Buyer-controlled x402 recipe

Repair malformed JSON and enforce its contract

Apply only explicit deterministic syntax repairs to caller-supplied JSON, infer a Draft 2020-12 schema from the valid result, then validate a future JSON value.

3separately authorized steps

$0.04maximum listed total · USDC

eip155:8453Base network

Review quote and start step 1 Copy exact recipe JSON

$0.005 USDC · separate authorization

Deterministic JSON repair

Repair common syntax defects and retain transformation hashes.

POSThttps://apiacre.com/v1/data/json-repair

Input template

{
  "content": "$malformedJson",
  "repairs": [
    "markdown_fence",
    "comments",
    "single_quoted_strings",
    "unquoted_keys",
    "python_literals",
    "trailing_commas"
  ]
}

Use this result

Continue only if result.data.valid is true; inspect appliedRepairs and retain the input and output hashes.

Review quote and run step 1 API documentation Inspect free sample

$0.025 USDC · separate authorization

Schema inference

Infer a reusable contract from the repaired JSON value.

POSThttps://apiacre.com/v1/data/schema

Input template

{
  "content": "$step1.result.data.content",
  "format": "json",
  "root_mode": "preserve"
}

Use this result

Pass result.data.schema to the validation step.

Review quote and run step 2 API documentation Inspect free sample

$0.01 USDC · separate authorization

JSON Schema validation

Validate a future caller-supplied value against the inferred contract.

POSThttps://apiacre.com/v1/data/schema-validate

Input template

{
  "schema": "$step2.result.data.schema",
  "instance": "$futureJsonValue",
  "max_errors": 25,
  "check_formats": true
}

Use this result

Require result.data.valid and inspect bounded JSON Pointer errors before accepting the future value.

Review quote and run step 3 API documentation Inspect free sample

You stay in control. Each step is an independent API call. Inspect its HTTP 402 challenge, authorize no more than the displayed price, verify the result, and continue only when the output is suitable. The listed total is not a bundle charge.