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/generate/resource/106

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 resource probed (/api/v1/generate/resource/106) is labeled "Premium API Access" and returned a valid x402 challenge with a maxAmountRequired of 20,000 base units of USDC (0x8335… on Base, 6 decimals), which equals $0.02. Payment is made via the x402 exact scheme: the caller includes an X-PAYMENT header with a signed payment to the provider's address. The endpoint accepts POST requests and returns application/json.

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 usage examples available. The exact functionality behind resource/106 is unclear beyond the generic "Premium API Access" label. Prospective users should be aware that without documentation, integration requires experimentation or direct contact with the provider.

Capabilities

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

Use cases

  • —Programmatic access to premium API resources without traditional API key management
  • —Agent-driven workflows that need instant, keyless API access settled in USDC on Base
  • —Integrating pay-per-use API calls into Web3 applications

Fit

Best for

  • —Developers wanting zero-signup, pay-per-call API access
  • —AI agents with x402-compatible payment capabilities
  • —Users who prefer crypto micropayments over subscription 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
  • —Developers without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/106 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-signed-payment-header>" \
  -d '{}'

Endpoint

URLhttps://lowpaymentfee.com/api/v1/generate/resource/106
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, confirming pricing and payment details. However, documentation is effectively nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no examples. The specific functionality of resource/106 is unknown beyond its generic label.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all render only a wallet-connect prompt
  • —No OpenAPI or schema definition found; request and response formats are unknown
  • —The exact functionality behind /api/v1/generate/resource/106 ('Premium API Access') is unspecified
  • —The site lists many endpoints but none have documented input/output schemas

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 23:23:42Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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