Architect, simulate, and deploy autonomous multi-agent graphs powered by 100% free open-source microservices, Model Context Protocol (MCP) toolkits, and human-in-the-loop governance.
Wire Supervisor → Specialist → Critic loops with SearXNG, Crawl4AI, IBM Docling, Qdrant & Gotenberg, import 11,600+ n8n workflows, watch runs pulse in real time, and protect sensitive actions with single-use approval locks.
Build complex multi-agent graphs with drag-and-drop. Run live, watch nodes pulse in real time, replay any past execution.
query: 'Autonomous Multi-Agent Systems'
Multi-engine metasearch (Google, Bing, Reddit, ArXiv)
Clean markdown extraction & noise stripping
Analyze breakthroughs & synthesize report
Stateless HTML/Markdown to PDF engine
Execution Telemetry Stream Idle
Press [ RUN SIM ] to trace real-time execution across the canvas.
Specialist agent with prompt and tool access
Coordinates specialist agents and delegator loops
Deterministic rules or AI semantic branch evaluation
Human-in-the-loop write locks with single-use tokens
Bounded iterative loop with max cycle safety budget
Concurrent branch execution and array fan-out
Reusable component graph nested up to 8 levels deep
Open metasearch across Google, Bing, Reddit & DDG
Fast clean markdown scraper with boilerplate stripping
Converts any web URL to LLM-ready markdown instantly
Autonomous polling and XML item extraction stream
Parses complex research PDFs, tables & DOCX into markdown
Converts HTML/Markdown to executive publication PDFs
Visual JSON transformation and jq field mapping engine
Vector similarity search and persistent long-term memory
Relational database CRUD on open-source NocoDB tables
Lightweight SQLite state, auth and checkpoint persistence
High-speed local speech-to-text audio transcriber
Synthesizes low-latency natural agent spoken responses
Periodic automated execution (e.g. 0 9 * * *)
Trigger graphs via external HTTP POST webhooks
Broadcasts output directly to Discord, Slack & Telegram
Connect any OpenAPI endpoint or Model Context Protocol tool
Six battle-tested open-source tools embedded natively  no subscriptions, no paywalls, no vendor lock-in.
Privacy-first metasearch querying Google, Bing, Reddit, DuckDuckGo and ArXiv concurrently with zero API keys or rate-limit paywalls.
Blazing fast open-source crawler that extracts clean, structured markdown with noise/ad removal and token-efficient formatting.
Enterprise document parsing engine by IBM Research that turns complex research PDFs, multi-column papers, and tables into markdown.
Stateless microservice that renders agent-generated Markdown, HTML, and LaTeX into publication-ready PDF documents on demand.
High-performance vector similarity search engine powering long-term conversational memory and semantic knowledge retrieval.
PocketBase provides single-file SQLite state persistence; NocoDB provides smart relational Airtable-style spreadsheet APIs.
11.6k+ n8n flows, 290+ Dify blueprints, and 136k+ MCP servers  all importable in one click.
Direct live access to the entire n8n template registry. Search by apps, triggers, and automations. Agent Hub automatically parses n8n JSON nodes and wires them onto the visual multi-agent canvas.
Import multi-step LLM chains, agent loops, and RAG knowledge pipelines created for Dify.ai. Our universal converter translates Dify DSL YAML files into Agent Hub graphs with live execution.
Unified discovery across Smithery.ai, Glama.ai, Composio, Arcade, and mcp.so. Mount remote MCP tools, inspect parameter schemas, and connect Cursor/Claude as clients.
Circuit-breaker failover across Groq and OpenRouter  zero cost, 512k context, 750 tokens/second.
Zero-cost multi-provider catalog with automated circuit-breaker failover
100% FREEDeep document ingestion and long-chain execution traces per prompt
LONG CONTEXTUltra-fast streaming for real-time agent loops & supervisor routing decisions
LIGHTNING FASTReasoning, code, vision OCR, embeddings, TTS, audio & safety guardrails
FULL SPECTRUMNear-zero initial turn delay for interactive, responsive agent loops
LOW LATENCYAutomatic fallback to free tiers with zero subscription or billing risk
$0 FOREVERUp to 262k context · Multi-step logic & self-reflection loops
256k context · TypeScript, Python, JSON schema & SQL
Up to 750 t/s · Ultra-fast edge routing & triage turns
128k context · UI screenshots, diagrams, papers & charts
Dense semantic embeddings for Qdrant long-term memory
Streaming STT transcription & natural neural TTS synthesis
Sub-260ms policy enforcement & output validation gates
openrouter/free dynamically routes to the healthiest capacity
Designed from the ground up for autonomous multi-agent orchestration  not a repurposed ETL tool.
