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Delx Commerce — CAIP-2 Identifier Builder
x402
Delx Commerce — CAIP-2 Identifier Builder is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Constructs a CAIP-2 chain identifier string from a namespace and reference component
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object containing the fully assembled CAIP-2 chain identifier string (e.g. 'eip155:8453'), the namespace used, the reference used, and the schema version ('delx/util-caip2-build/v1').
Example use cases
Resolve Base chain CAIP-2 identifier
“I need the CAIP-2 identifier for the Base blockchain — can you build it using namespace 'eip155' and reference '8453'?”
Standardize Ethereum mainnet chain ID
“What's the CAIP-2 string for Ethereum mainnet? Use namespace 'eip155' and reference '1'.”
Format Solana chain identifier for interoperability
“Give me the CAIP-2 identifier for Solana using namespace 'solana' and reference 'mainnet'.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/caip2-build?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to programmatically construct a standards-compliant CAIP-2 chain identifier from its component parts (namespace + reference) without hardcoding strings. Especially useful in multi-chain agent workflows where dynamic chain resolution is needed, or when building interoperable cross-chain tooling that requires CAIP-2 format. At $0.001 USDC per call with no signup required, it's suitable for lightweight utility use in autonomous agent pipelines.
Side effects
- Missing namespace or reference fields returns a validation error
- Invalid or unrecognized namespace may return an error or unexpected output
- Network or payment failure (x402) may result in no response or HTTP 402
- Malformed input types may cause schema validation errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| namespace | string | Input field: namespace. |
| reference | string | Input field: reference. |
Output
Schema · Response
{
"type": "json",
"example": {
"caip2": "eip155:8453",
"schema": "delx/util-caip2-build/v1",
"namespace": "eip155",
"reference": "8453"
}
}Tags
x402
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