Tool detail

explain

Returns a deterministic plain-language explanation for a pasted EVM/RPC/wallet/UserOperation/x402 error, revert or trace.

Categories: Utilities, Code tools

Use when

decode a raw EVM revert or custom error into a plain-language explanation
explain a JSON-RPC or wallet error code with next steps
diagnose an account-abstraction (AA) UserOperation failure

Not for

not a transaction simulator — explains pasted error evidence, executes nothing
not general blockchain Q&A — structured error/revert/trace input only

Inputs

POST JSON body: raw (string, required) — pasted error JSON, text or revert bytes

Admitted input schema

{
  "type": "object",
  "properties": {
    "raw": {
      "type": "string",
      "minLength": 0,
      "maxLength": 4096
    }
  },
  "required": [
    "raw"
  ],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://revert.wtf/api/x402/explain

Payment

Protocol: x402
Listed price: 0.001 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://revert.wtf/api/x402/explain
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z