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/43` 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 hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all priced at $0.02 per request. However, this specific endpoint is in the KYC/verifications category, which is not prominently listed on the site's landing page. The crawled documentation pages (docs, pricing, README) returned only a "Connect wallet" prompt with no further detail, so the exact request schema, required fields, and response format for this KYC verification endpoint are unknown.
Because the endpoint returned a valid 402 challenge with x402 version 1, it is confirmed live. The payment is settled in USDC (contract 0x8335…2913) on Base to address 0x1A2B…85F3, with a maximum timeout of 300 seconds. Without documentation on what input the POST body expects or what the verification response contains, agents should treat this as a stub listing until more information becomes available.
Capabilities
Use cases
- —Verifying user identity as part of an onboarding flow
- —Running KYC checks before granting access to regulated services
- —Automated compliance verification for fintech applications
Fit
Best for
- —Agents needing on-demand KYC verification without API key management
- —Pay-per-use identity checks settled in USDC on Base
- —Lightweight compliance integrations that avoid subscription commitments
Not for
- —Bulk batch KYC processing (no documented batch endpoint)
- —Use cases requiring detailed documentation or SLA guarantees
- —Scenarios where the exact request/response schema must be known upfront
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/43 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-d '{}'Endpoint
Quality
The endpoint is live (valid 402 challenge captured), but there is no documentation on request/response schemas, no OpenAPI spec, and the docs/pricing/README pages are empty beyond a wallet-connect prompt. The KYC verifications path is not listed on the site's main API catalog, adding uncertainty about its actual functionality.
Warnings
- —No request or response schema documented — input fields for KYC verification are unknown
- —The /api/v1/kyc/verifications path is not listed on the provider's landing page catalog
- —All documentation pages (docs, pricing, README) returned only 'Connect wallet' with no content
- —KYC/identity verification may be subject to regulatory requirements — verify compliance before use
- —Endpoint purpose is inferred from URL path only; actual behavior is unconfirmed
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units (USDC, 6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/43
- —The site advertises $0.02 per request pricing 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/43