x402basequality 0.35

x402-gated 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/claims/93

What it does

lowpaymentfee.com is an x402-enabled API platform that exposes a variety of endpoints across four categories: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are pay-per-call at $0.02 each, settled in USDC on the Base network via the x402 protocol.

The specific endpoint `/api/v1/claims/93` is listed as "Premium API Access" and returns a 402 challenge requesting up to 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals = $0.02). Payment is made via the x402 exact scheme with no API keys, no rate limits, and no upfront commitments required. The endpoint accepts HTTP POST and returns application/json.

Documentation beyond the landing page 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 example payloads available. It is unclear what specific data or functionality the `/api/v1/claims/93` endpoint returns, as the description is generic ("Premium API Access") and does not match any of the named API categories on the homepage. Without documentation or examples, agents will need to experiment to determine the expected input and output formats.

Capabilities

x402-paymentpay-per-requestusdc-settlementbase-networkdata-analyticsai-inferencesentiment-analysistext-summarizationclassificationembeddingsfinance-datageocodingno-api-key

Use cases

  • —Paying per-call for AI inference (sentiment, summarization, classification, embeddings) without API key management
  • —Fetching real-time financial data like token quotes, gas estimates, and exchange rates on demand
  • —Running utility tasks like geocoding, validation, or data conversion with micropayments

Fit

Best for

  • —Agents that need diverse API access without subscription commitments
  • —Developers wanting to prototype with pay-per-use endpoints on Base
  • —Crypto-native applications that can settle in USDC on Base

Not for

  • —Production workloads requiring documented request/response schemas and SLAs
  • —Use cases needing high-volume batch processing where per-request pricing is inefficient
  • —Users who cannot transact in USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/claims/93 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/claims/93
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documentation, no request/response examples, and the specific purpose of /api/v1/claims/93 is unclear. The docs, pricing, and README pages are all empty beyond a wallet connect prompt.

Warnings

  • —No OpenAPI or schema documentation available for any endpoint
  • —The /docs, /pricing, /api, and /README pages contain no useful content
  • —The specific endpoint /api/v1/claims/93 ('Premium API Access') does not correspond to any named API on the homepage — its actual functionality is unknown
  • —No request body schema or response schema is documented anywhere

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 04:18:07Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/8wHKDs
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart