Roundhouse AI

ledgerproofhq.io

LAIN confidence: independently verifiable evidence about the subject — <entity/product/firm>

Otheroffline · HTTP 502eip155:8453Exactvia cdp
https://ledgerproofhq.io/api/lain/confidence
Calls · 30d
3→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$0.15
Verified settled volume
3 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-20 06:52Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x519671b571aE670813B369642A31fE8765827328

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.

Accepts

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

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x5196…27328. The signed payment is good for 2 minutes.

Paid to
0x5196…27328
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
50000 smallest units
Buys
LAIN confidence: independently verifiable evidence about the subject — <entity/product/firm>
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x519671b571aE670813B369642A31fE8765827328",
    "scheme": "exact",
    "network": "base",
    "mimeType": "application/json",
    "resource": "https://ledgerproofhq.io/api/lain/confidence",
    "description": "LAIN confidence: independently verifiable evidence about the subject — <entity/product/firm>",
    "outputSchema": {
      "input": {
        "body": {
          "subject": "<entity/product/firm>",
          "settlement": "x402",
          "current_confidence": 0.5,
          "required_confidence": 0.99
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "discoverable": true
      },
      "output": {
        "outcome": "settled",
        "receipt": "anchored evidence receipt {content_hash,sequence,verify_url}",
        "evidence": "anchored public-record evidence + a permanent evidence-graph node"
      }
    },
    "maxAmountRequired": "50000",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "subject": "<entity/product/firm>",
          "settlement": "x402",
          "current_confidence": 0.5,
          "required_confidence": 0.99
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {}
    },
    "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": {
              "type": "object"
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-20 06:52Z
Last indexed by Roundhouse
2026-09-07 18:20Z
Last enriched (probe, favicon, geo)
2026-09-24 02:15Z
x402 version
1
Max timeout
120s
Liveness probe
HTTP 502
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. 15 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 ledgerproofhq.io 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=ledgerproofhq.io'
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://ledgerproofhq.io/api/lain/confidence, 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.