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/99`. 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 offers a suite of pay-per-request APIs spanning data & analytics, AI & machine learning (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments — payment is handled entirely through the x402 protocol on the Base L2 network.
Note that while the endpoint is live and returns a valid 402 challenge, the specific KYC verification functionality (what inputs it expects, what verification data it returns) is not documented in any available material. The `/docs`, `/pricing`, and `/README` pages all resolve to a minimal "Connect wallet" prompt with no further technical documentation. Treat this listing as a stub until richer documentation becomes available.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Performing KYC checks without managing API key infrastructure
- —Integrating identity verification into agent-driven workflows
- —Adding compliance checks to Web3 or DeFi applications
Fit
Best for
- —Developers needing pay-per-call KYC verification without subscriptions
- —AI agents that can settle payments via x402 on Base
- —Projects requiring low-cost identity checks with no rate limits
Not for
- —High-volume KYC pipelines needing documented SLAs and support
- —Use cases requiring detailed documentation of input/output schemas before integration
- —Regulated environments that need audit trails and vendor compliance certifications
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/99 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is zero documentation on what the KYC verification endpoint actually accepts or returns. The docs, pricing, and README pages are all blank beyond a wallet-connect prompt. The specific path `/api/v1/kyc/verifications/99` is not listed among the site's advertised APIs, making its purpose unclear.
Warnings
- —No documentation available for this specific KYC endpoint — input schema and response format are unknown.
- —The path /api/v1/kyc/verifications/99 is not listed among the site's advertised API catalog, raising questions about whether it is a production endpoint or a test/demo route.
- —The /docs, /pricing, and /README pages contain no useful content beyond a 'Connect wallet' prompt.
- —KYC/identity verification is a regulated category — verify the provider's compliance posture before relying on this in production.
Citations
- —The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units.https://lowpaymentfee.com/api/v1/kyc/verifications/99
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/kyc/verifications/99
- —All listed APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —The docs, pricing, and README pages resolve to minimal 'Connect wallet' content with no technical documentation.https://lowpaymentfee.com/docs