Welcome

The Decionis API evaluates captured execution intent against versioned policies before your system performs an action. Your application sends what it is about to do; Decionis returns a signed decision (allow, block or escalate) that your SDK enforces locally, and records a verifiable Decision Dossier as proof of what was authorized.

What you'll find hereCopy Anchor Link

• API Reference: all 187 operations grouped by capability: Decisions, Execution grants, Escalations, Allowances, Governed plans, Policies, Dossiers and verification, Outcomes, Edge, Commerce, Hosted gateway and more, with request and response examples and a live API playground.
• SDKs: client libraries for C# (.NET), Python and TypeScript, generated by APIMatic, with code samples on every endpoint.
• Context Plugin: brings the API and SDKs into AI coding assistants such as Claude Code, Cursor and Codex.

Base URLCopy Anchor Link

https://api.decionis.com

AuthenticationCopy Anchor Link

Send your organization API key as a bearer token:

Authorization: Bearer $DECIONIS_API_KEY

The key's scopes decide which routes it may call (for example, decision:shadow keys can only run SHADOW evaluations). See Decionis for Developers to get started.

Common tasksCopy Anchor Link

• Check the service: GET /v1/health
• Evaluate a decision: POST /v1/protocol/evaluate-decision
• Issue an execution grant: POST /v1/authority/grants
• Finalize a granted action: POST /v1/authority/grants/{grantId}/receipts
• Fetch a Decision Dossier: GET /v1/protocol/dossiers/{dossier_id}
• Create a policy: POST /v1/policies