x402basequality 0.25

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/generate/resource/35

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 endpoint costs $0.02 per request, settled in USDC on the Base network with no API keys, no rate limits, and no commitments.

The specific resource probed (/api/v1/generate/resource/35) is listed under "Premium API Access" and returned a valid x402 challenge with maxAmountRequired of 20,000 base units of USDC (0.02 USDC = $0.02). Payment is made via the x402 exact scheme to the specified wallet address. The endpoint accepts HTTP POST requests and returns application/json responses.

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 actual functionality behind "/api/v1/generate/resource/35" is unclear beyond the generic label "Premium API Access." Without documentation or example payloads, agents will need to experiment to discover the expected input format and output structure.

Capabilities

x402-paymentusdc-basepay-per-requestjson-apino-api-keyhttp-post

Use cases

  • —Programmatic access to a generic premium API endpoint paid per-call with USDC on Base
  • —Agent-driven workflows that need keyless, pay-as-you-go API access
  • —Testing x402 payment protocol integrations against a live endpoint

Fit

Best for

  • —Developers exploring x402 payment protocol integrations
  • —Agents needing keyless pay-per-request API access on Base
  • —Low-cost per-call usage without subscriptions or rate limits

Not for

  • —Users who need well-documented API contracts and schemas
  • —Production workloads requiring SLA guarantees or support
  • —Anyone needing free or non-crypto payment options

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/35 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/35
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it accepts payments. However, there is no OpenAPI spec, no documentation beyond a wallet-connect prompt, no request/response schema, and no examples. The specific functionality of 'resource/35' is entirely undocumented. This is effectively a stub listing.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet'
  • —No OpenAPI or schema definition found for any endpoint
  • —The specific purpose of /api/v1/generate/resource/35 ('Premium API Access') is not explained anywhere
  • —No request body schema or response schema documented — callers must guess the expected input format
  • —The broader site lists many endpoints but none have documented contracts

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:00:37Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/hkCP5Z
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart