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/54`. It uses the x402 payment protocol, accepting USDC on the Base network. The endpoint returns a 402 challenge requiring an X-PAYMENT header with exact-scheme payment. The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request.
The broader lowpaymentfee.com platform advertises a wide range of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. However, this specific listing is for the KYC verifications endpoint. The endpoint accepts POST requests and returns application/json responses. Payment is settled to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base, with a maximum timeout of 300 seconds.
Documentation on the site 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 endpoint expects or what it returns. The endpoint is live (402 challenge confirmed), but the actual functionality behind the paywall is unverifiable from available material.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Compliance checks for financial or regulated services
- —Automated KYC screening integrated into agent workflows
Fit
Best for
- —Developers needing pay-per-call KYC without API key management
- —Agents that can settle USDC payments on Base via x402
- —Low-volume or sporadic identity verification needs
Not for
- —High-volume KYC pipelines requiring SLA guarantees (no documented SLAs)
- —Users who need detailed documentation or schema before integrating
- —Fiat-only payment environments with no crypto settlement capability
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/54 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the KYC endpoint accepts or returns. No OpenAPI spec, no request/response examples, and all doc pages are empty. The endpoint path includes a hardcoded ID (54) with no explanation. Effectively a stub listing.
Warnings
- —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
- —No OpenAPI or request/response schema provided; input format and output structure are unknown.
- —The endpoint path includes a specific ID (/verifications/54) — unclear if this is parameterized or fixed.
- —KYC/identity verification is a regulated category; no information on data handling, compliance certifications, or privacy policies.
- —Actual service behind the paywall is unverifiable from crawl material.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/54
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/54
- —Platform advertises $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs