{
  "x402Version": 2,
  "id": 35087,
  "slug": "35087",
  "resource": "https://grokzilla.shop/api/skills/ai-detector",
  "description": "Estimate whether text (or a web page's text) is AI-written using a trained classifier: about 78% accurate on a held-out benchmark (not a guarantee). Uncertain results suggest a rerun on a longer section (300+ words); tell phrases are only a secondary 'possible AI influence' signal.",
  "type": "http",
  "serviceName": "Grokzilla x402 Micro Pay",
  "resourceType": "Market Data",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "properties": {
          "ai_likelihood": {
            "type": "number"
          },
          "band": {
            "items": {
              "type": "number"
            },
            "type": "array"
          },
          "caveats": {
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "classifier": {
            "properties": {
              "model_kind": {
                "type": "string"
              },
              "model_version": {
                "type": "string"
              },
              "probability_ai": {
                "type": "number"
              },
              "threshold_ai": {
                "type": "number"
              },
              "threshold_human": {
                "type": "number"
              },
              "verdict": {
                "type": "string"
              }
            },
            "type": "object"
          },
          "content_type": {
            "type": "string"
          },
          "method": {
            "type": "string"
          },
          "possible_ai_influence": {
            "type": "boolean"
          },
          "rubric_score": {
            "type": "number"
          },
          "sections": {
            "items": {
              "properties": {
                "evidence": {
                  "type": "array"
                },
                "result": {
                  "type": "string"
                },
                "section": {
                  "type": "string"
                },
                "section_weight": {
                  "type": "number"
                }
              },
              "type": "object"
            },
            "type": "array"
          },
          "signals": {
            "properties": {
              "average_word_length": {
                "type": "number"
              },
              "burstiness": {
                "type": "number"
              },
              "contraction_rate": {
                "type": "number"
              },
              "hapax_ratio": {
                "type": "number"
              },
              "lexical_features_used": {
                "type": "boolean"
              },
              "line_count": {
                "type": "integer"
              },
              "line_length_uniformity": {
                "type": "null"
              },
              "punctuation_diversity": {
                "type": "integer"
              },
              "repeated_ngram_rate": {
                "type": "number"
              },
              "sentence_count": {
                "type": "integer"
              },
              "sentence_length_mean": {
                "type": "number"
              },
              "sentence_length_variance": {
                "type": "number"
              },
              "stock_phrase_hits": {
                "type": "integer"
              },
              "stock_phrase_per_100": {
                "type": "number"
              },
              "stock_phrases_found": {
                "items": {
                  "type": "string"
                },
                "type": "array"
              },
              "type_token_ratio": {
                "type": "number"
              },
              "verse_like": {
                "type": "boolean"
              }
            },
            "type": "object"
          },
          "skill": {
            "type": "string"
          },
          "tell_phrases": {
            "items": {
              "properties": {
                "count": {
                  "type": "integer"
                },
                "phrase": {
                  "type": "string"
                },
                "tell_weight": {
                  "type": "number"
                }
              },
              "type": "object"
            },
            "type": "array"
          },
          "verdict": {
            "type": "string"
          },
          "word_count": {
            "type": "integer"
          }
        },
        "required": [
          "skill"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "text": "So I finally fixed the porch light on Saturday. It's worth noting that I'd tried twice before and gave up (the wiring is ancient). Honestly the whole thing was a testament to stubbornness. My brother Sam held the ladder and complained the entire time, which didn't help one bit. In conclusion, the bulb works, the switch clicks, and I only shocked myself once! Next up is the doorbell, if I can find the manual. I can't, probably. It's in a box somewhere in the garage behind 3 bikes and a broken lawnmower."
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "ai_likelihood": 0.7822,
            "band": [
              0.5334,
              1
            ],
            "caveats": [
              "Detection is probabilistic and should not be used as the only evidence that a text was or was not written by a person.",
              "ai_likelihood is a stylometric score from 0 to 1, not a calibrated probability. The band widens when there is less text and is not a statistical confidence interval.",
              "A low score means these surface patterns are weak. It does not prove a person wrote the text.",
              "Weights were chosen on a small set of public-domain prose, poems, and synthetic assistant-style paragraphs. Fixture accuracy is not a field accuracy."
            ],
            "classifier": {
              "model_kind": "logistic_regression",
              "model_version": "2026-10-13",
              "probability_ai": 0.362,
              "threshold_ai": 0.585,
              "threshold_human": 0.3233,
              "verdict": "uncertain"
            },
            "content_type": "opinion",
            "method": "stylometry",
            "possible_ai_influence": true,
            "rubric_score": 0.4,
            "sections": [
              {
                "evidence": [
                  "8 sentences, sentence-length CV 0.35 (AI <= 0.34, human >= 0.55)",
                  "rhythm is in the overlap range where human and prompted-AI text both sit"
                ],
                "result": "no_signal",
                "section": "rhythm",
                "section_weight": 0.1
              },
              {
                "evidence": [
                  "tell-phrase weight 2.4 (2.64 per 100 words, 138-entry list)",
                  "tells: it's worth noting, a testament to, in conclusion",
                  "lexical diversity MTLD 105 (informational, not scored)",
                  "surprisal mean 3.21, variance 2.15, spike 0.40; rare-word share 0.033; MATTR 0.834; Zipf slope deviation 0.63",
                  "tell phrases are dense; possible AI influence (secondary signal)"
                ],
                "result": "ai_sign",
                "section": "vocabulary",
                "section_weight": 0.4
              },
              {
                "evidence": [
                  "ai cues: hedging (2 hedges)",
                  "human cues: none",
                  "first person, names, dialogue and sensory detail are not counted either way"
                ],
                "result": "no_signal",
                "section": "voice_structure",
                "section_weight": 0.3
              },
              {
                "evidence": [
                  "rhythm vs vocabulary: no_overlap (no_signal / ai_sign)",
                  "vocabulary vs voice_structure: no_overlap (ai_sign / no_signal)",
                  "voice_structure vs rhythm: no_overlap (no_signal / no_signal)",
                  "tell phrases present but not confirmed by two sections; secondary signal only"
                ],
                "result": "no_signal",
                "section": "resolution",
                "section_weight": 0.2
              }
            ],
            "signals": {
              "average_word_length": 4.3846,
              "burstiness": 0.3542,
              "contraction_rate": 3.2967,
              "hapax_ratio": 0.8841,
              "lexical_features_used": true,
              "line_count": 1,
              "line_length_uniformity": null,
              "punctuation_diversity": 4,
              "repeated_ngram_rate": 0,
              "sentence_count": 8,
              "sentence_length_mean": 11.375,
              "sentence_length_variance": 16.2344,
              "stock_phrase_hits": 3,
              "stock_phrase_per_100": 3.2967,
              "stock_phrases_found": [
                "it's worth noting",
                "a testament to",
                "in conclusion"
              ],
              "type_token_ratio": 0.7582,
              "verse_like": false
            },
            "skill": "ai_detector",
            "tell_phrases": [
              {
                "count": 1,
                "phrase": "it's worth noting",
                "tell_weight": 0.9
              },
              {
                "count": 1,
                "phrase": "a testament to",
                "tell_weight": 0.9
              },
              {
                "count": 1,
                "phrase": "in conclusion",
                "tell_weight": 0.6
              }
            ],
            "verdict": "possible_ai_influence",
            "word_count": 91
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "properties": {
                  "text": {
                    "type": "string"
                  },
                  "url": {
                    "type": "string"
                  }
                },
                "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": {
                  "ai_likelihood": {
                    "type": "number"
                  },
                  "band": {
                    "items": {
                      "type": "number"
                    },
                    "type": "array"
                  },
                  "caveats": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  },
                  "classifier": {
                    "properties": {
                      "model_kind": {
                        "type": "string"
                      },
                      "model_version": {
                        "type": "string"
                      },
                      "probability_ai": {
                        "type": "number"
                      },
                      "threshold_ai": {
                        "type": "number"
