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IBANForge Swiss Clearing Number (IID) Lookup
x402
IBANForge Swiss Clearing Number (IID) Lookup is a paid API for AI agents from api.ibanforge.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-11).
Resolves a Swiss BC-Nummer / IID (1–5 digits) into full institution details including name, type, address, BIC, and payment-rail participation (SIC, RTGS CHF, Instant Payments CHF, euroSIC, LSV+/BDD) from the SIX BankMaster registry.
Price / call$0.003
Success—
StatusUnknown
How this service works
Resolve a Swiss BC-Nummer / IID (1-5 digits) into institution name, type, address, BIC, the full payment-rail participation (SIC, RTGS CHF, Instant Payments CHF, euroSIC, LSV+/BDD) and the QR-IID allocation. Backed by 1,100+ SIX BankMaster entries (refreshed monthly) — the canonical Swiss banking source. Production · server processing <5ms (network excluded — measure your own round trip on GET /ping) · 1,100+ SIX BankMaster entries, refreshed monthly · v1.4.3.
Output
Returns the institution's official name, institution type, full postal address, BIC/SWIFT code, participation flags for SIC, RTGS CHF, Instant Payments CHF, euroSIC, and LSV+/BDD payment rails, plus QR-IID allocation status — sourced from 1,100+ SIX BankMaster entries refreshed monthly.
Example use cases
Verify Swiss payee bank before wire
“I'm about to send a CHF payment and I have the beneficiary's BC-Nummer 8390 — can you resolve it to the bank name, address, and BIC, and confirm it participates in SIC so the transfer will go through?”
QR-bill payment rail validation
“We're building a QR-bill payment flow and need to check whether the bank with IID 245 has a QR-IID allocation and supports Instant Payments CHF.”
Swiss bank directory enrichment
“I have a list of Swiss clearing numbers starting with IID 4835 — look that one up and give me the full institution details including type, city, and all payment rail memberships so I can enrich our internal bank directory.”
Technical details
Endpoint
GEThttps://api.ibanforge.com/v1/ch/clearing/:iid?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a Swiss BC-Nummer or IID and need authoritative institution details and payment-rail membership from the canonical SIX BankMaster source. Prefer this over generic IBAN validation when you specifically need Swiss interbank clearing data, QR-IID allocation, or CHF-specific rail participation (SIC, RTGS CHF, Instant Payments CHF). For European IBANs or BIC-first lookups, use the sibling IBAN validation or BIC resolution endpoints instead.
Side effects
- IID not found (no matching entry in SIX BankMaster) — returns 404
- IID out of valid range (must be 1–5 digits) — returns 400 validation error
- Upstream SIX BankMaster data temporarily unavailable — returns 503
- Network timeout (server processing <5ms but round-trip latency varies — use GET /ping to measure)
- Payment rejected before call (x402 payment protocol failure)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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