x402basequality 0.30

x402-payable API platform on Base offering 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/orders/9

What it does

lowpaymentfee.com is an x402-enabled API platform that provides a collection of endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and general utility services. 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/orders/9` 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 request (USDC uses 6 decimals). The broader platform advertises a uniform $0.02/request pricing across all its endpoints, covering categories such as sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, and more.

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 documentation, and no usage examples available from the crawled material. The endpoint is confirmed live (returns a valid 402 challenge), but without documentation it is unclear what request body `/api/v1/orders/9` expects or what response it returns.

Capabilities

x402-paymentper-request-billingusdc-baseno-api-keypost-endpointpay-per-use

Use cases

  • —Accessing premium API data without creating an account or managing API keys
  • —Making one-off paid API calls from an AI agent using x402 on Base
  • —Paying for API access with USDC stablecoin per request

Fit

Best for

  • —Developers wanting zero-signup, pay-per-use API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto-native micropayments over subscriptions

Not for

  • —Users who need detailed API documentation and request/response schemas before integrating
  • —High-volume consumers who want bulk pricing or subscription discounts
  • —Developers who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/orders/9 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/orders/9
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no OpenAPI spec, no documentation beyond a landing page listing, no request/response schemas, and no examples. The purpose of the specific /api/v1/orders/9 endpoint is unclear beyond the generic 'Premium API Access' label.

Warnings

  • —No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or schema definition found for any endpoint
  • —The specific purpose and expected input/output of /api/v1/orders/9 is undocumented
  • —The broader platform lists many endpoints but none have documented schemas or examples

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 22:06:21Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/YjQhpx
x402-payable API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart