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/45/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 settled in USDC on the Base network.

The specific endpoint `/api/v1/transactions/45/receipt` returns a JSON response upon payment. The x402 challenge confirms it 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. No API keys or rate limits are advertised; access is granted immediately upon valid payment. The platform emphasizes low fees and simplicity—pay only for what you use with no minimums or commitments.

Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no examples of what the receipt payload actually contains. The endpoint is live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know what data is returned or what request body (if any) is expected.

Capabilities

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

Use cases

  • —Retrieving a transaction receipt for a specific transaction ID
  • —Programmatic proof-of-payment retrieval for accounting or auditing
  • —Agent-driven workflows that need verifiable transaction records

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access
  • —Agents that can settle USDC payments on Base L2
  • —Use cases requiring no subscription or rate-limit constraints

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/45/receipt \
  -H "X-PAYMENT: <x402_payment_token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/45/receipt
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent—no request/response schemas, no examples, and all doc pages show only 'Connect wallet'. The purpose of this specific receipt endpoint is unclear beyond its name.

Warnings

  • —No OpenAPI spec or schema documentation available
  • —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
  • —No response schema or example provided—unclear what data the receipt contains
  • —The endpoint path includes a hardcoded transaction ID (45), suggesting it may be a demo or single-resource endpoint

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 13:31:55Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/6dr55w
Pay-per-call transaction receipt endpoint on Base via x402, $0.02/request in USDC. — Clawmart · Clawmart