Orchestrator Integrations

pyhall works alongside your existing orchestrator — not instead of it. All governance decisions flow through the Hall Server HTTP API: POST /api/route on http://localhost:8765.

Your orchestrator keeps orchestrating. pyhall decides who executes what, under what policy, with cryptographic proof.

Authentication

All POST /api/route calls require a session token. Set HALL_SESSION_TOKEN in your environment after logging into Hall Monitor. See each integration guide for language-specific examples.

Supported Integrations

Integration	Language	Guide
LangGraph	Python	LangGraph guide →
CrewAI	Python	CrewAI guide →
AutoGen	Python	AutoGen guide →
LlamaIndex	Python	HTTP API guide →
HTTP API (any language)	Any	HTTP API guide →

How It Works

All patterns use the same Hall Server HTTP API. The integration is a single HTTP call before you dispatch a task:

POST http://localhost:8765/api/route

If allowed is true, proceed. If false, the capability is blocked by policy — check deny_reason.

Setup

1. Install pyhall: pip install pyhall-wcp
2. Start Hall Monitor (or Hall Server directly): pyhall hall start
3. Point your orchestrator at http://localhost:8765

That’s it. No SDK changes to your orchestrator required — it’s plain HTTP.

See the Hall API reference → for full endpoint documentation.