Roundhouse

verity.basechainlabs.com

VERITY verifies claims, URLs, and content against live web sources. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verdicts with confidence scores. Agent-native, x402 payments.

DataLiveeip155:8453Exactvia cdp
https://verity.basechainlabs.com/api/agent
Settlements · 30d
40↑ 1650%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$19.05
Verified settled volume
63 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-19 05:14Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x400d65bb174c546ed92f5d61ce21fbde96b8bacc

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonAeonosERC-8004

Accepts

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

0.1USDC≈ $0.1 USD
on Base · exact scheme

Pay 0.1 USDC on Base to 0x400d…8bacc. The signed payment is good for 5 minutes.

Paid to
0x400d…8bacc
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
100000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x400d65bb174c546ed92f5d61ce21fbde96b8bacc",
    "amount": "100000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "query": "Is GPT-4 still the most capable AI model?",
          "caller_id": "my-agent-id"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "status": "completed",
          "artifact": {
            "index": 0,
            "parts": [
              {
                "text": "{\"verdict\":\"OUTDATED\",\"confidence\":91,\"summary\":\"...\",\"sources\":[...]}",
                "type": "text"
              }
            ]
          }
        }
      }
    },
    "tags": [
      "fact-check",
      "verification",
      "data-freshness",
      "hallucination",
      "claim-check"
    ],
    "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": {
              "required": [
                "query"
              ],
              "properties": {
                "query": {
                  "type": "string",
                  "description": "Claim, URL, or question to verify. E.g. 'Is X still true?', 'Check this URL: https://...'."
                },
                "caller_id": {
                  "type": "string",
                  "description": "Optional stable ID for persistent memory across verification sessions."
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "status": {
                  "type": "string"
                },
                "tokens": {
                  "type": "number"
                },
                "artifact": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "iconUrl": "https://verity.basechainlabs.com/verity-logo.jpg",
    "serviceName": "VERITY"
  }
}

Provenance

Seen in the source catalog
2026-06-19 05:14Z
Last indexed by Roundhouse
2026-07-17 12:00Z
Last enriched (probe, favicon, geo)
2026-09-22 16:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 200
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 verity.basechainlabs.com 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=verity.basechainlabs.com'
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://verity.basechainlabs.com/api/agent, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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