  "type": "string"
                },
                "minFillTonnes": {
                  "type": "string"
                },
                "priceBasis": {
                  "const": "firm",
                  "type": "string"
                },
                "priceUsdcPerTonne": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "priceUsdcPerTonneFormatted": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "projectName": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "registry": {
                  "anyOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "null"
                    }
                  ]
                },
                "vintage": {
                  "anyOf": [
                    {
                      "type": "number"
                    },
                    {
                      "type": "null"
                    }
                  ]
                }
              },
              "required": [
                "listingId",
                "projectName",
                "creditId",
                "registry",
                "vintage",
                "country",
                "category",
                "priceUsdcPerTonne",
                "priceUsdcPerTonneFormatted",
                "priceBasis",
                "leftToSellTonnes",
                "minFillTonnes",
                "expiresAt"
              ],
              "type": "object"
            },
            "type": "array"
          },
          "note": {
            "type": "string"
          }
        },
        "required": [
          "asOf",
          "classes",
          "listings",
          "endpoints",
          "note"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {},
          "type": "http"
        },
        "output": {
          "example": {
            "asOf": "2026-09-15T00:00:00.000Z",
            "classes": [],
            "endpoints": {
              "actionsRetire": "https://x402.klimalabs.com/api/actions/retire",
              "certificate": "https://x402.klimalabs.com/api/certificate",
              "discover": "https://x402.klimalabs.com/api/discover",
              "openapi": "https://x402.klimalabs.com/openapi.json",
              "prepareAuth": "https://x402.klimalabs.com/api/prepare-auth",
              "prepareRetire": "https://x402.klimalabs.com/api/prepare/retire",
              "quote": "https://x402.klimalabs.com/api/quote"
            },
            "listings": [],
            "note": "Prices are USDC per tonne before the on-chain protocol fee. Class prices are indicative live quotes; listing prices are the seller's firm ask. To retire: GET quote, then either GET prepare/retire and send the transactions from your own wallet, or GET prepare-auth, sign its typedData and POST actions/retire. None of those charge an API fee. GET discover returns the full catalog for free."
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "additionalProperties": false,
                "properties": {},
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "additionalProperties": false,
                "properties": {
                  "asOf": {
                    "type": "string"
                  },
                  "classes": {
                    "items": {
                      "additionalProperties": false,
                      "properties": {
                        "carbonClassId": {
                          "type": "string"
                        },
                        "category": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "country": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "creditCount": {
                          "type": "number"
                        },
                        "liquidityTonnes": {
                          "type": "string"
                        },
                        "name": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "priceBasis": {
                          "const": "indicative",
                          "type": "string"
                        },
                        "priceUsdcPerTonne": {
                          "type": "string"
                        },
                        "priceUsdcPerTonneFormatted": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "carbonClassId",
                        "name",
                        "category",
                        "country",
                        "priceUsdcPerTonne",
                        "priceUsdcPerTonneFormatted",
                        "priceBasis",
                        "liquidityTonnes",
                        "creditCount"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "endpoints": {
                    "additionalProperties": false,
                    "properties": {
                      "actionsRetire": {
                        "type": "string"
                      },
                      "certificate": {
                        "type": "string"
                      },
                      "discover": {
                        "type": "string"
                      },
                      "openapi": {
                        "type": "string"
                      },
                      "prepareAuth": {
                        "type": "string"
                      },
                      "prepareRetire": {
                        "type": "string"
                      },
                      "quote": {
                        "type": "string"
                      }
                    },
                    "required": [
                      "discover",
                      "quote",
                      "prepareRetire",
                      "prepareAuth",
                      "actionsRetire",
                      "certificate",
                      "openapi"
                    ],
                    "type": "object"
                  },
                  "listings": {
                    "items": {
                      "additionalProperties": false,
                      "properties": {
                        "category": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "country": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "creditId": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "expiresAt": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "leftToSellTonnes": {
                          "type": "string"
                        },
                        "listingId": {
                          "type": "string"
                        },
                        "minFillTonnes": {
                          "type": "string"
                        },
                        "priceBasis": {
                          "const": "firm",
                          "type": "string"
                        },
                        "priceUsdcPerTonne": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "priceUsdcPerTonneFormatted": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "projectName": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "registry": {
                          "anyOf": [
                            {
                              "type": "string"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        },
                        "vintage": {
                          "anyOf": [
                            {
                              "type": "number"
                            },
                            {
                              "type": "null"
                            }
                          ]
                        }
                      },
                      "required": [
                        "listingId",
                        "projectName",
                        "creditId",
                        "registry",
                        "vintage",
                        "country",
                        "category",
                        "priceUsdcPerTonne",
                        "priceUsdcPerTonneFormatted",
                        "priceBasis",
                        "leftToSellTonnes",
                        "minFillTonnes",
