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Web3 Tools CAIP ID Parser
x402
Web3 Tools CAIP ID Parser is a paid API for AI agents from web3-tools.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Parses and validates CAIP-2 chain IDs, CAIP-10 account IDs, and CAIP-19 asset IDs, returning namespace, reference, known chain name, and address details.
Price / call$0.02
Success—
StatusUnknown
How this service works
Parse CAIP-2 chain ids, CAIP-10 account ids and CAIP-19 asset ids: namespace, reference, known chain name, address check.
Output
Returns a structured object with namespace, reference, chainId, numericChainId, chainName, kind (chain/account/asset), verdict, summary, reasons, and degraded/disclaimer flags. The 'kind' field distinguishes CAIP-2 (chain), CAIP-10 (account), or CAIP-19 (asset) identifiers. The 'verdict' field indicates validity, with 'reasons' listing any issues.
Example use cases
Identify chain from CAIP-2 string
“I have the CAIP-2 identifier eip155:8453 — can you parse it and tell me what blockchain it refers to, including its common name and numeric chain ID?”
Validate ERC-20 token CAIP-19 asset ID
“Parse this CAIP-19 asset ID for me: eip155:1/erc20:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 — I need to know the namespace, chain reference, asset kind, and whether it's a valid identifier.”
Decode cross-chain account ID in dApp
“My wallet is showing the account ID eip155:137:0x1234abcd1234abcd1234abcd1234abcd1234abcd — can you break it down into namespace, chain reference, chain name, and address, and tell me if everything checks out?”
Technical details
Endpoint
GEThttps://web3-tools.x402tookit.com/caip-parse?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically parse or validate any CAIP-2, CAIP-10, or CAIP-19 identifier in a multi-chain context. Prefer it over ad-hoc string splitting when you need reliable namespace/reference extraction, human-readable chain names, or address validity checks — especially in cross-chain dApps, wallets, or agent workflows that handle identifiers from multiple blockchains.
Side effects
- Malformed CAIP ID (missing colons, wrong delimiter) returns a non-passing verdict with reasons
- Unknown or unsupported namespace returns null chainName
- Unrecognized chain reference returns null numericChainId
- Address checksum failures reflected in verdict/reasons
- Missing required 'id' query parameter returns an error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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