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API reference
Every endpoint on https://api.unlob.com, generated from the API's own description.
These pages are rendered from the OpenAPI document the API serves, so they cannot drift from it. Every one of these endpoints is also an MCP tool taking the same parameters.
Authenticated
Send x-api-key: ulb_… or Authorization: Bearer ulb_…. Each call bills one request.
/account Your plan and usage this period
/assemble_context A ready-to-read context pack
/authorities Who is central on this topic
/browse Browse without a query
/corroborate How many independent sources say this?
/doc/{id} Full text of one passage
/dossier One-hop brief on an entity
/mcp Model Context Protocol endpoint
/path Connect two passages
/related Follow the thread
/search Search the index
/similar More like this
/why_not Is this URL in the index?
Open
No key. An agent has to be able to learn what a service does before deciding whether to sign up for it, so the descriptions of this API are readable by anyone.