                        "expiresAt"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "note": {
                    "type": "string"
                  }
                },
                "required": [
                  "asOf",
                  "classes",
                  "listings",
                  "endpoints",
                  "note"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "carbon",
    "climate",
    "base",
    "bazaar"
  ],
  "sourceHost": "x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app",
  "lastUpdated": "2026-10-10T12:21:32.551Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-10-10T12:21:32.376Z"
  },
  "metadata": {
    "serviceName": "Klima Retirement Aggregator",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-09-15T00:00:00.000Z",
              "classes": [],
              "endpoints": {
                "actionsRetire": "https://x402.klimalabs.com/api/actions/retire",
                "certificate": "https://x402.klimalabs.com/api/certificate",
                "discover": "https://x402.klimalabs.com/api/discover",
                "openapi": "https://x402.klimalabs.com/openapi.json",
                "prepareAuth": "https://x402.klimalabs.com/api/prepare-auth",
                "prepareRetire": "https://x402.klimalabs.com/api/prepare/retire",
                "quote": "https://x402.klimalabs.com/api/quote"
              },
              "listings": [],
              "note": "Prices are USDC per tonne before the on-chain protocol fee. Class prices are indicative live quotes; listing prices are the seller's firm ask. To retire: GET quote, then either GET prepare/retire and send the transactions from your own wallet, or GET prepare-auth, sign its typedData and POST actions/retire. None of those charge an API fee. GET discover returns the full catalog for free."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "properties": {
                    "asOf": {
                      "type": "string"
                    },
                    "classes": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "carbonClassId": {
                            "type": "string"
                          },
                          "category": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "country": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "creditCount": {
                            "type": "number"
                          },
                          "liquidityTonnes": {
                            "type": "string"
                          },
                          "name": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "priceBasis": {
                            "const": "indicative",
                            "type": "string"
                          },
                          "priceUsdcPerTonne": {
                            "type": "string"
                          },
                          "priceUsdcPerTonneFormatted": {
                            "type": "string"
                          }
                        },
                        "required": [
                          "carbonClassId",
                          "name",
                          "category",
                          "country",
                          "priceUsdcPerTonne",
                          "priceUsdcPerTonneFormatted",
                          "priceBasis",
                          "liquidityTonnes",
                          "creditCount"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "endpoints": {
                      "additionalProperties": false,
                      "properties": {
                        "actionsRetire": {
                          "type": "string"
                        },
                        "certificate": {
                          "type": "string"
                        },
                        "discover": {
                          "type": "string"
                        },
                        "openapi": {
                          "type": "string"
                        },
                        "prepareAuth": {
                          "type": "string"
                        },
                        "prepareRetire": {
                          "type": "string"
                        },
                        "quote": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "discover",
                        "quote",
                        "prepareRetire",
                        "prepareAuth",
                        "actionsRetire",
                        "certificate",
                        "openapi"
                      ],
                      "type": "object"
                    },
                    "listings": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "category": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "country": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "creditId": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "expiresAt": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "leftToSellTonnes": {
                            "type": "string"
                          },
                          "listingId": {
                            "type": "string"
                          },
                          "minFillTonnes": {
                            "type": "string"
                          },
                          "priceBasis": {
                            "const": "firm",
                            "type": "string"
                          },
                          "priceUsdcPerTonne": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "priceUsdcPerTonneFormatted": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "projectName": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "registry": {
                            "anyOf": [
                              {
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "vintage": {
                            "anyOf": [
                              {
                                "type": "number"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          }
                        },
                        "required": [
                          "listingId",
                          "projectName",
                          "creditId",
                          "registry",
                          "vintage",
                          "country",
                          "category",
                          "priceUsdcPerTonne",
                          "priceUsdcPerTonneFormatted",
                          "priceBasis",
                          "leftToSellTonnes",
                          "minFillTonnes",
                          "expiresAt"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "note": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "asOf",
                    "classes",
                    "listings",
                    "endpoints",
                    "note"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app",
    "manifest_name": "x402-retire-git-feat-paid-indexing-gate-and-openapi-carbonmark.vercel.app",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "asOf": "2026-09-15T00:00:00.000Z",
    "classes": [],
    "endpoints": {
      "actionsRetire": "https://x402.klimalabs.com/api/actions/retire",
      "certificate": "https://x402.klimalabs.com/api/certificate",
      "discover": "https://x402.klimalabs.com/api/discover",
      "openapi": "https://x402.klimalabs.com/openapi.json",
      "prepareAuth": "https://x402.klimalabs.com/api/prepare-auth",
      "prepareRetire": "https://x402.klimalabs.com/api/prepare/retire",
      "quote": "https://x402.klimalabs.com/api/quote"
    },
    "listings": [],
    "note": "Prices are USDC per tonne before the on-chain protocol fee. Class prices are indicative live quotes; listing prices are the seller's firm ask. To retire: GET quote, then either GET prepare/retire and send the transactions from your own wallet, or GET prepare-auth, sign its typedData and POST actions/retire. None of those charge an API fee. GET discover returns the full catalog for free."
  }
}