x402basequality 0.35

Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/66

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the provider, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, paid in USDC on the Base network with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/accounts/66` is listed under the provider's umbrella as "Premium API Access" but its exact functionality is not documented in the crawled material. The x402 challenge confirms it is live, accepts POST requests, and charges a maximum of 20,000 base units of USDC (0.02 USD) per call, settling to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base. The response MIME type is application/json.

The provider's landing page advertises a broad suite of APIs (metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation), all at the same $0.02 price point. However, the docs, pricing, and README pages returned only a "Connect wallet" prompt with no further documentation. Because the specific behavior of the `/api/v1/accounts/66` endpoint is undocumented, callers should treat this as an exploratory integration until more details surface.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responseno-api-keypost-method

Use cases

  • —Programmatic access to premium data or services without API key management
  • —Agent-driven workflows that need instant, keyless API access with crypto micropayments
  • —Exploring a multi-category API marketplace (analytics, AI, finance, utilities) at low per-call cost

Fit

Best for

  • —Developers or agents who want frictionless pay-per-use API access on Base
  • —Use cases where avoiding API key provisioning and rate limits is valuable
  • —Low-volume or exploratory integrations at $0.02 per call

Not for

  • —Users who need detailed documentation or guaranteed SLAs before integrating
  • —High-volume production workloads where per-call crypto settlement overhead matters
  • —Users without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/66 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/66
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but the specific endpoint's functionality is completely undocumented. Docs, pricing, and README pages all returned only 'Connect wallet' with no usable content. No OpenAPI schema, no request/response examples, and no description of what /api/v1/accounts/66 actually returns.

Warnings

  • —The exact functionality of /api/v1/accounts/66 ('Premium API Access') is not documented anywhere in the crawled material.
  • —All documentation pages (docs, pricing, README, api) returned only 'Connect wallet' with no substantive content.
  • —No OpenAPI spec or request/response schema is available.
  • —The broad suite of advertised APIs (AI, analytics, finance, etc.) could not be verified beyond the landing page listing.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:35:48Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/GCbK4B
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart