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ChainVerdict ISIN Validator
x402
ChainVerdict ISIN Validator is a paid API for AI agents from chainverdict.xyz, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-11).
Validates a 12-character ISIN (ISO 6166 securities identifier) and returns validation results for that instrument
Price / call$0.001
Success—
StatusUnknown
How this service works
x402 v2 pay-per-call. Unpaid requests receive HTTP 402 with payment requirements.
Output
Returns a validation response indicating whether the provided ISIN is valid according to ISO 6166 rules, including check-digit verification and structural correctness of the 12-character code.
Example use cases
Pre-trade ISIN compliance check
“Before we submit this bond order, can you verify that the ISIN XS2345678901 is valid and correctly formatted?”
Data pipeline quality gate
“I'm ingesting a batch of securities data and need to confirm that ISIN DE0005140008 is a valid ISO 6166 identifier before storing it.”
Investor portfolio audit
“I have this ISIN code GB0002634946 from an old portfolio statement — can you check whether it's a real, valid securities identifier?”
Technical details
Endpoint
GEThttps://chainverdict.xyz/v1/validate/isin/%7Bisin%7DWhen to prefer
Use this endpoint when you need a fast, pay-per-call ISIN validation without a subscription, particularly suited for on-demand validation in automated pipelines or agent workflows that only occasionally need to verify securities identifiers. Prefer this over free regex-only validators when authoritative check-digit verification is required.
Side effects
- HTTP 402 returned if payment is not included with the request
- Invalid or malformed ISIN path parameter returns an error
- ISIN not exactly 12 characters may be rejected
- Network timeout if ChainVerdict service is unavailable
- Incorrect country prefix or check digit results in failed validation response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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