The local SDK for reliable agent workflows

Soterias helps you observe existing applications, verify evidence and protect consequential agent actions. Build with Python, TypeScript or MCP, with local measurements and Rust-enforced authority at the operation boundary.

Agent development lifecycle

Build

Build workflows around existing agents with native Python and TypeScript SDKs and explicit tool boundaries.

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Verify

Verify evidence, source citations and signed receipts.

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Protect

Run approved actions through a Rust security boundary.

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Observe

Trace, measure and inspect agent workflows locally.

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Agent workflows

Connect the pieces in complete AML, accounting, personal-assistant and enterprise examples.

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SDK and integrations

Python and TypeScript

Use the application SDK, or explore the smaller API preview and migration guide.

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MCP

Connect a client to authenticated, operator-selected protected tools.

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Resources

Feature guides

What each feature does, when to use it and complete examples.

API reference

Classes, methods and configuration for your application.

Release and support

Current packages, tested platforms and preview scope.