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 via the x402 payment protocol. The specific resource `/api/v1/kyc/verifications/11` 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 — no API keys, accounts, or rate limits are required.
The provider's landing page advertises a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. However, the specific KYC verification endpoint is not listed on the homepage, and no documentation, request/response schemas, or usage examples are available from the crawled pages (docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content). As a result, the exact input parameters and response format for this KYC verification endpoint are unknown.
The endpoint is live and returns a valid x402 challenge (HTTP 402) with USDC (contract 0x8335…2913) on Base as the accepted payment asset. The maximum amount required is 20,000 base units, which at 6 decimals equals $0.02.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Automated KYC checks in fintech or Web3 applications
- —Agent-driven compliance verification without managing API keys
Fit
Best for
- —Developers needing pay-per-call KYC without subscription commitments
- —AI agents that can settle payments via x402 on Base
- —Web3 applications requiring inline identity verification
Not for
- —Bulk KYC processing where batch pricing would be more economical
- —Use cases requiring detailed documentation or SLA guarantees before integration
- —Environments that cannot settle USDC payments on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/11 \
-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 no documentation, no request/response schema, and no examples available. The KYC verification endpoint isn't even listed on the provider's own homepage. The actual functionality behind this endpoint is entirely opaque.
Warnings
- —No documentation available — docs, pricing, API, and README pages all return only a 'Connect wallet' prompt with no content.
- —The /api/v1/kyc/verifications/11 endpoint is not listed among the provider's advertised APIs on the homepage.
- —Request and response schemas are completely unknown; input parameters must be guessed.
- —KYC/identity verification is a regulated category — verify the provider's compliance posture before relying on this in production.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/11
- —The provider advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/11