API Acre · Data Contract

by API Acre

POSTBaseSolana

$0.035

per call · USD Coin on Base

Normalize caller-supplied CSV, TSV, JSON, JSON Lines, or YAML to deterministic JSON, infer a Draft 2020-12 schema from that normalized value, and validate one future JSON value in a single x402 call.

Endpoint

POST https://apiacre.com/v1/data/contract

2

Calls / 30d

1

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://apiacre.com/v1/data/contract", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "check_formats": true,
    "content": "[{\"name\":\"Ada\",\"score\":98}]",
    "format": "json",
    "instance": [
      {
        "name": "Lin",
        "score": 91
      }
    ],
    "max_errors": 25,
    "root_mode": "records"
  }),
});
const data = await res.json();
cURL
curl -X POST \
  "https://apiacre.com/v1/data/contract" \
  -H "Content-Type: application/json" \
  -d '{"check_formats":true,"content":"[{\"name\":\"Ada\",\"score\":98}]","format":"json","instance":[{"name":"Lin","score":91}],"max_errors":25,"root_mode":"records"}' \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "data": {
    "contract": {
      "inference": {
        "csvEmptyStringsAsNull": false,
        "csvNumericStringsCoerced": false,
        "dialect": "https://json-schema.org/draft/2020-12/schema",
        "tabularNumericStringsCoerced": false,
        "version": "apiacre-schema-inference/3"
      },
      "input": {
        "characters": 46,
        "format": "json",
        "records": 1,
        "rootMode": "records",
        "utf8Bytes": 46
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "items": {
          "properties": {
            "name": {
              "type": "string",
              "x-apiacre-observed": {
                "missingCount": 0,
                "nullCount": 0,
                "presentCount": 1,
                "sampleCount": 1,
                "types": [
                  "string"
                ]
              }
            },
            "score": {
              "type": "integer",
              "x-apiacre-observed": {
                "missingCount": 0,
                "nullCount": 0,
                "presentCount": 1,
                "sampleCount": 1,
                "types": [
                  "integer"
                ]
              }
            }
          },
          "required": [
            "name",
            "score"
          ],
          "type": "object",
          "x-apiacre-observed": {
            "missingCount": 0,
            "nullCount": 0,
            "presentCount": 1,
            "sampleCount": 1,
            "types": [
              "object"
            ]
          }
        },
        "type": "array",
        "x-apiacre-observed": {
          "missingCount": 0,
          "nullCount": 0,
          "presentCount": 1,
          "sampleCount": 1,
          "types": [
            "array"
          ]
        }
      }
    },
    "normalized": {
      "content": "[\n  {\n    \"name\": \"Ada\",\n    \"score\": 98\n  }\n]",
      "format": "json",
      "records": 1,
      "rootMode": "records",
      "sourceFormat": "json"
    },
    "pipeline": {
      "deterministic": true,
      "networkRequestsMade": 0,
      "singlePaymentAuthorization": true,
      "steps": [
        "normalize-to-json",
        "infer-draft-2020-12",
        "validate-instance"
      ],
      "version": "apiacre-data-contract/1"
    },
    "validation": {
      "errorCount": 0,
      "errorCountExact": true,
      "instanceValid": true,
      "schemaValid": true,
      "valid": true
    }
  },
  "meta": {
    "cached": false,
    "duration_ms": 42,
    "next_actions": [],
    "sources": [],
    "warnings": []
  },
  "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
  "service": "data.contract",
  "version": "1"
}

Payment details

Pay to0xa0bfa4f07281c9b248dc3aed2217836bca24869b
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana
Schemesexact

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