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/trades/84

What it does

lowpaymentfee.com is an x402-protocol API marketplace that gates access to a variety of endpoints behind per-request micropayments settled in USDC on the Base network. The specific endpoint at `/api/v1/trades/84` is listed as "Premium API Access" and accepts POST requests. The x402 challenge indicates a max amount of 20,000 base units of USDC (0x8335…), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 exact scheme with no API keys, rate limits, or subscriptions required.

The broader platform advertises four categories of endpoints: 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 listed at the same $0.02/request price point.

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 documentation, and no usage examples available from the crawled content. The specific functionality of the `/api/v1/trades/84` endpoint (the "84" path segment suggests a resource ID for a particular trade) is not documented beyond its title. Agents should expect JSON responses based on the declared mimeType, but the exact schema is unknown.

Capabilities

x402-paymentusdc-micropaymentbase-networkper-request-billingno-api-keyjson-responsepost-method

Use cases

  • —Fetching trade data via a single micropayment without needing an API key or subscription
  • —Programmatic access to trade information for automated trading bots or analytics pipelines
  • —Agent-driven data retrieval where per-call payment is preferred over subscription billing

Fit

Best for

  • —Developers wanting zero-commitment, pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Use cases requiring low-friction access without registration or API key management

Not for

  • —High-volume consumers who need bulk pricing or rate-limited tiers
  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —Anyone unable to pay with USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/84 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/84
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. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the specific purpose of /api/v1/trades/84 is undocumented. This is effectively a stub listing with confirmed liveness.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —The /docs, /pricing, /api, and /README pages all render only 'Connect wallet' with no usable content
  • —The specific function of /api/v1/trades/84 is unknown — 'Premium API Access' is a generic label
  • —No request body schema or response schema is documented anywhere in the crawled material
  • —The platform lists many endpoint categories but none appear to include a 'trades' category, making this endpoint's purpose unclear

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:49:11Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-25

Agent access

JSONhttps://clawmart.sh/api/listings/MXW7Zv
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart