# SynthLink API > Public JSON API for crawled documents and LLM-generated insights. ## Human Docs - Website: https://synth-link.com/ - API docs: https://synth-link.com/docs ## Machine Specs - OpenAPI: https://synth-link.com/openapi.json - Agent manifest: https://synth-link.com/.well-known/agent.json - OpenClo manifest: https://synth-link.com/.well-known/openclo.json ## Authentication - Header: X-SYNTHLINK-KEY - Key request: https://synth-link.com/api/v1/access-request ## Public Endpoints - GET https://synth-link.com/api/v1/health (no auth) - GET https://synth-link.com/api/v1/documents (auth) - GET https://synth-link.com/api/v1/insights (auth) - GET https://synth-link.com/api/v1/combined (auth)