Agent Evidence API & US Weather

Name: Agent Evidence API & US Weather
Price: 0.01 USDC
Availability: InStock

Cited, source-grounded web evidence and claim verification plus US weather for AI agents. Paid per call in USDC on Base over x402. No API key, no account.

SearchLiveeip155:8453Exactvia facilitator:payAI

https://agent-evidence.thx93.dev/v1/evidence

Claim-verificationFact-checkingWeb-evidenceSource-verificationCitations

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far.

$0.29

Verified settled volume

40 settlements proven x402 by their on-chain EIP-3009 marker.

$0.010

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x9c0e2B44180439294Fa30Ae2B2a94f8655455FD0

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": {
    "code": "PAYMENT_REQUIRED",
    "message": "This endpoint requires payment. See https://agent-evidence.thx93.dev/ for the terms.",
    "request_id": "req_30360bc2aff84a1b9cb32aad"
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x9c0e2B44180439294Fa30Ae2B2a94f8655455FD0",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://agent-evidence.thx93.dev/v1/evidence",
    "tags": [
      "claim-verification",
      "fact-checking",
      "web-evidence",
      "source-verification",
      "citations"
    ],
    "mimeType": "",
    "description": "Verify a claim or fact check a statement against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, content hash. Never charges when nothing is retrieved. Free to evaluate: the `sample` tool returns one real response at no cost, so you can judge the output before paying for your own question.",
    "serviceName": "Agent Evidence API & US Weather"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "mode": "evidence",
            "urls": [
              "https://company.example/about",
              "https://company.example/products"
            ],
            "language": "auto",
            "question": "Is Company X a manufacturer of centrifugal pumps?",
            "max_sources": 5
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "sources": [
              {
                "title": "Company X - About",
                "status": 200,
                "evidence": [
                  {
                    "context": "h2:Products > p[1]",
                    "excerpt": "Company X manufactures centrifugal pumps at its facility.",
                    "relevance": "direct"
                  }
                ],
                "language": "en",
                "warnings": [],
                "final_url": "https://company.example/about",
                "publisher": "Company X",
                "word_count": 412,
                "content_type": "text/html; charset=utf-8",
                "retrieved_at": "2026-01-01T00:00:00.000Z",
                "canonical_url": "https://company.example/about",
                "requested_url": "https://company.example/about",
                "content_hash_sha256": "9f2c…"
              }
            ],
            "version": "1",
            "question": "Is Company X a manufacturer of centrifugal pumps?",
            "assessment": {
              "basis": "1 source(s) contained passages matching the question (company.example) with no contradicting passages found.",
              "status": "supported"
            },
            "request_id": "req_1f2e3d4c5b6a7988",
            "limitations": [
              "Assessment is derived from deterministic lexical matching, not semantic reasoning."
            ],
            "processing_ms": 812
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "properties": {}
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0x9c0e…55FD0. The signed payment is good for 5 minutes.

Paid to: 0x9c0e…55FD0
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 10000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9c0e2B44180439294Fa30Ae2B2a94f8655455FD0",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "mode": "evidence",
          "urls": [
            "https://company.example/about",
            "https://company.example/products"
          ],
          "language": "auto",
          "question": "Is Company X a manufacturer of centrifugal pumps?",
          "max_sources": 5
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "sources": [
            {
              "title": "Company X - About",
              "status": 200,
              "evidence": [
                {
                  "context": "h2:Products > p[1]",
                  "excerpt": "Company X manufactures centrifugal pumps at its facility.",
                  "relevance": "direct"
                }
              ],
              "language": "en",
              "warnings": [],
              "final_url": "https://company.example/about",
              "publisher": "Company X",
              "word_count": 412,
              "content_type": "text/html; charset=utf-8",
              "retrieved_at": "2026-01-01T00:00:00.000Z",
              "canonical_url": "https://company.example/about",
              "requested_url": "https://company.example/about",
              "content_hash_sha256": "9f2c…"
            }
          ],
          "version": "1",
          "question": "Is Company X a manufacturer of centrifugal pumps?",
          "assessment": {
            "basis": "1 source(s) contained passages matching the question (company.example) with no contradicting passages found.",
            "status": "supported"
          },
          "request_id": "req_1f2e3d4c5b6a7988",
          "limitations": [
            "Assessment is derived from deterministic lexical matching, not semantic reasoning."
          ],
          "processing_ms": 812
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "properties": {}
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-10-22 16:09Z
Last indexed by Roundhouse: 2026-10-26 20:46Z
Last enriched (probe, favicon, geo): 2026-10-22 00:45Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service Agent Evidence API & US Weather and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Agent%20Evidence%20API%20%26%20US%20Weather'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://agent-evidence.thx93.dev/v1/evidence, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.