x402basequality 0.30

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/57

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/accounts/57` is one of many endpoints offered by the platform, which spans data & analytics, AI & machine learning, finance & Web3, and infrastructure utility categories. All endpoints are priced at $0.02 per request, settled in USDC on the Base network with no API keys, no rate limits, and no commitments required.

The x402 challenge confirms the endpoint is live, accepting POST requests and requiring payment of up to 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals = $0.02) per call. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout. The response MIME type is application/json.

However, the specific functionality behind `/api/v1/accounts/57` is not documented. The platform's landing page lists various API categories (metrics, reports, sentiment analysis, summarization, classification, embeddings, price feeds, exchange rates, geocoding, validation, etc.), but the `/api/v1/accounts/` path does not appear among them. Without documentation or an OpenAPI schema, the exact input parameters and response structure for this particular endpoint remain unknown.

Capabilities

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

Use cases

  • —Accessing a pay-per-call API endpoint without needing API key registration
  • —Making programmatic requests settled instantly in USDC on Base
  • —Integrating agent-purchasable endpoints into automated workflows

Fit

Best for

  • —Developers wanting frictionless pay-per-use API access without subscriptions
  • —AI agents that can settle x402 payments autonomously on Base
  • —Users who prefer crypto-native micropayments over traditional billing

Not for

  • —Users who need detailed documentation or OpenAPI specs before integrating
  • —Anyone without a Base-compatible USDC wallet
  • —High-volume consumers who would benefit from bulk pricing or subscriptions

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/57 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/57
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base). However, the specific endpoint /api/v1/accounts/57 has no documentation, no OpenAPI schema, no example requests or responses, and does not appear in the platform's listed API catalog. The docs, pricing, API, and README pages all returned only a 'Connect wallet' prompt with no useful content.

Warnings

  • —The endpoint path /api/v1/accounts/57 is not listed among the platform's documented APIs — its purpose is unclear
  • —No OpenAPI schema, request parameters, or response format documentation is available
  • —All documentation pages (docs, pricing, API, README) returned only 'Connect wallet' with no substantive content
  • —The exact functionality behind 'Premium API Access' at this path cannot be verified

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:34:04Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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