Linseed (LIN) earnings data via x402 micropayment on Base for $0.02/request
What it does
This endpoint at lowpaymentfee.com provides financial earnings data for LIN (Linseed) via the x402 payment protocol. It is part of a broader suite of finance and Web3 APIs offered by the same provider, all priced at $0.02 per request and settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an X-PAYMENT header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the provider's wallet on Base. No API keys, rate limits, or upfront commitments are required — each call is individually paid.
Documentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all resolve to a near-empty "Connect wallet" page, so there is no published schema for request parameters or response format. The endpoint path suggests it returns earnings-related financial data for the ticker symbol LIN, but the exact fields, supported query parameters, and response structure are undocumented. Prospective users should expect to experiment or contact the provider for details.
Capabilities
Use cases
- —Retrieving earnings data for LIN (Linseed) programmatically
- —Integrating per-call financial data lookups into autonomous agent workflows
- —Paying for individual finance API calls without subscriptions or API keys
Fit
Best for
- —Agents needing on-demand earnings data without account setup
- —Developers experimenting with x402 micropayment-gated APIs
- —Low-volume financial data consumers who prefer pay-per-call
Not for
- —High-volume bulk financial data ingestion (no documented batch support)
- —Users who need detailed API documentation or guaranteed SLAs
- —Consumers requiring historical earnings time-series (not documented)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/finance/LIN/earnings \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-signed-payment-header>"Endpoint
Quality
The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, there is no documentation for request parameters, response schema, or examples. The /docs and related pages are empty. The specific data returned by this earnings endpoint is entirely undocumented, making this effectively a stub listing.
Warnings
- —No API documentation available — /docs, /pricing, /api, and /README pages are all empty
- —Request body schema and response format are completely undocumented
- —It is unclear what specific earnings data (quarterly, annual, estimates, etc.) is returned
- —The ticker 'LIN' could refer to Linseed or Linde plc — no clarification in docs
Citations
- —The endpoint returns HTTP 402 with an x402 challenge advertising USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/finance/LIN/earnings
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Base with maxAmountRequired of 20000 base units ($0.02)https://lowpaymentfee.com/api/v1/finance/LIN/earnings
- —Documentation pages (/docs, /pricing, /api, /README) resolve to near-empty 'Connect wallet' pageshttps://lowpaymentfee.com/docs