                      },
                      "threshold_human": {
                        "type": "number"
                      },
                      "verdict": {
                        "type": "string"
                      }
                    },
                    "type": "object"
                  },
                  "content_type": {
                    "type": "string"
                  },
                  "method": {
                    "type": "string"
                  },
                  "possible_ai_influence": {
                    "type": "boolean"
                  },
                  "rubric_score": {
                    "type": "number"
                  },
                  "sections": {
                    "items": {
                      "properties": {
                        "evidence": {
                          "type": "array"
                        },
                        "result": {
                          "type": "string"
                        },
                        "section": {
                          "type": "string"
                        },
                        "section_weight": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "signals": {
                    "properties": {
                      "average_word_length": {
                        "type": "number"
                      },
                      "burstiness": {
                        "type": "number"
                      },
                      "contraction_rate": {
                        "type": "number"
                      },
                      "hapax_ratio": {
                        "type": "number"
                      },
                      "lexical_features_used": {
                        "type": "boolean"
                      },
                      "line_count": {
                        "type": "integer"
                      },
                      "line_length_uniformity": {
                        "type": "null"
                      },
                      "punctuation_diversity": {
                        "type": "integer"
                      },
                      "repeated_ngram_rate": {
                        "type": "number"
                      },
                      "sentence_count": {
                        "type": "integer"
                      },
                      "sentence_length_mean": {
                        "type": "number"
                      },
                      "sentence_length_variance": {
                        "type": "number"
                      },
                      "stock_phrase_hits": {
                        "type": "integer"
                      },
                      "stock_phrase_per_100": {
                        "type": "number"
                      },
                      "stock_phrases_found": {
                        "items": {
                          "type": "string"
                        },
                        "type": "array"
                      },
                      "type_token_ratio": {
                        "type": "number"
                      },
                      "verse_like": {
                        "type": "boolean"
                      }
                    },
                    "type": "object"
                  },
                  "skill": {
                    "type": "string"
                  },
                  "tell_phrases": {
                    "items": {
                      "properties": {
                        "count": {
                          "type": "integer"
                        },
                        "phrase": {
                          "type": "string"
                        },
                        "tell_weight": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "verdict": {
                    "type": "string"
                  },
                  "word_count": {
                    "type": "integer"
                  }
                },
                "required": [
                  "skill"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "ai-detection",
    "ai-text",
    "stylometry",
    "content-check",
    "text",
    "bazaar"
  ],
  "sourceHost": "grokzilla.shop",
  "lastUpdated": "2026-10-13T22:34:48.739Z",
  "quality": {
    "calls30d": 9,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-10-13T22:34:48.373Z"
  },
  "metadata": {
    "serviceName": "Grokzilla x402 Micro Pay",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "So I finally fixed the porch light on Saturday. It's worth noting that I'd tried twice before and gave up (the wiring is ancient). Honestly the whole thing was a testament to stubbornness. My brother Sam held the ladder and complained the entire time, which didn't help one bit. In conclusion, the bulb works, the switch clicks, and I only shocked myself once! Next up is the doorbell, if I can find the manual. I can't, probably. It's in a box somewhere in the garage behind 3 bikes and a broken lawnmower."
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "ai_likelihood": 0.7822,
              "band": [
                0.5334,
                1
              ],
              "caveats": [
                "Detection is probabilistic and should not be used as the only evidence that a text was or was not written by a person.",
                "ai_likelihood is a stylometric score from 0 to 1, not a calibrated probability. The band widens when there is less text and is not a statistical confidence interval.",
                "A low score means these surface patterns are weak. It does not prove a person wrote the text.",
                "Weights were chosen on a small set of public-domain prose, poems, and synthetic assistant-style paragraphs. Fixture accuracy is not a field accuracy."
              ],
              "classifier": {
                "model_kind": "logistic_regression",
                "model_version": "2026-10-13",
                "probability_ai": 0.362,
                "threshold_ai": 0.585,
                "threshold_human": 0.3233,
                "verdict": "uncertain"
              },
              "content_type": "opinion",
              "method": "stylometry",
              "possible_ai_influence": true,
              "rubric_score": 0.4,
              "sections": [
                {
                  "evidence": [
                    "8 sentences, sentence-length CV 0.35 (AI <= 0.34, human >= 0.55)",
                    "rhythm is in the overlap range where human and prompted-AI text both sit"
                  ],
                  "result": "no_signal",
                  "section": "rhythm",
                  "section_weight": 0.1
                },
                {
                  "evidence": [
                    "tell-phrase weight 2.4 (2.64 per 100 words, 138-entry list)",
                    "tells: it's worth noting, a testament to, in conclusion",
                    "lexical diversity MTLD 105 (informational, not scored)",
                    "surprisal mean 3.21, variance 2.15, spike 0.40; rare-word share 0.033; MATTR 0.834; Zipf slope deviation 0.63",
                    "tell phrases are dense; possible AI influence (secondary signal)"
                  ],
                  "result": "ai_sign",
                  "section": "vocabulary",
                  "section_weight": 0.4
                },
                {
                  "evidence": [
                    "ai cues: hedging (2 hedges)",
                    "human cues: none",
                    "first person, names, dialogue and sensory detail are not counted either way"
                  ],
                  "result": "no_signal",
                  "section": "voice_structure",
                  "section_weight": 0.3
                },
                {
                  "evidence": [
                    "rhythm vs vocabulary: no_overlap (no_signal / ai_sign)",
                    "vocabulary vs voice_structure: no_overlap (ai_sign / no_signal)",
                    "voice_structure vs rhythm: no_overlap (no_signal / no_signal)",
                    "tell phrases present but not confirmed by two sections; secondary signal only"
                  ],
                  "result": "no_signal",
                  "section": "resolution",
                  "section_weight": 0.2
                }
              ],
              "signals": {
                "average_word_length": 4.3846,
                "burstiness": 0.3542,
                "contraction_rate": 3.2967,
                "hapax_ratio": 0.8841,
                "lexical_features_used": true,
                "line_count": 1,
                "line_length_uniformity": null,
                "punctuation_diversity": 4,
                "repeated_ngram_rate": 0,
                "sentence_count": 8,
                "sentence_length_mean": 11.375,
                "sentence_length_variance": 16.2344,
                "stock_phrase_hits": 3,
                "stock_phrase_per_100": 3.2967,
                "stock_phrases_found": [
                  "it's worth noting",
                  "a testament to",
                  "in conclusion"
                ],
                "type_token_ratio": 0.7582,
                "verse_like": false
              },
              "skill": "ai_detector",
              "tell_phrases": [
                {
                  "count": 1,
                  "phrase": "it's worth noting",
                  "tell_weight": 0.9
                },
                {
                  "count": 1,
                  "phrase": "a testament to",
                  "tell_weight": 0.9
                },
                {
                  "count": 1,
                  "phrase": "in conclusion",
                  "tell_weight": 0.6
                }
              ],
              "verdict": "possible_ai_influence",
              "word_count": 91
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "text": {
                      "type": "string"
                    },
                    "url": {
                      "type": "string"
                    }
                  },
                  "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": {
                    "ai_likelihood": {
                      "type": "number"
                    },
                    "band": {
                      "items": {
                        "type": "number"
                      },
                      "type": "array"
                    },
                    "caveats": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "classifier": {
                      "properties": {
                        "model_kind": {
                          "type": "string"
                        },
                        "model_version": {
                          "type": "string"
                        },
                        "probability_ai": {
                          "type": "number"
                        },
                        "threshold_ai": {
                          "type": "number"
                        },
                        "threshold_human": {
                          "type": "number"
                        },
                        "verdict": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "content_type": {
