x402basequality 0.30

Pay-per-call API suite on Base (USDC) covering data, AI, finance, and utility endpoints at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/generate/resource/25

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad collection of endpoints spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are paid per-request using USDC on the Base network via the x402 protocol — no API keys, no rate limits, and no subscriptions required.

The specific endpoint at `/api/v1/generate/resource/25` is listed as "Premium API Access" and accepts POST requests. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per call (USDC uses 6 decimals). The broader platform advertises a uniform $0.02/request pricing across all its endpoints, which include sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, conversion, and data export.

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 spec, no request/response schema documentation, and no usage examples available from the crawled material. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation it is unclear what request body this particular resource expects or what it returns.

Capabilities

x402-paymentper-request-billingusdc-basepost-endpointno-api-keyno-rate-limits

Use cases

  • —Accessing utility or generation endpoints without needing API key registration
  • —Paying per-request with USDC on Base for lightweight API calls
  • —Integrating x402-compatible agents with a low-cost general-purpose API

Fit

Best for

  • —Developers wanting zero-signup, pay-as-you-go API access
  • —x402-compatible AI agents that need cheap utility endpoints
  • —Prototyping workflows that require on-demand API calls settled in crypto

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —Production systems requiring well-documented request/response schemas
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/25 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/25
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but documentation is effectively nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no examples. It is impossible to determine what this specific resource does beyond its title 'Premium API Access'.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all render only 'Connect wallet'
  • —No OpenAPI or schema definition found for any endpoint
  • —The purpose and expected input/output of /api/v1/generate/resource/25 is unknown
  • —The broader platform lists many endpoints but none have documented schemas

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:35:19Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/eTNte9
Pay-per-call API suite on Base (USDC) covering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart