x402basequality 0.25

x402-gated premium API endpoint on Base, pay-per-request with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/resource/29

What it does

This endpoint at `/api/resource/29` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. The specific resource behind `/api/resource/29` is labeled "Premium API Access" but its exact functionality is not documented — the site lists many endpoints under versioned paths (e.g., `/api/v1/analytics/metrics`, `/api/v2/ai/sentiment`) but `/api/resource/29` does not appear among them.

Payment is handled via the x402 protocol on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The 402 challenge specifies a maximum amount of 20,000 units (in USDC's 6-decimal representation, this equals $0.02), consistent with the site's advertised flat rate of $0.02 per request. No API keys are required; access is granted per-request upon payment. The endpoint accepts HTTP POST and returns `application/json`.

Documentation is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what data or service `/api/resource/29` actually provides. The endpoint is live (returns a proper 402 challenge), but without knowing what it does, callers must treat it as an opaque premium resource.

Capabilities

x402-paymentusdc-paymentbase-networkpay-per-requesthttp-postjson-response

Use cases

  • —Accessing a pay-per-request premium resource without API key registration
  • —Programmatic agent-driven API consumption via x402 payment protocol
  • —Integrating USDC micropayments into automated workflows

Fit

Best for

  • —Developers or agents wanting keyless, pay-per-call API access
  • —x402-compatible agents on the Base network
  • —Quick experimentation with micropayment-gated endpoints

Not for

  • —Users who need detailed documentation or guaranteed SLAs before calling
  • —Bulk or high-volume consumers who need subscription pricing
  • —Anyone needing to know exactly what the endpoint returns before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/resource/29
# Returns 402 with X-PAYMENT challenge; attach a valid x402 payment header to access the resource.

Endpoint

URLhttps://lowpaymentfee.com/api/resource/29
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid 402 challenge, but there is zero documentation on what /api/resource/29 actually does, no request/response schema, and the docs pages are empty. The listing is effectively a stub.

Warnings

  • —The specific endpoint /api/resource/29 is not listed among the site's documented APIs — its purpose is unknown.
  • —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no useful content.
  • —No OpenAPI schema, no request body schema, and no example responses are available.
  • —Cannot confirm what data or service is returned after payment.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:46:27Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/wJQJxm
x402-gated premium API endpoint on Base, pay-per-request with USDC. — Clawmart · Clawmart