| CAPABILITIES & ARCHITECTURE | AGENT STUDIO | N8N | DIFY.AI |
|---|---|---|---|
| Multi-Agent Supervisor & Critic Loops | Native Visual Canvas (Drag-and-Drop) | Linear DAG only (No multi-agent loops) | Limited multi-agent (Primarily single agent) |
| Zero-Key Open-Source Tools Built-in | SearXNG, Crawl4AI, Docling, Gotenberg, Qdrant | Requires paid external API keys | Limited built-in tools |
| Template Ecosystem Compatibility | 11.6k+ n8n + 290+ Dify + 136k+ MCP | n8n only | Dify only |
| Model Context Protocol (MCP) Hub | Full Client & Server (136k+ servers) | Community node add-ons only | No native MCP protocol support |
| HITL Write Locks & Idempotency | Single-Use Database Tokens & Explainer | Generic webhook wait (No idempotency lock) | Basic user input pause |
| Real-Time Observability & Heatmaps | Live SSE Glow + Latency Heatmap + Replay | Static step logs after completion | Basic streaming logs |
| Free LLM Auto-Failover Router | 28+ Free Models across 8 Tiers with Auto-Routing | Single API key failure terminates run | Manual fallback provider config |
Ghost dry-run previews, per-node latency heatmaps, time-scrubber replay, and hard budget caps.
Run the interpreter in fast-forward against live state  nodes light up showing exactly what path a run would take without writing anything or spending tokens.
Per-node latency, token, and dollar costs rendered straight onto the canvas. Toggle heatmap mode to spot slow or expensive branches at a glance.
A timeline scrubber replays any past execution  nodes glow and dim in sync with adjustable playback speed so you can debug divergent paths.
Set max cost, token, and step caps per node. The interpreter stops runaway agents before unexpected bills occur.
12 advanced capabilities that make Agent Hub the developer-first choice for serious AI orchestration.
Connect remote SSE and stdio Model Context Protocol servers (GitHub, Postgres, Slack, Brave) or expose Agent Hub workflows as MCP tools to Cursor & Claude.
Browse and import community n8n workflows directly into visual Agent Hub graphs with automatic node and parameter translation.
Import Dify.ai DSL YAML and workflow templates directly into multi-agent canvas graphs with 1-click execution.
Browse public APIs (Google, Stripe, Azure, AWS, GitHub) from APIs.guru, install 1-click free tool packs, or import any Swagger/OpenAPI URL.
One click runs layered BFS auto-layout over any hand-built graph, with snap-to-grid guides so complex multi-agent designs stay immaculate.
Monaco prompt editor with {{ results.node.field }} autocomplete, live token-count feedback, and 1-click AI prompt prompt engineering.
Side-by-side visual diff of two graph versions  nodes added/removed, edges rerouted  with instant one-click rollback.
Collapse any complex agent branch into a reusable component node with typed inputs and outputs  nest graphs up to 8 levels deep.
Neon/cyberpunk default, graphite minimal, and high-contrast themes  persisted per user with full responsive dark-mode support.
Render any graph and its live trace as an embeddable, read-only snapshot link  perfect for documentation, PR reviews, or Slack.
Persist every step response and replay past executions with exact recorded outputs for non-LLM nodes to quickly debug logic branches.
Run the interpreter in fast-forward dry-run against live state  nodes illuminate showing exactly what would happen with zero token spend.
Idempotency tokens, tenant isolation, circuit-breakers, and atomic transactions at every layer.
Every approved write action generates a single-use token, enforced atomically in the database  replays and concurrent duplicates are blocked.
Strict PostgreSQL tenant boundaries isolate skills, versions, graph executions, and approval records per user account.
Enforces maximum step boundaries and loop cycles to prevent infinite loops, runaway costs, and resource exhaustion.
A single model failure never stops a run  the router parks the failing provider in adaptive cooldown and transparently moves to the next healthy model.
Skill creation, draft rotation, publish, and execution traces commit in atomic transactions  a crash can never orphan data.
Every mutation writes a structured log and audit row (SKILL_PUBLISHED, APPROVAL_GRANTED, RECOVERY_STARTED) traced back to the acting user.
Everything you need to know about Agent Hub's architecture and capabilities.
Start building autonomous multi-agent workflows  free, open-source, and self-hostable.