FlyCelest is the most innovative full-stack AI agent platform — Temporal Agents that sleep and auto-resume, Organic Topology cell division, Agent Immune System, DNA transfer, visual workflows, browser automation, 15+ connectors.
from celest.temporal import SuspendableSession
from celest.temporal import AgentSuspended
# Agent that sleeps and auto-resumes
session = SuspendableSession(
provider=AnthropicAdapter(),
)
try:
await session.run(
"Send report when PR #142 is merged"
) # suspends automatically
except AgentSuspended as e:
# store e.snapshot → resume on webhook
store_and_schedule(e.snapshot)Ecosystem
From a Python library to a full desktop app — every product is built on the same pycelest engine. Available in Python, TypeScript, Go, and Java.
Visual AI Agent Builder
Build, run, and monitor AI agents with a drag-and-drop workflow canvas. Connect any service, automate any process.
Python AI Agent Framework
Production-ready framework for building safe, capable AI agents. MCP Server, Langfuse observability, native connectors.
MCP Server for Claude & Cursor
Expose your FlyCelest agents and workflows directly in Claude Desktop, Cursor, or any MCP client with one command.
AI-Powered Trading Platform
AI agents that trade on Interactive Brokers. Risk management, backtesting, and real-time portfolio monitoring.
Cross-Platform Desktop App
Run the full FlyCelest platform locally with Electron. Zero config — the API starts automatically. Ollama local models.
12 Exclusive Innovations · v1.0.0
pycelest v1.0.0 ships capabilities that no other AI agent framework offers — from agents that sleep and wake up, to behavioral DNA transfer between models.
Agents that sleep mid-task and auto-resume when a real-world condition fires — GitHub merge, webhook, scheduled time, or human approval.
Cell division for AI agents. One agent spawns specialized sub-agents, runs them in parallel, and synthesizes merged results automatically.
Real-time behavioral anomaly detection: retry loops, cascade injection, token spikes, tool evasion. Auto-quarantine on critical threats.
Extract the behavioral fingerprint of a high-performing agent and inject it into a new one — even on a different LLM model.
OpenAI, Anthropic, Google, Mistral, DeepSeek, Grok, Ollama, LM Studio — switch provider in one line. FallbackAdapter chains providers automatically.
Drag-and-drop canvas with 40+ node types. Triggers, logic, loops, conditions, agent calls — all visual, no code required.
Playwright nodes: click, type, extract, screenshot. Full RPA workflows. Agents browse the web like a human.
Gmail, Slack, Notion, Meta, Google Drive, Sheets, Stripe, LinkedIn and more — all with shared connection pools for performance.
Shared persistent knowledge base across all agents in a project. One agent learns something — all agents benefit automatically.
Analyze which instructions in your system prompt are actually followed. Detect ignored rules and get concrete rewrite suggestions.
12-task standardized evaluation suite across reasoning, instruction following, tool use, and safety. Detect regressions between agent versions.
Universal agent-to-agent negotiation standard. Agents advertise capabilities, bid on tasks, and return cryptographically signed verifiable results.
Stream tool calls and results live to the browser. Watch your agents think in real time. Rate-limited adapter with auto-429 recovery.
Trigger agents via Telegram or WhatsApp. Agents reply directly in the chat thread. Session Replay for A/B testing providers.
Publish, discover, and load FunctionTool packages. pip install celest-tools-gmail and it just works.
pip install pycelestpycelest is free and open source — MIT license, forever. Cloud and Desktop plans available for teams and power users.
Need a Desktop license? See pricing →