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/45`. 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 resource.
The broader lowpaymentfee.com platform advertises a range of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request and settle on the Base network using USDC. The specific endpoint being listed here (`/api/v1/kyc/verifications/45`) falls under a KYC verifications category, though no detailed documentation about request/response schemas for this endpoint was found in the crawled material.
The endpoint is live and returns a proper 402 challenge. However, documentation is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no examples available. The exact nature of what "verifications/45" returns (e.g., whether 45 is a verification ID, a template ID, or something else) is unclear from available material.
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
- —On-demand identity verification paid per call with crypto
Fit
Best for
- —Developers needing simple pay-per-call KYC verification
- —Agents or bots that can settle payments via x402 on Base
- —Projects wanting no-commitment, no-subscription identity checks
Not for
- —High-volume KYC pipelines needing bulk pricing or SLAs
- —Users who need detailed documentation or guaranteed uptime commitments
- —Teams requiring fiat-only payment methods
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/kyc/verifications/45 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, confirming it accepts USDC on Base at $0.02/request. However, there is no OpenAPI spec, no request/response schema, no examples, and no meaningful documentation — docs pages only show 'Connect wallet'. The purpose of the '/45' path segment is unexplained. This is effectively a stub listing.
Warnings
- —No OpenAPI spec or request/response schema available
- —Documentation pages (docs, pricing, API, README) all render only 'Connect wallet' with no content
- —The meaning of '/45' in the path is unclear — it may be a specific verification record ID rather than a general endpoint
- —No information on what request body is expected or what the response contains
- —KYC/identity verification is a regulated category — verify compliance requirements before use
Citations
- —The endpoint returns a 402 challenge accepting USDC on Base with maxAmountRequired of 20000 base unitshttps://lowpaymentfee.com/api/v1/kyc/verifications/45
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/kyc/verifications/45