SchemaSure

Turn messy text, HTML, or document images into guaranteed schema-valid JSON, or pay nothing.

MediaLiveeip155:8453Exactvia cdp
x402Structured-outputAi-agentsStructured-dataJson
Calls · 30d
34↑ 7.1%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$6.96
Verified settled volume
503 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
Listed price
As published in the catalog. Always read the live 402 before paying.
34
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-24 07:39Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9876af0F6D8Ed5155Cd02d1ca56D128601612690

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.

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x9876…12690. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9876af0F6D8Ed5155Cd02d1ca56D128601612690",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "image": {
            "data": "<base64-encoded PNG, JPEG, or WebP bytes>",
            "mimeType": "image/png"
          },
          "schema": {
            "type": "object",
            "required": [
              "invoiceNumber",
              "vendor",
              "total"
            ],
            "properties": {
              "total": {
                "type": "number",
                "description": "Final amount due as a number, without currency symbols."
              },
              "vendor": {
                "type": "string"
              },
              "invoiceNumber": {
                "type": "string",
                "description": "Invoice identifier exactly as printed."
              }
            },
            "additionalProperties": false
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "total": 382.45,
            "vendor": "Northstar Supplies",
            "invoiceNumber": "INV-2048"
          },
          "meta": {
            "repairs": 0,
            "latencyMs": 910,
            "validated": true
          }
        }
      }
    },
    "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",
              "required": [
                "image",
                "schema"
              ],
              "properties": {
                "image": {
                  "type": "object",
                  "required": [
                    "data",
                    "mimeType"
                  ],
                  "properties": {
                    "data": {
                      "type": "string",
                      "minLength": 1,
                      "description": "Base64-encoded image bytes without a data-URL prefix.",
                      "contentEncoding": "base64"
                    },
                    "mimeType": {
                      "enum": [
                        "image/png",
                        "image/jpeg",
                        "image/webp"
                      ],
                      "type": "string",
                      "description": "Declared image media type; it must match the decoded file signature."
                    }
                  },
                  "additionalProperties": false
                },
                "schema": {
                  "type": "object",
                  "description": "JSON Schema (draft 2020-12) that the returned `data` is guaranteed to satisfy."
                },
                "options": {
                  "type": "object",
                  "properties": {
                    "strict": {
                      "type": "boolean",
                      "default": true,
                      "description": "Drop fields not present in the schema."
                    },
                    "maxRepairs": {
                      "type": "integer",
                      "maximum": 5,
                      "minimum": 0,
                      "description": "Max validate->re-prompt repair iterations."
                    }
                  },
                  "additionalProperties": false
                }
              },
              "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",
              "required": [
                "data",
                "meta"
              ],
              "properties": {
                "data": {
                  "description": "Extracted value; guaranteed to validate against the request `schema`."
                },
                "meta": {
                  "type": "object",
                  "required": [
                    "repairs",
                    "latencyMs",
                    "validated"
                  ],
                  "properties": {
                    "repairs": {
                      "type": "integer"
                    },
                    "latencyMs": {
                      "type": "integer"
                    },
                    "validated": {
                      "const": true
                    },
                    "deterministicFields": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-24 07:39Z
Last indexed by Roundhouse
2026-09-25 06:50Z
Last enriched (probe, favicon, geo)
2026-09-13 04:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
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 SchemaSure 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=SchemaSure'
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://schemasure.com/v2/extract-image, 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.