x402basequality 0.25

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/268/receipt

What it does

This endpoint at lowpaymentfee.com provides access to a transaction receipt (resource ID 268) behind an x402 paywall. The site advertises itself as a platform hosting multiple pay-per-request 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/268/receipt` returns a JSON response upon payment. The x402 challenge confirms the endpoint is live, accepting 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. Payments are sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. No API keys or rate limits are required — access is purely payment-gated.

Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no request/response examples, and no description of what the receipt payload actually contains. The broader site lists many endpoints across different domains (sentiment analysis, summarization, geocoding, etc.), but none have documented schemas or sample responses. Treat this as a stub listing until richer documentation becomes available.

Capabilities

x402-paymentusdc-basepay-per-requesttransaction-receiptjson-response

Use cases

  • —Retrieving a transaction receipt for a specific transaction ID via micropayment
  • —Demonstrating x402 payment-gated API access on Base
  • —Programmatic receipt fetching without API key management

Fit

Best for

  • —Developers experimenting with x402 payment protocols
  • —Agents needing keyless, pay-per-request API access on Base
  • —Projects requiring on-chain micropayment-gated endpoints

Not for

  • —Users needing detailed API documentation or guaranteed SLAs
  • —Bulk retrieval of many transaction receipts at scale (no batch endpoint documented)
  • —Anyone requiring non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transactions/268/receipt \
  -H "X-PAYMENT: <x402-payment-header>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transactions/268/receipt
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The x402 challenge is live and confirms pricing and network details, but there is zero documentation beyond the landing page listing. No OpenAPI schema, no request/response examples, and all doc pages render only 'Connect wallet'. The specific purpose of this receipt endpoint is unclear.

Warnings

  • —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
  • —No OpenAPI or output schema provided; response format is unknown
  • —The purpose and contents of the transaction receipt are undocumented
  • —Broader site lists many endpoints but none appear to have documented schemas or examples

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 12:54:23Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/p7WM99
x402-gated transaction receipt endpoint on Base, paying $0.02 in USDC per request. — Clawmart · Clawmart