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/41` accepts POST requests and charges up to $0.02 per call 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 advertises 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 are listed at $0.02 per request and settle on Base using USDC. However, the specific endpoint being listed here is a KYC verification resource, which is not prominently featured on the site's landing page among the advertised categories.
Documentation is extremely sparse — the /docs, /pricing, /api, 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 endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual functionality behind the paywall is unverifiable from available materials.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Performing KYC checks without managing API key infrastructure
- —Integrating compliance verification into agent-driven workflows
Fit
Best for
- —Developers needing simple pay-per-call KYC verification
- —Agent workflows requiring on-demand identity checks without subscriptions
- —Projects already using USDC on Base for payments
Not for
- —Teams needing detailed documentation or SLAs before integration
- —High-volume KYC pipelines requiring bulk pricing or guaranteed throughput
- —Regulated environments requiring auditable vendor compliance certifications
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/41 \
-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 request format, response schema, or what the KYC verification actually does. The /docs and related pages are empty. The KYC endpoint isn't even listed on the site's landing page. This is effectively a stub listing.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content.
- —No request or response schema provided; it is unknown what input the endpoint expects or what it returns.
- —The KYC verification endpoint is not listed among the advertised APIs on the landing page, raising questions about its status.
- —KYC/identity verification is a regulated category — no compliance certifications or data handling policies are documented.
- —Endpoint functionality behind the paywall is completely unverifiable from available materials.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/41
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/41
- —All listed APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs