Index onlineMerchant portal
Api Endpoint

JSON Validate, Repair, Convert,

Every agent and developer hits broken or confusing JSON. This tool handles the common headaches in one place: check whether JSON is valid with the exact error location, repair near-JSON with typos, pretty-print or minify, pull values out with a path expression, diff two documents, convert to and from YAML or CSV, produce a byte-stable canonical form for hashing, validate against a schema, and report size and structure. Same input, same output, no side effects.

Open interactive test console

Offering

Provider
json-suite.underscoredone.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Development
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://json-suite.underscoredone.com/json
MIME type
application/json
First seen
2026-10-16T01:50:10.647Z
Last seen
Tags
JSON, validate json, json validator, repair json, fix broken json

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b"
  }
]

Observed health

Status
Reachable
Latest latency
52 ms
Average latency
27 ms
HTTP status
405
Last checked
Reachability
66.7% over 3 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "type": "object",
      "properties": {
        "op": {
          "type": "string",
          "description": "What you want to do. Choose one of: validate, repair, format, canonicalize, convert, query, diff, patch, schema, stats."
        },
        "data": {
          "type": "object",
          "description": "The JSON value you want to work with - can be an object, array, string, number, or anything valid. Required for all operations except validate and repair (which use data_raw instead)."
        },
        "data_raw": {
          "type": "string",
          "description": "The raw text you want to validate or repair. Use this instead of data only for the validate and repair operations, because those need to see the original broken text exactly as-is."
        },
        "options": {
          "type": "object",
          "description": "Extra settings for the chosen operation. For example: indent, sort_keys, jsonpath, pointer, to (for convert), schema, data_b (for diff/patch). All optional - the API uses sensible defaults."
        }
      },
      "required": [
        "op"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "properties": {
        "api_version": {
          "type": "string"
        },
        "op": {
          "type": "string"
        },
        "valid": {
          "type": "boolean"
        },
        "matches": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "match_count": {
          "type": "integer"
        }
      },
      "required": [
        "api_version",
        "op",
        "valid",
        "matches",
        "match_count"
      ]
    }
  },
  "required": [
    "type"
  ]
}