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/49` 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 host 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. This particular endpoint falls under a KYC/verification category that is not prominently listed on the landing page but is live and returning a valid 402 challenge. The payment is settled in USDC (contract 0x8335…2913) on Base to the payee address 0x1A2B…85F3, with a maximum timeout of 300 seconds.
Because the crawled documentation pages (docs, pricing, README) all returned only a "Connect wallet" prompt with no substantive content, there is no schema documentation, example request/response, or detailed description of what the KYC verification endpoint actually returns. The endpoint is confirmed live via its 402 challenge, but the exact input fields and output format remain unknown.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Performing KYC checks without managing API key subscriptions
- —Integrating compliance verification into agent-driven workflows
Fit
Best for
- —Agents or apps needing on-demand KYC verification with crypto payment
- —Developers who want keyless, pay-per-use identity checks on Base
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —High-volume KYC pipelines where per-request pricing may not be cost-effective
- —Regulated environments requiring auditable vendor compliance certifications
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/49 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{}'Endpoint
Quality
The endpoint is live (valid 402 challenge captured), but there is zero documentation on request/response schemas, no OpenAPI spec, and all doc pages return only a wallet-connect prompt. The KYC verification path is not listed on the landing page, making its purpose and data format entirely opaque. This is effectively a stub listing.
Warnings
- —No documentation available — all doc/pricing/README pages return only 'Connect wallet' with no content.
- —The /api/v1/kyc/verifications/49 path is not listed among the site's advertised APIs; its purpose and expected input/output are unknown.
- —KYC/identity verification is a regulated category — callers should verify the provider's compliance credentials independently.
- —Request and response schemas are completely undocumented; integration requires trial-and-error.
Citations
- —Endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base network.https://lowpaymentfee.com/api/v1/kyc/verifications/49
- —Site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.https://lowpaymentfee.com/api/v1/kyc/verifications/49