KYC verification endpoint on Base, pay-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/27`. It uses the x402 payment protocol, accepting USDC on the Base network for per-request payment. The x402 challenge confirms the endpoint is live and returns a 402 Payment Required response with a max amount of 20,000 base units of USDC (i.e., $0.02 per request, since USDC uses 6 decimals).
The broader lowpaymentfee.com platform advertises a wide catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request. The platform emphasizes no API keys, no rate limits, and instant access. Payment is settled on-chain via USDC on Base to a specified wallet address.
However, documentation for this specific KYC verification endpoint is essentially absent. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what input the KYC endpoint expects or what it returns. The endpoint path includes an ID (`/27`), but it is unclear whether this is a resource identifier, a verification type, or something else. Users should expect to experiment or contact the provider for integration guidance.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Performing KYC checks without managing API keys or subscriptions
- —Integrating compliance verification into agent-driven workflows
- —On-demand identity verification with crypto-native payment
Fit
Best for
- —Developers needing pay-per-call KYC verification without signup
- —Agent workflows requiring programmatic identity checks
- —Projects already using USDC on Base for payments
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —Bulk KYC processing where per-call pricing may not be cost-effective
- —Regulated environments requiring auditable vendor compliance certifications
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/27 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The x402 challenge is live and confirms pricing and network, but there is zero documentation for this specific KYC endpoint — no schema, no request/response examples, no description of what verification ID 27 means. The crawled pages beyond the homepage returned only wallet-connect prompts. This is effectively a stub listing.
Warnings
- —No OpenAPI schema or endpoint documentation available
- —No request or response examples; input format is unknown
- —The path segment '/27' is unexplained — unclear if it's a fixed resource or variable
- —Docs, API, pricing, and README pages all returned only 'Connect wallet' with no content
- —KYC/identity verification is a regulated category — no compliance certifications or data handling policies are documented
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC on Base at maxAmountRequired 20000 (=$0.02)https://lowpaymentfee.com/api/v1/kyc/verifications/27
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/27