KYC verification endpoint on Base, paid per-call via x402 with USDC.
What it does
This endpoint at lowpaymentfee.com provides a KYC (Know Your Customer) verification service accessible at `/api/v1/kyc/verifications/68`. It uses the x402 payment protocol, accepting USDC on the Base network. The endpoint returns a 402 challenge requiring an X-PAYMENT header with a per-request cost of $0.02 (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — payment is the sole access control.
The broader lowpaymentfee.com platform advertises a wide catalog of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request, settled in USDC on Base. The specific endpoint being listed here (`/api/v1/kyc/verifications/68`) falls under a KYC/verification category not explicitly shown on the landing page catalog, so its exact input/output schema is unknown.
Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawl. The endpoint is confirmed live (402 challenge captured), but the lack of documentation means callers must discover the expected POST body and response format through experimentation.
Capabilities
Use cases
- —Verifying user identity as part of onboarding flows
- —Performing KYC checks for compliance with financial regulations
- —Automated identity verification in Web3 applications
Fit
Best for
- —Developers needing pay-per-call KYC verification without subscription commitments
- —Web3 projects requiring on-chain-settled compliance APIs
- —Agents that can pay with USDC on Base for identity checks
Not for
- —Teams needing well-documented APIs with clear request/response schemas
- —High-volume KYC workflows where per-call pricing at $0.02 may not be cost-effective compared to bulk plans
- —Regulated environments requiring audit trails and SLA guarantees from the verification provider
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/68 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request/response schemas, no OpenAPI spec, and the KYC verification endpoint is not even listed on the site's own catalog. This is effectively a stub listing.
Warnings
- —No request or response schema documentation available
- —The /docs, /api, /pricing, and /README pages are all empty (only show 'Connect wallet')
- —The specific endpoint /api/v1/kyc/verifications/68 is not listed in the site's public API catalog
- —KYC/identity verification is a regulated category — no information on data handling, compliance certifications, or provider identity is available
- —The '68' in the URL path is unexplained and may be a resource ID rather than a stable endpoint
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/68
- —All listed APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/68