x402basequality 0.35

x402-gated premium API access on Base, paid per-request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/generate/resource/123

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" behind an x402 payment challenge. The provider operates a broad suite of pay-per-call 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). All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, no rate limits, and no minimum commitments.

The specific endpoint `/api/v1/generate/resource/123` is listed under the "Premium API Access" label. The x402 challenge confirms it accepts POST requests, settles in USDC (contract 0x8335…2913) on Base via the "exact" payment scheme, and requires a maximum of 20,000 units (which at 6 USDC decimals equals $0.02). The response MIME type is application/json. A 300-second payment timeout is configured.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no usage examples available. The exact functionality behind the `/api/v1/generate/resource/123` path is unclear; the name suggests a generation or resource-creation endpoint, but no input parameters or output fields are documented.

Capabilities

x402-paymentusdc-on-baseper-request-billingjson-responsepost-methodno-api-keyno-rate-limit

Use cases

  • —Programmatic access to a generation/resource endpoint with per-call USDC micropayments
  • —Agent-driven API consumption without pre-registration or API key management
  • —Integrating pay-as-you-go API calls into Web3 workflows on Base

Fit

Best for

  • —Developers wanting zero-signup, pay-per-use API access
  • —AI agents that can settle x402 payments in USDC on Base
  • —Projects needing low-friction API access without rate limits or subscriptions

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Applications requiring fiat-only payment rails with no crypto involvement

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/123 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Example

Request

{
  "url": "https://lowpaymentfee.com/api/v1/generate/resource/123",
  "body": {},
  "method": "POST",
  "headers": {
    "X-PAYMENT": "<x402-payment-token>",
    "Content-Type": "application/json"
  }
}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/123
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and well-formed, confirming the endpoint exists and accepts USDC payments on Base. However, documentation is effectively absent — all doc pages show only 'Connect wallet' — and there is no OpenAPI spec, no input/output schema, and no explanation of what this specific resource endpoint actually does. The listing is largely a stub.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README pages all render only a wallet-connect prompt
  • —No OpenAPI or JSON schema describing request parameters or response format
  • —The exact functionality of /api/v1/generate/resource/123 is unknown; 'Premium API Access' is a generic label
  • —The provider site lists many endpoints but none have documented schemas or examples

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 19:47:59Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/ePhps8