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/54

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific path `/api/v1/accounts/54` is one of many endpoints offered by the platform, which spans categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints are priced at $0.02 per request, settled in USDC on the Base network with no API keys, rate limits, or 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 (0.02 USD, since USDC uses 6 decimals) to wallet address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 on Base. The response MIME type is application/json. The platform advertises instant access with no signup — callers simply attach an X-PAYMENT header conforming to the x402 exact scheme.

Documentation 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 explanation of what the `/api/v1/accounts/54` endpoint actually returns. The landing page lists many other endpoints (metrics, reports, sentiment analysis, summarization, etc.) but provides no detail on input parameters or output formats for any of them. The specific purpose of the `accounts/54` path is unclear — it could be an account lookup, a demo resource, or a placeholder.

Capabilities

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

Use cases

  • —Accessing premium API data with per-request USDC micropayments on Base
  • —Agent-driven API consumption without pre-registration or API keys
  • —Testing x402 payment protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 payment-gated APIs
  • —AI agents that need keyless, pay-per-call API access
  • —Low-volume consumers who want no subscription commitments

Not for

  • —Users needing well-documented API contracts with clear input/output schemas
  • —High-volume production workloads requiring SLAs or guaranteed uptime
  • —Anyone who needs to understand the exact data returned before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/54 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/54
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but there is virtually no documentation — no OpenAPI spec, no request/response schemas, no explanation of what the accounts/54 endpoint returns. The docs, pricing, and README pages are all empty beyond a wallet-connect prompt. This is effectively a stub listing.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or schema definition found for any endpoint
  • —The specific purpose and output of /api/v1/accounts/54 is unknown — 'Premium API Access' is the only description
  • —No request body schema or example responses are documented anywhere
  • —Cannot verify what data or service is actually delivered after payment

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:32:17Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/npbGV2
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart