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/53`. 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 substantive 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 resource ID "53" in the path is unexplained. Prospective users should expect to experiment or contact the provider for integration details.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Programmatic KYC checks for fintech or Web3 applications
- —Agent-driven compliance verification with per-call crypto payment
Fit
Best for
- —Developers needing pay-per-call KYC without subscription commitments
- —Web3 applications that can settle payments in USDC on Base
- —Agents or bots that need keyless, instant-access identity verification
Not for
- —Teams requiring detailed API documentation and integration guides before adoption
- —High-volume KYC pipelines needing bulk pricing or SLAs
- —Users who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/53 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>" \
-d '{}'Endpoint
Quality
The endpoint is live (returns a valid 402 x402 challenge), but there is no OpenAPI schema, no request/response examples, and no meaningful documentation — docs pages only show 'Connect wallet'. The purpose of the specific resource ID '53' is unknown, and the KYC verification category is not mentioned anywhere on the site's landing page. This is effectively a stub listing.
Warnings
- —No documentation available — all doc/API/pricing/README pages render only 'Connect wallet'
- —No OpenAPI or input/output schema provided; request body and response format are unknown
- —The KYC verification endpoint (/api/v1/kyc/verifications/53) is not listed among the site's advertised APIs
- —The resource ID '53' in the path is unexplained
- —KYC/identity verification is a regulated category — verify the provider's compliance credentials before use
- —No information on data handling, privacy policy, or regulatory certifications
Citations
- —The endpoint returns a 402 x402 challenge with USDC on Base network, maxAmountRequired 20000 base unitshttps://lowpaymentfee.com/api/v1/kyc/verifications/53
- —All 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 contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/kyc/verifications/53