# Assemblix

> Visual builder for AI workflows. Every flow ships as a typed HTTP endpoint your backend can call — with persistent state, multi-provider routing, and durable execution.

## What it is

Assemblix is a visual builder for AI workflows. You drag nodes (LLM agents, tools, state updates) onto a canvas, define a typed input/output schema, and Assemblix exposes the workflow as an authenticated HTTP endpoint your backend can call. It is an alternative to Flowise, Langflow and n8n for teams that need production runtime, persistent state across calls, multi-provider routing with fallback, and per-run observability — without writing infrastructure code.

## Key capabilities

- **Workflows-as-API** — Wire two LLM agents and a tool node, hit publish — you get POST /api/run/wf_… with bearer auth, a typed request schema, and a stable contract. No separate deploy. No infrastructure code.
- **Persistent state** — A user pings you three weeks later and says "continue." The workflow already has their cart, last-seen page, and the retry counter from node 4. State lives in Postgres, accessed from any node via state.set/get.
- **Multi-provider** — Run intent classification on Mistral (cheap, fast). Reasoning on Anthropic. Summarization on local Ollama. If OpenAI hits a rate limit, the call falls back to the next provider in the chain — same node, no code change.
- **Observability** — Workflow stalls in production? Open run #exec_d7c9b585 — node 4 waited 12s on OpenAI, retried twice, succeeded on the Anthropic fallback. Nodes, tokens, latency, errors logged per run, queryable across the endpoint.

## Supported LLM providers

OpenAI, Anthropic, Google, Mistral, Ollama.

## API example

```bash
curl -X POST https://app.assmblx.com/api/run/wf_a3f2 \
  -H "Authorization: Bearer $ASSEMBLIX_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "input": { "message": "Tell me about pricing" },
    "state": { "user_id": "u_42" }
  }'
```

Response:

```json
{
  "executionId": "exec_d7c9b585",
  "status": "completed",
  "output": {
    "parsed_message": {
      "intent": "pricing",
      "confidence": 0.94,
      "next_action": "show_pricing"
    },
    "tool_executions": []
  },
  "state": { "user_id": "u_42", "messages_count": 2 },
  "metadata": { "durationMs": 850, "totalSteps": 3 }
}
```

## Pricing

- **Free** — $0 forever. For prototyping and weekend hacks.
  - 3 workflows · 3 endpoints
  - 1,000 API calls / month
  - 1 provider
  - Community support
- **Pro** — $29 /mo. For production solo and small teams.
  - Unlimited workflows & endpoints
  - 50,000 API calls / month
  - All providers + fallback chain
  - Durable runs up to 30 days
  - Priority support
- **Team** — $99 /seat/mo. For scale and collaboration.
  - Everything in Pro
  - 250,000 API calls / month
  - RBAC + SSO
  - Audit log
  - SLA

Need enterprise / SLA? Talk to us →

## Articles

- [Proven AI business impact: numbers and metrics across industries](https://assmblx.com/articles/en/proven-ai-business-impact) — AI is already delivering measurable returns — but the magnitude depends heavily on the industry. A grounded look at the evidence: what actually works, where it works, and why 42% of pilots fail.
- [No-code AI agent platforms: an honest comparison](https://assmblx.com/articles/en/no-code-ai-agent-platforms-comparison) — We compare n8n, Make, OpenAI Agent Builder, Assemblix, and Botpress across learning curve, monitoring, memory, community, and model flexibility. Pick the right tool for your job.
- [Multi-agent systems: how to fix AI agent degradation](https://assmblx.com/articles/en/multi-agent-systems) — Why your AI agent loses quality as you add tools, and how multi-agent architecture solves it. Linear and recursive systems explained with concrete examples.
- [How to build a smart AI assistant with subagents on Assemblix](https://assmblx.com/articles/en/how-to-build-ai-agent-with-subagents) — A step-by-step guide to building an AI agent that classifies and routes requests. Learn how to architect an intelligent routing system without writing any infrastructure code.

## Secondary pages

- [Privacy](https://assmblx.com/privacy)
- [Terms](https://assmblx.com/terms)
- [Contact](https://assmblx.com/contact)
- [Docs](https://assmblx.com/docs)
- [Blog](https://assmblx.com/blog)