Roundhouse AI

api.kgninja.dev

KG-NINJA Agent Error Fix Receipt

OtherLiveeip155:8453Exactvia cdp
https://api.kgninja.dev/fix-error
Calls · 30d
4↑ 47%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.46
Verified settled volume
46 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.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
4
Unique payers · 30d
Last called 2026-09-17 03:27Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4D7d842536De9Eb491AE2300126B3CDdE7B0aDE3

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.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x4D7d…0aDE3. The signed payment is good for 5 minutes.

Paid to
0x4D7d…0aDE3
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": "0x4D7d842536De9Eb491AE2300126B3CDdE7B0aDE3",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "error": "Error: Cannot find module 'hono'",
          "command": "npm run build",
          "environment": "Node.js Cloudflare Worker build"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "mode": "mainnet",
          "status": "paid",
          "network": "eip155:8453",
          "receipt": {
            "risk_note": "Do not run destructive cleanup, reset, rm, database, credential, or firewall commands without manual review.",
            "retry_plan": [
              "Confirm the exact failing command.",
              "Run the smallest non-destructive diagnostic command relevant to the error.",
              "Check whether required environment variables, packages, files, or services are present.",
              "Retry the original command once after the minimal fix."
            ],
            "root_cause": "The failure appears related to a missing package, missing file, or unresolved module path.",
            "generated_at": "2026-06-14T00:00:00.000Z",
            "next_command": "npm install",
            "prevention_note": "Store this error pattern in a runbook and add a preflight check before future runs."
          },
          "service": "Agent Error Fix Receipt",
          "version": "2026-05-25-d1-revenue-log",
          "request_id": "example-request-id",
          "real_revenue": true,
          "input_received": true,
          "revenue_proof_log": "paid_fix_error_receipt_issued",
          "durable_revenue_log": true,
          "post_payment_retry_path": "Retry POST /fix-error with x402 payment proof."
        }
      }
    },
    "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",
              "properties": {
                "log": {
                  "type": "string"
                },
                "error": {
                  "type": "string"
                },
                "command": {
                  "type": "string"
                },
                "environment": {
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "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
2026-09-17 03:27Z
Last indexed by Roundhouse
2026-09-24 13:40Z
Last enriched (probe, favicon, geo)
2026-09-21 12:15Z
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. 30 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 api.kgninja.dev 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=api.kgninja.dev'
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://api.kgninja.dev/fix-error, 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.