AI Agents Can Do Anything —
But Should They?

Multiparty provides fine-grained, programmatically defined permissions to control sensitive operations performed by AI Agents, without brittle if statements.

End-user approvals

Retrieval augmented generation (RAG)

Per-customer cost limits

How Multiparty Works

Goal: Keep AI costs under control for our product

Step 1 of 5

Policy Prompt

  • Ensure user's usage is under quota limit
  • Limit cost to $5 per customer (free tier)
  • Limit cost to $20 per customer (paid tier)
  • Limit cost to $1 per logged in user

Policy Rules

  • usage < quota
  • plan == "free" && usage < 5.0
  • plan == "paid" && usage < 20.0
  • email != "" && usage < 1.0

Scenario

Generate 20 creative party ideas.

We don’t ruin the AI Agent party,

we just make sure it stays

under control. No surprises.


Multiparty rules are auditable,

reliable, and compliant.


The best part? It works with your

existing tools, models, and code.

We don’t ruin the AI Agent party,

we just make sure it stays

under control. No surprises.


Multiparty rules are auditable,

reliable, and compliant.


The best part? It works with your

existing tools, models, and code.

Star on GitHub
Still in private alpha
Open Playground

OK, but what is it?

is a deterministic rule engine to make policy-based decisions easy.

Multiparty implements a technical safety framework that consists of:

  • Rules. Policies are fast and easy to write, and even easier to test. They use Common Expression Language under-the-hood, built by Google for high-performance.
  • Actions. Calling external functions works out-of-the-box with multiple languages (Python, JavaScript, etc) with built-in caching. Read or write from any HTTP source.
  • Tests. Deploy automated systems with confidence that common sense controls are correctly implemented and easily tested.

Multiparty’s goal is to provide a simple, deterministic, and testable way to implement policy-based decisions.

Let’s Party

is an authorization framework built for everyone. Join the waitlist for early access.

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