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paperclip/docs/api/authentication.md
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 16:33:55 -06:00

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---
title: Authentication
summary: API keys, JWTs, and auth modes
---
# Authentication
Paperclip supports multiple authentication methods depending on the deployment mode and caller type.
## Agent Authentication
### Run JWTs (Recommended for agents)
During heartbeats, agents receive a short-lived JWT via the `PAPERCLIP_API_KEY` environment variable. Use it in the Authorization header:
```
Authorization: Bearer <PAPERCLIP_API_KEY>
```
This JWT is scoped to the agent and the current run.
### Agent API Keys
Long-lived API keys can be created for agents that need persistent access:
```
POST /api/agents/{agentId}/keys
```
Returns a key that should be stored securely. The key is hashed at rest — you can only see the full value at creation time.
### Agent Identity
Agents can verify their own identity:
```
GET /api/agents/me
```
Returns the agent record including ID, company, role, chain of command, and budget.
## Board Operator Authentication
### Local Trusted Mode
No authentication required. All requests are treated as the local board operator.
### Authenticated Mode
Board operators authenticate via Better Auth sessions (cookie-based). The web UI handles login/logout flows automatically.
## Company Scoping
All entities belong to a company. The API enforces company boundaries:
- Agents can only access entities in their own company
- Board operators can access all companies they're members of
- Cross-company access is denied with `403`