{
  "x402Version": 2,
  "id": 5904,
  "slug": "5904",
  "resource": "https://402utils.com/v1/rerank",
  "description": "Rerank passages by relevance to a query via Cloudflare Workers AI (@cf/baai/bge-reranker-base). Send {query, documents[] (≤50, each ≤4000 chars), topK?}; returns [{index, score}] best-first — the missing link after embed/chunk, keeping the top chunks before a costly LLM call. Score is the model's relevance score (higher = better), named as it only compares within this model. Unavailable binding → 503, unbilled.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "4000",
      "maxTimeoutSeconds": 60
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "documents": [
              "To reset your password, click 'Forgot password' on the sign-in page.",
              "Our office is open Monday to Friday, 9am to 5pm.",
              "Passwords must be at least 12 characters and are reset from account settings."
            ],
            "query": "How do I reset my password?",
            "topK": 2
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "model": "@cf/baai/bge-reranker-base",
            "results": [
              {
                "index": 0,
                "score": 0.98
              },
              {
                "index": 2,
                "score": 0.71
              }
            ]
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "properties": {
                  "documents": {
                    "description": "Candidate passages to rank (≤ 50, each ≤ 4000 chars).",
                    "items": {
                      "type": "string"
                    },
                    "maxItems": 50,
                    "type": "array"
                  },
                  "query": {
                    "description": "The search query (≤ 4000 chars).",
                    "type": "string"
                  },
                  "returnDocuments": {
                    "default": false,
                    "description": "Include each ranked document's text in the results.",
                    "type": "boolean"
                  },
                  "topK": {
                    "description": "Return only the K best (default: all, ranked).",
                    "minimum": 1,
                    "type": "integer"
                  }
                },
                "required": [
                  "query",
                  "documents"
                ],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "additionalProperties": false,
                "properties": {
                  "model": {
                    "description": "The reranker model used (scores compare only within one model).",
                    "type": "string"
                  },
                  "results": {
                    "description": "Ranked best-first. `index` refers to the input documents array.",
                    "items": {
                      "properties": {
                        "document": {
                          "description": "The document text (only when returnDocuments=true).",
                          "type": "string"
                        },
                        "index": {
                          "description": "Position of this document in the request `documents` array.",
                          "type": "integer"
                        },
                        "score": {
                          "description": "Relevance score from the model (higher = more relevant).",
                          "type": "number"
                        }
                      },
                      "required": [
                        "index",
                        "score"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "results",
                  "model"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "402utils.com",
  "lastUpdated": "2026-09-16T21:26:01.598Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-16T21:26:01.401Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "402utils.com",
    "manifest_name": "402utils.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}