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 at `/api/v1/kyc/verifications/88`. It uses the x402 payment protocol, accepting USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to access the endpoint.
The broader lowpaymentfee.com platform offers a range of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance and crypto market data, and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and settle on the Base network via USDC. The specific endpoint listed here (`/api/v1/kyc/verifications/88`) is labeled "Premium API Access" and falls under a KYC verifications path, though detailed documentation on the request body schema, required fields, or response format is not available from the crawled material.
The endpoint is live and returns a proper 402 challenge when called without payment. The site's docs, pricing, and API pages appear to require wallet connection and did not yield substantive documentation during the crawl, so the exact input/output contract for this KYC verification endpoint remains unclear.
Capabilities
Use cases
- —Verifying customer identity as part of onboarding flows
- —Performing KYC checks without managing API key infrastructure
- —Integrating compliance verification into agent-driven workflows
- —Adding identity verification to Web3 or DeFi applications
Fit
Best for
- —Developers needing simple pay-per-call KYC verification
- —Agent workflows that can settle payments via x402 on Base
- —Projects that want no-commitment, no-subscription identity checks
Not for
- —High-volume KYC pipelines needing bulk pricing or SLAs
- —Use cases requiring detailed documentation or guaranteed uptime commitments
- —Users who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/88 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming it accepts USDC on Base at $0.02/call. However, there is no documentation on request body schema, response format, or what the KYC verification actually checks. The docs/pricing/API pages all returned only a 'Connect wallet' prompt with no useful content. The endpoint path includes a hardcoded ID (88) with no explanation.
Warnings
- —No documentation available — docs, pricing, and API pages require wallet connection and returned no content
- —Request and response schemas are unknown; the input/output contract cannot be verified
- —The endpoint path includes a specific ID (/88) with no explanation of what it references
- —The 'Premium API Access' label is generic and does not describe the actual service
- —KYC/identity verification is a regulated category — verify the provider's compliance credentials independently
Citations
- —The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base networkhttps://lowpaymentfee.com/api/v1/kyc/verifications/88
- —maxAmountRequired is 20000 base units of USDC (USD Coin, 6 decimals) = $0.02https://lowpaymentfee.com/api/v1/kyc/verifications/88
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The site lists APIs across data/analytics, AI/ML, finance/Web3, and infrastructure categorieshttps://lowpaymentfee.com