x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/claims/76

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol on the Base network. The specific resource `/api/v1/claims/76` is one of many endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, payable in USDC (USD Coin) on Base with no API keys, rate limits, or upfront commitments.

The x402 challenge confirms the endpoint is live and accepts exact-scheme payments of up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payments are sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a maximum timeout of 300 seconds. The endpoint accepts POST requests and returns application/json.

However, the specific functionality behind `/api/v1/claims/76` is not documented — the title is simply "Premium API Access" with no further schema, input parameters, or example responses available. The broader platform lists endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation, but this particular claims endpoint does not appear in any of those categories. Without documentation on what "claims/76" actually returns, agents should treat this as an opaque paid endpoint with unknown output semantics.

Capabilities

x402-paymentusdc-baseper-request-pricingjson-responseno-api-keypost-method

Use cases

  • —Accessing a paid API endpoint without needing to register or obtain API keys
  • —Demonstrating x402 payment protocol integration on the Base network
  • —Agent-driven pay-per-call workflows where USDC micropayments settle on-chain

Fit

Best for

  • —Developers experimenting with x402 payment-gated APIs
  • —Agents that can settle USDC payments on Base automatically
  • —Use cases requiring keyless, per-request API access

Not for

  • —Users who need detailed documentation or guaranteed SLAs before calling an endpoint
  • —Applications requiring free or subscription-based pricing models
  • —Anyone needing to understand the exact response schema before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/claims/76 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/claims/76
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base), but there is no documentation on what /api/v1/claims/76 actually does, no input/output schema, no examples, and the crawled docs/pricing/README pages all returned only 'Connect wallet' with no useful content. The specific endpoint doesn't appear in the platform's own listed API catalog.

Warnings

  • —The specific endpoint /api/v1/claims/76 is not listed among the platform's documented APIs — its purpose is unknown.
  • —No input parameters or output schema are documented anywhere.
  • —All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no substantive content.
  • —The functionality behind 'Premium API Access' is completely opaque — callers pay $0.02 without knowing what they receive.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:23:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/5rUDYw
x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required. — Clawmart · Clawmart