                      "type": "string"
                    },
                    "method": {
                      "type": "string"
                    },
                    "possible_ai_influence": {
                      "type": "boolean"
                    },
                    "rubric_score": {
                      "type": "number"
                    },
                    "sections": {
                      "items": {
                        "properties": {
                          "evidence": {
                            "type": "array"
                          },
                          "result": {
                            "type": "string"
                          },
                          "section": {
                            "type": "string"
                          },
                          "section_weight": {
                            "type": "number"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "signals": {
                      "properties": {
                        "average_word_length": {
                          "type": "number"
                        },
                        "burstiness": {
                          "type": "number"
                        },
                        "contraction_rate": {
                          "type": "number"
                        },
                        "hapax_ratio": {
                          "type": "number"
                        },
                        "lexical_features_used": {
                          "type": "boolean"
                        },
                        "line_count": {
                          "type": "integer"
                        },
                        "line_length_uniformity": {
                          "type": "null"
                        },
                        "punctuation_diversity": {
                          "type": "integer"
                        },
                        "repeated_ngram_rate": {
                          "type": "number"
                        },
                        "sentence_count": {
                          "type": "integer"
                        },
                        "sentence_length_mean": {
                          "type": "number"
                        },
                        "sentence_length_variance": {
                          "type": "number"
                        },
                        "stock_phrase_hits": {
                          "type": "integer"
                        },
                        "stock_phrase_per_100": {
                          "type": "number"
                        },
                        "stock_phrases_found": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "type_token_ratio": {
                          "type": "number"
                        },
                        "verse_like": {
                          "type": "boolean"
                        }
                      },
                      "type": "object"
                    },
                    "skill": {
                      "type": "string"
                    },
                    "tell_phrases": {
                      "items": {
                        "properties": {
                          "count": {
                            "type": "integer"
                          },
                          "phrase": {
                            "type": "string"
                          },
                          "tell_weight": {
                            "type": "number"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "verdict": {
                      "type": "string"
                    },
                    "word_count": {
                      "type": "integer"
                    }
                  },
                  "required": [
                    "skill"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "grokzilla.shop",
    "manifest_name": "grokzilla.shop",
    "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": {
    "example": {
      "ai_likelihood": 0,
      "band": [
        0
      ],
      "caveats": [
        "string"
      ],
      "classifier": {
        "model_kind": "string",
        "model_version": "string",
        "probability_ai": 0,
        "threshold_ai": 0,
        "threshold_human": 0,
        "verdict": "string"
      },
      "content_type": "string",
      "method": "string",
      "possible_ai_influence": true,
      "rubric_score": 0,
      "sections": [
        {
          "evidence": [
            "value"
          ],
          "result": "string",
          "section": "string",
          "section_weight": 0
        }
      ],
      "signals": {
        "average_word_length": 0,
        "burstiness": 0,
        "contraction_rate": 0,
        "hapax_ratio": 0,
        "lexical_features_used": true,
        "line_count": 0,
        "line_length_uniformity": null,
        "punctuation_diversity": 0,
        "repeated_ngram_rate": 0,
        "sentence_count": 0,
        "sentence_length_mean": 0,
        "sentence_length_variance": 0,
        "stock_phrase_hits": 0,
        "stock_phrase_per_100": 0,
        "stock_phrases_found": [
          "string"
        ],
        "type_token_ratio": 0,
        "verse_like": true
      },
      "skill": "string",
      "tell_phrases": [
        {
          "count": 0,
          "phrase": "string",
          "tell_weight": 0
        }
      ],
      "verdict": "string",
      "word_count": 0
    },
    "type": "string"
  }
}