api.aiskills402.com

Live 402 challenge

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

{
  "error": "payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8e37022edcf0f21cf3c9f93fee9d4d32519f36f4",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.aiskills402.com/v1/skills/json-schema-from-example/file",
    "tags": [
      "agent-skill",
      "json-schema-from-example",
      "json-schema",
      "json",
      "schema-inference"
    ],
    "mimeType": "application/json",
    "description": "JSON Schema From Examples: No Over-Constraining — Writes a JSON Schema (draft 2020-12) from example JSON documents plus rules given in words, so that it accepts every example and every document the rules allow, and refuses every document the rules forbid. Nothing is made required, closed, numeric-only, formatted or limited because the examples happen to look that way - a key missing from one example stays optional, two observed values do not become an enum, whole-number examples do not make an …",
    "serviceName": "JSON Schema From Examples"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "file": {
              "name": "SKILL.md",
              "content": "<the SKILL.md file>",
              "encoding": "utf-8"
            },
            "name": "JSON Schema From Examples: No Over-Constraining",
            "skill": "json-schema-from-example",
            "sha256": "<sha256 of SKILL.md>",
            "receipt": {
              "tx": "0x<settlement transaction>",
              "settled": true
            },
            "version": "1.0.0",
            "redownload": {
              "url": "<api>/v1/purchases/<token>",
              "token": "<64 hex chars>"
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD"
                ],
                "type": "string"
              },
              "headers": {
                "type": "object",
                "additionalProperties": {
                  "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.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8e37022edcf0f21cf3c9f93fee9d4d32519f36f4",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.aiskills402.com/v1/skills/json-schema-from-example/file",
    "description": "",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 60
  }
]

Provenance

Seen in the source catalog

2026-10-16 21:23Z

Last indexed by Roundhouse

2026-10-25 15:16Z

Last enriched (probe, favicon, geo)

2026-10-19 00:15Z

x402 version

1

Max timeout

60s

Liveness probe

HTTP 402