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Actae is a durable execution substrate: ordered events, atomic versioned state, exact-boundary forks, tool-execution idempotency, consumer and execution groups, scheduled wake-ups, replay-to-live WebSockets, experiments, verifiable lineage, and operational guardrails behind one endpoint. SDKs are available in Python, Go, and TypeScript.
Quickstart
Run Actae locally or in the Cloud, install an SDK, record and replay your first events in minutes.
ReadCloud & self-hosted operations
Dedicated hosted runtimes, PostgreSQL and verified backups, usage reporting, enrollment, entitlement sync, and the web dashboard.
ReadCore concepts
Channels, events, cursors, replay-to-live, atomic state transitions, and idempotency guarantees.
ReadREST & WebSocket API
Language-agnostic API reference: events, state, exact-boundary forks, tool ledgers, and WebSocket protocol.
ReadForking & recovery
Exact-boundary forks with immutable receipts, crash recovery, structural diff, decision trails, and fidelity evidence.
ReadCoordination
Idempotent tool executions, durable consumer groups, persisted wake-ups, and fan-out delivery.
ReadMulti-agent groups
Durable agent messages, fenced leases, causal DAGs, WebSocket delivery, and safe group forks.
ReadHuman approval
Pause an agent for a durable human decision that survives restarts — request, decide, wait — with timeout wake-ups.
ReadReliability evidence
The runnable pass/fail matrix behind the failure claims: real process kills, side-effect-safe forks, coordination, and a concurrency soak.
ReadObservability interop
Correlate execution ids with OpenTelemetry trace/span ids and export durable events as GenAI spans — without replacing your stack.
ReadUsage and limits
Data-written and retained-data meters, atomic enforcement, warning thresholds, retention, and quota behavior.
ReadExperiments
Experiment groups, outcomes, ranking, promotion, structural diffs, and decision trails.
ReadSessions & adapters
AgentSession step/fork/resume plus language-specific adapters for LangGraph, LangChain, Claude, OpenAI, CrewAI, Codex, and Copilot.
ReadLangGraph integration
Actae as a BaseCheckpointSaver: cross-process resume, interrupted-step recovery, and exact-boundary forks.
ReadOpenAI Agents SDK integration
Persist the native RunState for resume and forks, plus trace/span mirroring for observability.
ReadClaude Agent SDK integration
A drop-in SessionStore for durable transcripts, cross-process resume, hooks, and session forks.
ReadPython SDK
actae-client — async-first, sync bridge, WebSocket streaming, AgentSession, and adapters.
ReadGo SDK
go get github.com/BViganotti/actae-go — int64-faithful payloads, transactional state store, Copilot SDK integration.
ReadTypeScript SDK
@actae/sdk — ESM-only, bigint-safe JSON, subpath adapter exports, and live streaming.
ReadLLM documentation pack
Copy-paste markdown dumps of the full documentation, ready to drop into any LLM chat.
ReadPaste Actae into your LLM
Every documentation page is available as a raw markdown dump — the exact format LLMs consume best. One click copies a page, or grab the entire pack as a single file and drop it in your chat to give the model complete, current knowledge of Actae.
Open the LLM pack