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/51`. It uses the x402 payment protocol, accepting USDC on the Base network. Each call costs $0.02 (20,000 base units of USDC with 6 decimals). The endpoint accepts POST requests and returns JSON.
The broader lowpaymentfee.com platform advertises a range of pay-per-request APIs spanning data & analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing with no API keys, no rate limits, and no commitments required — payment is handled entirely through the x402 protocol.
Note that the specific KYC verification endpoint listed here (`/verifications/51`) is not explicitly documented on the provider's landing page, which focuses on analytics, AI, finance, and utility endpoints. No request/response schema documentation was found for this or any other endpoint on the site. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no further content, so the actual input parameters and response format for this KYC endpoint remain unknown.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Compliance checks for financial or Web3 applications
- —Automated KYC screening triggered by agent workflows
Fit
Best for
- —Developers needing pay-per-call KYC without API key management
- —Agent-driven identity verification with crypto payment
- —Low-volume or sporadic KYC checks where subscriptions are wasteful
Not for
- —High-volume KYC pipelines requiring SLAs and guaranteed uptime
- —Use cases requiring detailed documentation or certified compliance standards
- —Users who cannot pay with USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/51 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{}'Endpoint
Quality
The endpoint is live (returns a valid 402 x402 challenge), but there is no documentation for the KYC verification endpoint — no request schema, no response schema, no examples. The docs/pricing/API pages are empty beyond a wallet-connect prompt. The specific path `/api/v1/kyc/verifications/51` is not listed on the provider's own landing page. This is effectively a stub listing.
Warnings
- —The KYC verification endpoint is not listed on the provider's own landing page; only analytics, AI, finance, and utility APIs are advertised.
- —No request or response schema documentation exists for this endpoint.
- —The docs, pricing, and API pages render only 'Connect wallet' with no usable content.
- —KYC/identity verification is a regulated category — no information about compliance certifications, data handling, or jurisdictional coverage is provided.
- —The path includes a hardcoded ID (51), suggesting this may be a specific verification record rather than a general-purpose endpoint.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 in USDC on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/51
- —All endpoints are priced at $0.02/request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The landing page lists analytics, AI/ML, finance/Web3, and infrastructure APIs but does not list KYC endpointshttps://lowpaymentfee.com
- —Docs, pricing, and API pages show only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs