Get the current LINK token price via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint returns the current price of the LINK (Chainlink) token. It is part of the lowpaymentfee.com platform, which offers a collection of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.
The specific endpoint at `/api/v1/tokens/LINK/price` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), which equals $0.02 per request (USDC uses 6 decimals). No API keys or account registration are required — payment is handled entirely through the X-PAYMENT header. The platform advertises no rate limits and instant access.
Documentation on the site is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional content. There is no OpenAPI schema, no example request/response payloads, and no detailed documentation for any endpoint. The response format and fields must be inferred from the endpoint path and the platform's general description. The endpoint is confirmed live via a valid 402 challenge response.
Capabilities
Use cases
- —Fetching the current LINK/Chainlink token price for trading bots or dashboards
- —Integrating real-time LINK pricing into DeFi applications without API key management
- —Agent-driven portfolio tracking that pays per query with no subscription
Fit
Best for
- —AI agents or bots that need on-demand LINK price data with no signup
- —Developers wanting frictionless pay-per-call crypto price feeds
- —Applications on Base that already hold USDC and want seamless x402 integration
Not for
- —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
- —Users needing historical LINK price data or OHLCV candles (only current price implied)
- —Anyone requiring detailed API documentation or guaranteed response schemas
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/LINK/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge and clear pricing ($0.02/request in USDC on Base). However, there is no OpenAPI schema, no example request or response payloads, and all documentation pages are empty beyond a wallet-connect prompt. The response format is entirely unknown.
Warnings
- —No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
- —No OpenAPI or JSON schema describing request parameters or response fields
- —Response format and fields for /api/v1/tokens/LINK/price are completely undocumented
- —No SLA, uptime guarantees, or rate limit details provided
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/tokens/LINK/price
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/tokens/LINK/price