x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/166

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol on the Base network. The specific resource path `/api/v1/trades/166` suggests a trade-data or financial-trade endpoint, though the exact response payload is not documented. Payment is settled in USDC (contract 0x8335…2913 on Base) at a cost of $0.02 per request (20,000 base units with 6 decimals).

The broader lowpaymentfee.com platform advertises a suite of x402-gated APIs spanning data & analytics, AI/ML inference (sentiment, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation) — all at the same $0.02/request price point. The platform emphasizes no API keys, no rate limits, and instant access.

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, and no usage examples available from the crawl. The endpoint is confirmed live via a valid 402 challenge, but the actual data returned after payment is unknown.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-billingno-api-keytrade-data

Use cases

  • —Fetching trade data or trade details for a specific trade ID via micropayment
  • —Programmatic agent access to paid API endpoints without API key management
  • —Integrating pay-per-request financial data into automated trading workflows

Fit

Best for

  • —Agents or bots that need keyless, pay-per-call API access on Base
  • —Developers experimenting with x402 payment protocol integrations
  • —Low-volume consumers who want no subscription commitment

Not for

  • —Users needing detailed API documentation or response schemas before purchasing
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Anyone without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/166 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/166
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The specific purpose of /api/v1/trades/166 is unclear beyond the generic 'Premium API Access' label. This is effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
  • —No OpenAPI or output schema provided; the actual response payload after payment is unknown.
  • —The specific endpoint /api/v1/trades/166 is not listed on the homepage's API catalog, making its purpose unclear.
  • —No request body schema documented — unclear what POST body (if any) is expected.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:37:43Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/4CH78V