x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transactions/249/receipt

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" receipt resource for transaction ID 249. It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML inference, finance/Web3, and infrastructure utility categories—all priced at $0.02 per call with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/transactions/249/receipt` accepts POST requests and is gated by the x402 payment protocol (version 1) on the Base network. Payment is settled in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a max amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The response MIME type is application/json. The payment timeout is 300 seconds.

The broader platform advertises 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—all at the same $0.02 price point. However, documentation pages beyond the landing page returned only a "Connect wallet" prompt with no further technical detail, so the actual response schema and payload structure for this receipt endpoint remain undocumented.

Capabilities

x402-paymentusdc-settlementbase-networktransaction-receiptpay-per-requestno-api-keyjson-response

Use cases

  • —Retrieving a transaction receipt after completing a payment
  • —Programmatic verification of transaction completion
  • —Agent-driven workflows requiring proof-of-payment documents
  • —Integrating pay-per-use receipt generation into dApps

Fit

Best for

  • —Developers needing low-cost, keyless API access on Base
  • —AI agents that can settle x402 payments autonomously
  • —Applications requiring per-call billing without subscriptions

Not for

  • —Users who need detailed API documentation or response schemas before integrating
  • —High-throughput batch processing where per-call fees accumulate significantly
  • —Users without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/249/receipt \
  -H "X-PAYMENT: <x402_payment_token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/249/receipt
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (returns 402 challenge correctly) and pricing is clear, but there is no documentation of request/response schemas, no OpenAPI spec, and all doc pages return only 'Connect wallet'. The specific purpose of this receipt endpoint beyond its name is unclear.

Warnings

  • —No response schema or example payloads documented anywhere
  • —All documentation pages (docs, api, pricing, README) return only 'Connect wallet' with no useful content
  • —The specific endpoint is for transaction ID 249 which may be a static/demo resource rather than a general-purpose API
  • —Platform legitimacy and actual data behind endpoints cannot be verified from available material

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 12:36:45Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/hXhMD5
Pay-per-call transaction receipt endpoint on Base via x402, $0.02/request in USDC. — Clawmart · Clawmart