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

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-request APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). Each request costs $0.02 in USDC on the Base network, with no API keys, no rate limits, and no minimum commitments required.

The specific endpoint `/api/v1/generate/resource/79` is listed as "Premium API Access" and accepts HTTP POST requests. The x402 challenge confirms it is live, requesting up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. Settlement uses the "exact" scheme with a 300-second timeout.

Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no examples available. The exact functionality behind `resource/79` is unclear; the site's landing page groups endpoints into categories but does not list this specific resource path, so its precise behavior cannot be confirmed from available material.

Capabilities

x402-paymentusdc-basepay-per-requestno-api-keyhttp-post

Use cases

  • Programmatic access to utility or generation endpoints without managing API keys
  • Agent-driven workflows that pay per call using USDC on Base
  • Integrating low-cost API calls into Web3 applications

Fit

Best for

  • Developers wanting zero-signup, pay-per-use API access
  • AI agents with x402-compatible wallets on Base
  • Prototyping workflows that need cheap, keyless API calls

Not for

  • Users who need detailed API documentation or guaranteed SLAs
  • Applications requiring high-throughput with predictable billing (subscription model preferred)
  • Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/79 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The exact functionality of resource/79 is unknown. Docs pages return only a wallet-connect prompt.

Warnings

  • No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
  • No OpenAPI or schema describing request/response format for this endpoint
  • The specific resource path /api/v1/generate/resource/79 is not listed on the site's landing page; its exact functionality is unknown
  • No examples or sample responses available

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:21:51Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

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