Retrieve KLAY token data via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides token data for KLAY (Klaytn) as part of a broader suite of finance and crypto APIs. It is accessed via the x402 payment protocol: each request costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required. The caller simply attaches an X-PAYMENT header with a valid payment proof to receive the response.
The provider hosts a wide catalog of pay-per-call endpoints spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services—all priced uniformly at $0.02 per request. This specific endpoint (`/api/v1/tokens/KLAY`) sits in the crypto/finance category and likely returns token metadata or pricing information for KLAY. The x402 challenge confirms the endpoint is live, accepts POST requests, and settles payments to a known USDC contract on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).
Documentation beyond the landing page is essentially empty (all sub-pages just show "Connect wallet"), so the exact response schema, supported query parameters, and detailed field definitions are unknown. The endpoint is functional and correctly issues a 402 challenge, but consumers should expect to experiment with request bodies to discover the full API surface.
Capabilities
Use cases
- —Fetching KLAY token metadata or price information on demand
- —Building crypto dashboards that pull token data without API key management
- —Agent-driven portfolio tracking that pays per query via x402
Fit
Best for
- —Developers wanting zero-signup access to token data
- —AI agents that can settle x402 micropayments on Base
- —Low-volume or sporadic crypto data lookups where subscriptions are overkill
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users who need detailed API documentation or guaranteed response schemas before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/KLAY \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation, no OpenAPI schema, no example responses, and all doc/pricing/API pages are empty stubs. The actual response format and supported parameters are completely unknown.
Warnings
- —No API documentation available — all doc pages return only 'Connect wallet' with no content.
- —Response schema for /api/v1/tokens/KLAY is undocumented; consumers must discover fields experimentally.
- —The provider lists many endpoints across diverse categories (AI, analytics, finance, utilities) all at $0.02 — quality and depth of each is unverified.
Citations
- —Endpoint returns HTTP 402 with x402 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/tokens/KLAY
- —Price is $0.02 per request (maxAmountRequired 20000 in USDC base units, 6 decimals)https://lowpaymentfee.com
- —Payment settles in USDC on Base network to contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/tokens/KLAY
- —No API keys, no rate limits, instant access advertisedhttps://lowpaymentfee.com