x402basequality 0.30

Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/wire/159

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The site hosts a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance & Web3 data, and infrastructure utilities — all priced at $0.02 per request, settled in USDC on the Base network. No API keys, rate limits, or upfront commitments are required; callers simply attach an x402 payment header to each request.

The specific endpoint `/api/v1/wire/159` is listed as "Premium API Access" with a max amount of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals). The x402 challenge confirms the endpoint is live, accepts POST requests, and settles payments to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the USDC contract on Base (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The payment timeout is 300 seconds.

Documentation is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what `/api/v1/wire/159` actually returns or what input it expects beyond a POST body. The endpoint's purpose beyond the generic label "Premium API Access" is unknown. Prospective callers should be aware that without documentation, the actual functionality and expected input format must be discovered experimentally.

Capabilities

x402-paymentusdc-basepay-per-callpost-endpointno-api-key

Use cases

  • —Programmatic access to a pay-per-call API without needing API keys or subscriptions
  • —Agent-driven workflows that settle per-request costs in USDC on Base
  • —Exploring x402 protocol integration with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless, pay-as-you-go API access
  • —Low-cost per-request API consumption on Base

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —Applications requiring well-defined request/response schemas before integration
  • —High-throughput use cases where per-call crypto settlement adds unacceptable latency

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wire/159 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/159
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and confirms pricing and payment details, but there is zero documentation on what this endpoint actually does, no OpenAPI schema, no request/response examples, and the docs pages are empty. The listing is effectively a stub with only payment metadata available.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or input/output schema provided; the actual functionality of /api/v1/wire/159 is unknown
  • —The generic label 'Premium API Access' does not describe what the endpoint returns
  • —Cannot verify what data or service is delivered after payment

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:49:03Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/MY8zwr
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart