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activegraph

Event-sourced Python graph runtime where agent behaviors react to a shared graph, with an audit trail and fork-and-diff replay.

Harness by yoheinakajima

IndexedApache-2.0★ 707
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pip install activegraph

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About

Active Graph is an event-sourced reactive graph runtime for long-running agentic systems. Objects and typed relations live in a graph, behaviors react to changes instead of messaging each other, and every change is an append-only event that can be audited, resumed, forked and diffed. Optional extras add Anthropic and OpenAI providers, a Postgres event store, and Prometheus and OpenTelemetry metrics, and the core needs only click and pydantic.

Use cases: agent-orchestration, monitoring-observability

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Fact sheet

Languages
PythonREADME
Packages
activegraph (pypi)README
Orchestration
event-drivenREADME
Observability
OpenTelemetry, PrometheusREADME
Model providers
anthropic, openaiREADME
Maturity
Stablegithub.com

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.

Signals

Stars
707
Forks
66
Open issues
6
Weekly downloads
603
Last commit
Sep 26, 2026 (1 month ago)
Last release
Sep 26, 2026 (1 month ago)
Last package publish
Sep 26, 2026 (1 month ago)

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

Details

Packages
pypi activegraph
License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Cite this page

activegraph. Agent Mart. https://agentmart.dev/harnesses/activegraph (last updated 2026-10-24)