Api Endpoint

Toll402

Answer from TRUSTED sources only (Wikipedia, Wikidata, arXiv, Crossref/DOI, World Bank): returns passages with URL, reliability tier and retrieval time for citation. With synthesize=true you also get an LLM answer that cites the passages and admits when they don't contain the answer.

Open interactive test console

Offering

Provider: toll402.dev
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Web Search Research
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://toll402.dev/v1/lookup
MIME type: Not provided
First seen: 2026-10-16T01:50:14.534Z
Last seen: 2026-11-01T15:01:20.731Z
Tags: Research, facts, citations, trusted, reference

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x318d34fa0bd69eff17fac648d2df8cf7a88b3dbe"
  }
]

Observed health

Status: Healthy
Latest latency: 20 ms
Average latency: 26 ms
HTTP status: 204
Last checked: 2026-11-01T02:50:33.352Z
Reachability: 100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "language": {
          "default": "en",
          "description": "Wikipedia language edition (en, es, de, fr, pt, ...)",
          "maxLength": 10,
          "type": "string"
        },
        "maxPassages": {
          "default": 6,
          "maximum": 20,
          "minimum": 1,
          "type": "integer"
        },
        "query": {
          "description": "Question or topic",
          "maxLength": 500,
          "minLength": 2,
          "type": "string"
        },
        "sources": {
          "default": [
            "wikipedia",
            "wikidata",
            "arxiv",
            "crossref"
          ],
          "items": {
            "enum": [
              "wikipedia",
              "wikidata",
              "arxiv",
              "crossref",
              "worldbank"
            ],
            "type": "string"
          },
          "type": "array"
        },
        "synthesize": {
          "default": true,
          "description": "Return a cited answer synthesized by an LLM (when the server has an LLM key)",
          "type": "boolean"
        }
      },
      "required": [
        "query"
      ],
      "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 schema

{
  "properties": {
    "example": {
      "properties": {
        "ms": {
          "type": "integer"
        },
        "ok": {
          "type": "boolean"
        },
        "result": {
          "properties": {
            "passages": {
              "items": {
                "properties": {
                  "retrievedAt": {
                    "type": "string"
                  },
                  "snippet": {
                    "type": "string"
                  },
                  "source": {
                    "type": "string"
                  },
                  "tier": {
                    "type": "integer"
                  },
                  "title": {
                    "type": "string"
                  },
                  "url": {
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": "array"
            }
          },
          "type": "object"
        },
        "tool": {
          "type": "string"
        }
      },
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}