x402basequality 0.35

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/lab/results/69

What it does

lowpaymentfee.com is a pay-per-request API platform that uses the x402 protocol to accept USDC payments on the Base network. The specific endpoint `/api/v1/lab/results/69` is listed under "Premium API Access" and returns JSON content. Payment is settled on-chain with no API keys, no rate limits, and no subscriptions required — each call costs $0.02 (20,000 base units of USDC with 6 decimals).

The broader platform offers endpoints across several categories: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and are accessible via the x402 payment protocol on Base.

The specific purpose of `/api/v1/lab/results/69` is not documented beyond the generic "Premium API Access" label. There is no OpenAPI schema, no request/response examples, and no detailed documentation available from the crawled pages. The endpoint accepts POST requests and returns `application/json`. Without further documentation it is unclear what data this particular endpoint returns or what request body it expects.

Capabilities

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

Use cases

  • —Accessing premium data or lab results via a single pay-per-call transaction
  • —Integrating pay-as-you-go API access into agent workflows without managing API keys
  • —Programmatic on-chain micropayments for data retrieval

Fit

Best for

  • —Developers wanting zero-commitment, per-request API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Users who prefer on-chain USDC payments over subscription billing

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/lab/results/69 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/lab/results/69
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming pricing and payment details. However, there is no OpenAPI schema, no request/response examples, and no documentation explaining what '/api/v1/lab/results/69' actually returns. The listing is effectively a stub with confirmed liveness and pricing but no functional detail.

Warnings

  • —No documentation available for this specific endpoint — purpose and response format are unknown
  • —No OpenAPI or schema definition provided
  • —No request body or response examples available
  • —The endpoint path '/api/v1/lab/results/69' suggests a specific resource but its content is undocumented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-21 22:36:09Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-21
Last seen2026-04-21

Agent access

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