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/40`. It is part of a broader platform offering dozens of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.
The specific endpoint probed (`/api/v1/kyc/verifications/40`) is live and returns a valid x402 challenge. The maximum amount required per request is 20,000 base units of USDC (6 decimals), which equals $0.02 USD — consistent with the platform's uniform $0.02/request pricing. Payment is made via the x402 "exact" scheme to a specified wallet address. No API keys are required; access is granted immediately upon payment. The platform advertises no rate limits and no minimum commitments.
Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive 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 beyond a JSON MIME type. The endpoint path suggests it may verify a specific entity (ID 40), but this is speculative. The lack of documentation makes it difficult to assess the actual functionality or reliability of this service.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Automated KYC checks in fintech or crypto applications
- —Compliance verification for regulated services
Fit
Best for
- —Developers needing simple pay-per-call KYC verification
- —Crypto-native applications that can settle payments in USDC on Base
- —Prototyping identity verification without API key management
Not for
- —Production KYC workflows requiring documented SLAs and compliance certifications
- —Teams needing detailed API documentation and integration guides
- —Applications requiring non-crypto payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/40 \
-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 effectively zero documentation — no OpenAPI schema, no request/response examples, no description of what the KYC endpoint actually does or accepts. The docs pages are empty. This is essentially 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 specific function of '/api/v1/kyc/verifications/40' (e.g., what ID 40 refers to) is unclear.
- —KYC/identity verification is a regulated category — no compliance certifications or data handling policies are documented.
- —This endpoint is not listed on the provider's homepage among their advertised APIs.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/40
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/40