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/wire/169

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The site hosts a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). Each request costs $0.02 in USDC on the Base network, with no API keys, no rate limits, and no minimum commitments required.

The specific endpoint `/api/v1/wire/169` is listed as "Premium API Access" but its exact functionality is not documented beyond that label. The x402 challenge confirms it is live, accepts POST requests, and charges up to 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is settled on-chain to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.

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, and no usage examples available. The site's landing page lists the broader API catalog but does not explain what `/api/v1/wire/169` specifically returns. Prospective callers should be aware that without documentation, the exact input parameters and response format for this endpoint are unknown.

Capabilities

x402-paymentusdc-basepay-per-requestpost-endpointno-api-keyno-rate-limit

Use cases

  • —Accessing premium API services with per-request USDC micropayments on Base
  • —Agent-driven API consumption without pre-registration or API keys
  • —On-chain pay-as-you-go access to data, AI, finance, or utility endpoints

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access settled in USDC on Base
  • —AI agents that can handle x402 payment challenges autonomously
  • —Users who prefer no-commitment, no-subscription API billing

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —High-volume consumers who need bulk pricing or rate-limit guarantees
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wire/169 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wire/169
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what this specific endpoint does, what inputs it expects, or what it returns. No OpenAPI spec, no examples, and all doc pages are empty beyond a wallet-connect prompt. The listing is effectively a stub.

Warnings

  • —The exact functionality of /api/v1/wire/169 is undocumented — 'Premium API Access' is the only description available.
  • —All documentation pages (docs, pricing, API, README) render only a 'Connect wallet' prompt with no usable content.
  • —No OpenAPI spec or request/response schema is available; input parameters and output format are unknown.
  • —The broader site lists many endpoints but none map clearly to the /wire/169 path.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:48:08Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/d4aScM
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart