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/56` accepts POST requests and charges up to $0.02 per call in USDC on the Base network. Payment is handled inline via the x402 header mechanism — no API keys, accounts, or rate limits are required.
The hosting site lowpaymentfee.com offers a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all priced at $0.02 per request. However, the specific KYC verification endpoint's input schema and response format are not documented in the crawled material. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation on what fields to POST or what the verification response contains, integration requires experimentation or additional documentation not currently available.
The payment settles to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on Base. The maximum timeout for payment confirmation is 300 seconds.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Automated KYC checks for fintech or Web3 applications
- —Agent-driven compliance verification without pre-registration
- —Pay-per-use identity verification for low-volume or bursty workloads
Fit
Best for
- —Developers needing KYC without subscription commitments
- —Crypto-native applications that can pay with USDC on Base
- —Agents or bots that need programmatic identity verification
Not for
- —High-volume KYC pipelines where per-call pricing is expensive at scale
- —Use cases requiring detailed documentation or SLA guarantees
- —Applications that cannot settle payments on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/56 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, there is no documentation on the request body schema, response format, or what 'verifications/56' specifically verifies. The docs, pricing, and API pages on the site all render only a wallet-connect prompt with no useful content. This is effectively a stub listing.
Warnings
- —No documentation available for the KYC verification endpoint — request body fields and response schema are unknown.
- —The '/56' path segment suggests a specific verification resource ID, but its meaning is undocumented.
- —The site's docs, pricing, and API pages all return only a 'Connect wallet' prompt with no technical content.
- —KYC/identity verification is a regulated category — verify the provider's compliance posture before relying on this for production use.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/56
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 with 6 decimals, so 20000 base units = $0.02https://lowpaymentfee.com/api/v1/kyc/verifications/56
- —All APIs on the site are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Payment settles to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3https://lowpaymentfee.com/api/v1/kyc/verifications/56