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 via the x402 payment protocol. The specific resource `/api/v1/kyc/verifications/1` accepts POST requests and charges up to $0.02 per call, settled in USDC on the Base network. No API keys or rate limits are required — callers simply attach an x402 payment header to each request.
The broader lowpaymentfee.com platform offers a suite of pay-per-request APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and x402 payment flow on Base.
Documentation is extremely sparse — the docs, API, pricing, and README pages all render 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 verification endpoint expects or what it returns. The endpoint is live (returns a proper 402 challenge), but without documentation it is difficult to know what fields to POST or what the response payload looks like.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Compliance checks for financial or Web3 applications
- —Automated KYC screening integrated into agent workflows
Fit
Best for
- —Developers needing pay-per-call KYC verification without subscription commitments
- —Agent-based workflows that can settle payments in USDC on Base
- —Applications requiring keyless, instant-access identity verification
Not for
- —Users who need detailed API documentation or OpenAPI specs before integrating
- —High-volume KYC pipelines that need bulk pricing or SLAs
- —Scenarios requiring fiat-only payment rails
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/1 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is zero documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty. The KYC verification purpose is only inferred from the URL path; no concrete details about input fields or output format are available.
Warnings
- —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
- —No OpenAPI or request/response schema provided for the KYC verification endpoint
- —The specific purpose and data format of /api/v1/kyc/verifications/1 is inferred solely from the URL path
- —KYC/identity verification is a regulated category — verify the provider's compliance credentials independently
- —This endpoint is not listed on the provider's own homepage API catalog, raising questions about its status
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/1
- —All listed APIs are priced at $0.02/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/1
- —Docs, API, pricing, and README pages render only a 'Connect wallet' prompt with no technical contenthttps://lowpaymentfee.com/docs