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/69`. It uses the x402 payment protocol, accepting USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to access the endpoint.
The broader lowpaymentfee.com platform advertises a range of pay-per-call 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 are listed at $0.02 per request and settle on the Base network using USDC.
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 schema, no request/response examples, and no description of what input the KYC verification endpoint expects or what it returns. The specific semantics of the `/69` path segment (whether it's a resource ID, a verification type, etc.) are not documented. Prospective users should be aware that the actual functionality behind this endpoint is unverified beyond the x402 challenge.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Integrating KYC checks into Web3 dApps without managing API keys
- —Automating compliance verification with per-call USDC payments
Fit
Best for
- —Developers needing pay-per-use KYC without subscription commitments
- —Web3 applications that can settle payments on Base with USDC
- —Agents or bots that need programmatic identity verification via x402
Not for
- —Teams requiring detailed API documentation and SLAs before integration
- —High-volume KYC pipelines where per-call pricing may not be cost-effective
- —Users who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/69 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>" \
-d '{}'Endpoint
Quality
The x402 challenge is live and confirms pricing and network, but there is zero documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty. The actual functionality of this KYC endpoint is unverifiable from available material.
Warnings
- —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
- —No OpenAPI or request/response schema provided
- —The specific meaning of '/verifications/69' is undocumented
- —Actual KYC verification functionality is unverified — only the payment challenge is confirmed
- —This endpoint may handle regulated personal data (KYC/identity); compliance and data handling policies are not documented
Citations
- —The endpoint returns a 402 x402 challenge accepting USDC on Base with maxAmountRequired of 20000 base unitshttps://lowpaymentfee.com/api/v1/kyc/verifications/69
- —All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/69
- —Docs, API, pricing, and README pages render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs