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Atomic Agents

Lightweight Python framework for composing AI agents and tools as small, typed pieces built on Instructor and Pydantic.

Harness by Eigenwise

IndexedMIT★ 6,304
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Install

From the package registry. Read the repository before you give any tool access to your data.

pip install atomic-agents

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About

Atomic Agents builds pipelines from single-purpose components, namely agents, tools and context providers, which can be reused and chained. Schemas are defined with Pydantic and model calls go through Instructor, with provider SDKs installed as Instructor extras for Groq, Anthropic and Gemini and OpenAI included by default. The docs list multi-agent orchestration patterns, tracing with OpenTelemetry and Phoenix examples, and a deployment guide. The README states that version 2.0 has been released.

Use cases: agent-orchestration

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Fact sheet

Languages
PythonREADME
Packages
atomic-agents (pypi)README
Multi-agent
Yeseigenwise.github.io
Orchestration
sequentialREADME
Observability
OpenTelemetry, Arize Phoenixeigenwise.github.io
Model providers
openai, groq, anthropic, googleREADME
Maturity
StableREADME

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

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Signals

Stars
6,304
Forks
557
Open issues
2
Weekly downloads
4,639
Last commit
Oct 24, 2026 (6 days ago)
Last release
Oct 21, 2026 (9 days ago)
Last package publish
Oct 21, 2026 (9 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages
pypi atomic-agents
License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

Atomic Agents. Agent Mart. https://agentmart.dev/harnesses/atomic-agents (last updated 2026-10-24)