x402basequality 0.35

Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transactions/222/receipt

What it does

This endpoint at lowpaymentfee.com provides a transaction receipt retrieval service accessible via the x402 payment protocol. It is part of a broader platform offering multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities—all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/transactions/222/receipt` accepts POST requests and returns a JSON response upon successful payment. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The x402 challenge confirms the endpoint is live and discoverable.

Documentation on the site is extremely sparse—most pages beyond the landing page only show a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the receipt payload actually contains. The endpoint path suggests it retrieves a receipt for a specific transaction (ID 222), but it is unclear whether this is a demo/fixed resource or parameterized.

Capabilities

x402-paymentusdc-settlementbase-networktransaction-receiptpay-per-callno-api-key

Use cases

  • —Retrieving transaction receipts programmatically after on-chain or off-chain payments
  • —Integrating pay-per-call receipt generation into automated billing workflows
  • —Demonstrating x402 protocol payment flows for agent-to-agent commerce

Fit

Best for

  • —Developers experimenting with x402 payment protocol integrations
  • —Agents needing low-cost, keyless API access on Base network
  • —Prototyping micropayment-gated API services

Not for

  • —Production systems requiring detailed API documentation and SLAs
  • —Use cases needing bulk/batch transaction receipt retrieval at scale
  • —Users without USDC on Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/222/receipt \
  -H "X-PAYMENT: <x402_payment_token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/222/receipt
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid 402 challenge with clear pricing and network details, but there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page, and the actual functionality of the receipt endpoint is unclear.

Warnings

  • —No OpenAPI or schema documentation available
  • —All documentation pages beyond the landing page return only 'Connect wallet' with no content
  • —Unclear whether /transactions/222/receipt is a fixed demo resource or parameterized
  • —No example responses or error handling documentation

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 12:33:05Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/6Lg7mX
Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request. — Clawmart · Clawmart