Buy structured weekly observations from three proprietary Skylark indicators with the x402 micropayment protocol. Every product has a full-name description, a dated JSON response, and a machine-readable discovery schema.
OpenAPI 3.1 → · Resource discovery →
A proprietary weekly composite of cross-asset liquidity momentum and risk conditions. Includes a liquidity regime classification in the paid response. It is a research index, not a live security price.
Interpretation: Interpret the value using Skylark's published regime system; compare observation dates when tracking changes.
GET /api/v1/flp/current
A proprietary financial liquidity index designed for examining longer-term changes in funding and market liquidity, published as dated weekly research observations rather than tick-by-tick market quotes.
Interpretation: Use the weekly index value together with its as_of date to compare financial liquidity over time.
GET /api/v1/fli/current
A proprietary weekly measure of global funding conditions and financial market financing dynamics, supplied as a dated computed indicator rather than raw bond yields or real-time rates.
Interpretation: Use this measure to study changes in global funding conditions, not as a direct market price.
GET /api/v1/gfc/current
Find the full name and explanation in the OpenAPI x-skylark-glossary fields, the glossary, and the first-party discovery manifest. A client calls the endpoint, receives an HTTP 402 challenge with verified extensions.bazaar, signs a Base Sepolia test payment, and receives a weekly JSON observation.
GET https://skylark-x402-testnet-discovery.vercel.app/api/v1/flp/current\nHTTP 402 Payment Required\nPAYMENT-REQUIRED: <base64 x402 v2 + Bazaar metadata>\n\n# Previously verified test payment example:\n{"index":"FLP","value":57.081,"as_of":"2026-10-11T00:00:00.000Z"}The example is historical; it is not a live market reading.
OpenAPI specification · Standard x402 manifest · Extended catalog · JSON catalog · Agent-facing reference · Status