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Developers

BuildonFernLex

A typed, versioned REST + webhook API for AI employees, matters, documents, the evidence graph and automation.

$ curl -X POST https://api.fernlex.com/v1/agents/invoke \

-H "Authorization: Bearer $FERNLEX_KEY" \

-d {"agent":"intake","message":"New lead from web form"}

{

"status": "routed",

"matter_id": "M-2903",

"assigned_to": "attorney@firm.com"

}

APIreference

Agents API

Create and invoke AI employees programmatically.

POST /v1/agents

Matters API

Create and update matters, tasks and deadlines.

GET /v1/matters

Documents API

Upload, index and search legal documents.

POST /v1/documents

Evidence Graph API

Query entities, timelines and relationships.

GET /v1/graph

Webhooks

Stream events for intakes, documents and completions.

POST /v1/webhooks

Automation API

Trigger and inspect workflow runs.

GET /v1/runs

Build something great

Get an API key today and start automating your legal stack.