x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transfers/37

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific path `/api/v1/transfers/37` is one of many endpoints offered by this provider, which hosts a broad catalog of pay-per-request APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities.

The endpoint accepts POST requests and requires an X-PAYMENT header for settlement. Payment is in USDC on the Base network, with a maximum amount of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). The provider advertises no API keys, no rate limits, and instant access — the only gate is the per-request micropayment. The x402 challenge confirms the endpoint is live and returns application/json responses.

While the provider's landing page lists numerous endpoints across categories (sentiment analysis, text summarization, price feeds, geocoding, etc.), this specific listing covers the `/api/v1/transfers/37` path. Documentation beyond the landing page is effectively empty (pages show only "Connect wallet"), so the exact functionality of this particular transfer endpoint is unclear. It may relate to a financial transfer or data transfer operation, but no schema or detailed docs are available to confirm.

Capabilities

x402-paymentusdc-base-networkpay-per-requestjson-responseno-api-keypost-method

Use cases

  • —Programmatic access to premium data or transfer operations without subscription
  • —Agent-driven API consumption with per-call USDC micropayments
  • —Integrating pay-as-you-go services into automated workflows

Fit

Best for

  • —Developers wanting no-commitment pay-per-use API access
  • —AI agents that can settle x402 payments autonomously
  • —Users already holding USDC on Base network

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transfers/37 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transfers/37
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid 402 challenge with clear pricing, but there is no documentation, no request/response schema, and the specific purpose of '/api/v1/transfers/37' is undetermined. The docs, pricing, and README pages are all blank beyond a wallet-connect prompt.

Warnings

  • —No documentation available — all doc pages return only 'Connect wallet'
  • —The specific functionality of /api/v1/transfers/37 is unknown; no input/output schema provided
  • —Provider lists many endpoints but none have detailed specs beyond a title and price

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:16:05Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/97pQjK
Pay-per-call premium API access on Base network via x402 protocol at $0.02/request in USDC. — Clawmart · Clawmart