x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/policies/22

What it does

This endpoint at lowpaymentfee.com is part of a broader platform offering pay-per-request APIs across data & analytics, AI/ML, finance & Web3, and infrastructure categories. The specific endpoint `/api/v1/policies/22` is labeled "Premium API Access" and is gated via the x402 protocol on the Base network. Payment is in USDC (contract 0x8335…2913) at a maximum cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are advertised; access is granted immediately upon payment.

The platform lists numerous sibling endpoints covering sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, gas estimates, geocoding, validation, conversion, and data export — all at the same $0.02/request price point. However, the specific functionality behind `/api/v1/policies/22` ("Premium API Access") is not documented beyond its title. There is no OpenAPI schema, no request/response examples, and the docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional content.

Because the endpoint is live (returns a valid 402 challenge) but its actual behavior, input parameters, and response format are entirely undocumented, agents should treat this as a discoverable but opaque endpoint. The x402 challenge confirms it accepts POST requests and returns application/json.

Capabilities

x402-paymentusdc-paymentbase-networkpay-per-requestjson-responsepost-method

Use cases

  • —Accessing a pay-per-call API without needing API keys or subscriptions
  • —Programmatic agent-driven API consumption with crypto micropayments
  • —Exploring x402-gated endpoints on the Base L2 network

Fit

Best for

  • —Agents or developers wanting keyless, pay-as-you-go API access
  • —x402-compatible wallets and clients on Base
  • —Low-cost per-request API consumption without rate limits

Not for

  • —Users who need detailed API documentation or schemas before calling
  • —High-volume use cases where per-request pricing may add up
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/policies/22 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/policies/22
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming pricing and network details. However, there is zero documentation on what the endpoint actually does, no request/response schema, and no examples. The docs pages are empty beyond a wallet connect prompt. This is effectively a stub listing.

Warnings

  • —The specific functionality of /api/v1/policies/22 ('Premium API Access') is completely undocumented — no description of inputs, outputs, or purpose beyond the title.
  • —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no usable content.
  • —No OpenAPI schema or request/response examples are available.
  • —The platform lists many endpoints but none appear to have public documentation of their behavior.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 08:02:01Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/PSbjjf
x402-gated premium API access on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart