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For developers
Ask for a verdict before you act.
One call, from wherever the action originates: an agent's tool call, your own function, a pipeline step, or plain HTTP. You get ALLOW, ESCALATE or BLOCK, and a signed Decision Dossier explaining why.
Where Decionis sits in your stack
Decionis does not replace the model, the protocol, or the tool. It is the authority check between the intent and the effect.
Three layers left to right. The intelligent layer contains LLMs and agents, copilots, automation, and workflows. Everything it proposes passes through the Decionis Protocol, the decision authority and policy engine. Only then does it reach the execution layer: tools and APIs, databases, applications, infrastructure, and payments. Decionis does not replace the model, the tool, or the system — it is the authority check between the intent and the effect. Any agent, any tool, any system, one consistent decision before anything happens.
Ways in
The protocol reached directly — from an agent's tool call, your own code, a pipeline, or plain HTTP. This is the shortest path from nothing to a first verdict.
MCP Server
Every tool call an agent makes can ask Decionis before it runs.
SDKs
Every function in your own code can ask Decionis before it commits.
GitHub Action
Every deployment can ask Decionis before it ships.
CLI
Every command in a terminal or a pipeline can ask Decionis before it executes.
Webhooks
Every system you already run can ask Decionis over plain HTTP.
Zapier, Make & n8n
Every automation step can ask Decionis before it fires.
What is public today
Everything on this list resolves without an account or a conversation. We list it explicitly rather than gesturing at a GitHub org, because the point of this section is that you can check it.
decionis/govern
actionGovern any GitHub workflow step on a signed Decision Dossier — gate deploys, releases and infra changes, in shadow or enforce mode. Public repository.
uses: decionis/govern@v1@decionis/sdk-node
packageThe Node SDK: ask for a verdict on a proposed action from your own code, and read the Decision Dossier that comes back.
npm install @decionis/sdk-nodeIs Decionis open source?
The protocol implementation is not open source today. What is public is listed above: the govern Action and the Node SDK. The Decision Dossier format is documented and independently verifiable against our published JWKS, so you can check a verdict without trusting our code.
Read the Decision Dossier formatGo deeper
API reference
Every endpoint, every field of the decision contract, and the shape of a Decision Dossier.
MCP integration
Put the decision layer on an agent's tool-call boundary so no tool runs unevaluated.
Policy encoding
Turn written authority into executable rules, versioned and pinned so decisions reproduce.
Policy Exchange
Fork a decision recipe someone else already runs instead of authoring from scratch.
Webhooks
Reach the protocol from any system that can make an HTTP request.
The seven canonical diagrams
The whole architecture in seven drawings, each downloadable for your own docs.