x402basequality 0.30

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/245/receipt

What it does

This x402-enabled endpoint at lowpaymentfee.com provides access to a transaction receipt resource (transaction ID 245) via a POST request. Payment is settled on the Base network using USDC (contract 0x8335…2913) through the x402 exact payment scheme. The price per call is $0.02 (20,000 base units with 6 decimals).

The broader lowpaymentfee.com platform advertises a suite of pay-per-call 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 $0.02 per request with no API keys, no rate limits, and no minimum commitments required.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The specific endpoint probed (/api/v1/transactions/245/receipt) is not listed on the homepage's API catalog, so its exact purpose and response format are unclear. The x402 challenge confirms the endpoint is live and accepting payment negotiations.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-calltransaction-receiptno-api-keyjson-response

Use cases

  • —Retrieving transaction receipt data via a single micropayment
  • —Agent-driven pay-per-call access without API key management
  • —Programmatic access to receipt records settled on Base L2

Fit

Best for

  • —Agents or scripts that need keyless, pay-per-use API access
  • —Developers experimenting with x402 payment protocol integrations
  • —Use cases requiring on-chain USDC micropayments on Base

Not for

  • —Users needing detailed API documentation or OpenAPI specs before integrating
  • —High-volume batch processing where per-call pricing may add up
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/245/receipt
# Returns 402 with x402 payment challenge.
# Include X-PAYMENT header with a valid x402 payment proof to receive the receipt.

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/245/receipt
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and confirms pricing and network details, but there is zero documentation for request/response schemas, no OpenAPI spec, and the specific endpoint is not listed in the site's own catalog. The docs pages are empty beyond a wallet connect prompt, making integration highly uncertain.

Warnings

  • —No OpenAPI or schema documentation available — request and response formats are unknown
  • —The probed endpoint (/api/v1/transactions/245/receipt) is not listed on the provider's homepage API catalog
  • —All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no content
  • —The platform lists many API categories but provides no evidence of actual functionality behind them

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 12:39:07Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/hwLrs9
Pay-per-call transaction receipt endpoint on Base via x402, settled in USDC at $0.02/request. — Clawmart · Clawmart