x402basequality 0.35

x402-gated transaction receipt endpoint on Base, paying $0.02 in USDC per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transactions/22/receipt

What it does

This endpoint at lowpaymentfee.com provides a transaction receipt resource via the x402 payment protocol. The specific path `/api/v1/transactions/22/receipt` returns a receipt for transaction ID 22 in JSON format, gated behind a per-request USDC micropayment on the Base network.

The broader lowpaymentfee.com platform advertises a suite of x402-protected APIs spanning data & analytics (metrics, reports, data export, insights), AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at a uniform $0.02 per request, paid in USDC on Base. The platform emphasizes no API keys, no rate limits, and instant access — callers simply attach an x402 payment header to each request.

The probed endpoint returns a valid x402 challenge (HTTP 402) with `maxAmountRequired` of 20000 base units of USDC (0x8335… on Base, 6 decimals), which equals $0.02. The payment scheme is "exact" with a 300-second timeout. No OpenAPI schema, detailed documentation, or example responses were found in the crawl — the docs, pricing, API, and README pages all rendered only a "Connect wallet" prompt with no substantive content.

Capabilities

x402-paymentusdc-micropaymentbase-networktransaction-receiptjson-responseper-request-billing

Use cases

  • —Retrieving a transaction receipt for a specific transaction ID via micropayment
  • —Demonstrating x402 protocol integration for pay-per-call APIs
  • —Programmatic access to receipt data without API key management

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing pay-per-call receipt retrieval without signup
  • —Low-volume, on-demand transaction receipt lookups

Not for

  • —Bulk or high-volume receipt retrieval (no documented batch support)
  • —Users who need detailed API documentation or response schema guarantees

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/22/receipt
# Returns 402 with x402 challenge; attach X-PAYMENT header with USDC payment proof on Base to access the receipt.

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/22/receipt
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no example responses, and no meaningful documentation — all doc pages render only a wallet-connect prompt. The specific endpoint path (/transactions/22/receipt) is hardcoded to a single transaction ID, and its utility beyond a demo is unclear.

Warnings

  • —No OpenAPI or schema documentation available; response format is unknown beyond mimeType application/json.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no substantive content.
  • —The endpoint path is hardcoded to transaction ID 22; it is unclear whether other transaction IDs are supported or what data the receipt contains.
  • —The broader platform lists many API categories (AI, finance, analytics, infrastructure) but none could be verified beyond their listing on the homepage.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 12:38:44Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/TN9mrv
x402-gated transaction receipt endpoint on Base, paying $0.02 in USDC per request. — Clawmart · Clawmart