Spettro

Freemium#42 of 103 in AI Coding Assistants

Spettro: A low-cost, open-source coding agent for Zed users who want multi-agent workflows. Ranked #42 of 103 in AI Coding Assistants by our editors (5.1/10); pricing: Free plan; best for zed users seeking low-cost agents.

5.1/10★★★☆☆Editor score

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At a glance

• Editor score
  5.1 / 10
• Pricing
  Free plan
• Best for
  Zed users seeking low-cost agents
• Free plan
  Yes
• Paid from
  €5/mo
• Coding agent
  Yes
• Facts checked
  22 Sep 2026

• Where it wins

  • Open-source multi-agent runtime with planning, coding, review, and test roles
  • Supports Anthropic, OpenAI-compatible, and local model providers
  • Includes sandboxing, persistent sessions, repository search, and web tools

• Where it doesn't

  • Editor integration is listed for Zed through ACP
  • The Free plan requires users to bring their own API key
  • Hosted-model plans impose monthly token quotas before additional benefits apply

Our verdict on Spettro

Spettro is an open-source AI coding assistant built for agent-driven work in a terminal or desktop app. It targets developers who want multi-agent delegation, autonomous goal runs, planning and approval before code changes, repository search, diagnostics, and persistent sessions across macOS, Linux, and Windows. Its runtime includes plan, coding, review, documentation, Git, test, and explorer roles, alongside skills, memory, custom slash commands, and hooks.

Pricing is structured from a €0-per-month Free plan to paid tiers at €5, €10, €20, and €150 per month. Free includes all features, multi-agent and MCP support, Ultra mode agent swarm, workflows, community support, and bring-your-own API key access. Lite adds Spettro-hosted models, standard response speed, and up to ~50M tokens per month. Plus raises the allowance to ~100M tokens and adds faster responses, per-repository agent manifests, hooks, command policy, and priority email support. Pro provides up to ~200M tokens, the fastest response speed, unlimited SuperFast after quota, early feature access, and dedicated support. Max raises the allowance to ~1.5B tokens and adds all current and future models, unlimited SuperFast after quota, an SLA guarantee, and a dedicated account manager.

The product’s standout strength is breadth within an agent workflow: approval-aware execution offers ask-first, restricted, and yolo modes; OS sandboxing uses Seatbelt, Landlock, and Mandatory Integrity Control; and tools cover web search, fetching, downloads, screenshots, and interactive PTY sessions. Provider support spans Anthropic, OpenAI-compatible APIs, LM Studio, Ollama, and local models, while ACP connects it with compatible editors such as Zed. Choose Spettro for terminal-first, configurable multi-agent development and low-cost hosted plans. Developers seeking broad editor coverage beyond the listed Zed integration should consider an alternative.

Questions about Spettro

Does Spettro have a free plan? Yes, there is a free plan; paid plans start at €5/mo (Lite).

How much does Spettro cost? Spettro lists 4 paid plans; the lowest is Lite at €5/mo.

What does Spettro run on? macOS, Linux and Windows. It runs as a desktop app and self-hosted.

What does Spettro integrate with? 7 integrations, including Anthropic API, OpenAI-compatible APIs, LM Studio, Ollama and MCP.

Who is Spettro built for? Solo users, small businesses and mid-market companies (our editorial estimate).

Your product? Our editors can test Spettro in depth and publish a review, labelled as paid · from $149/mo →

Spettro pricing

All 5 Spettro plans and prices →

Spettro fact sheet

Spettro integrations

Spettro lists 7 integrations on its own site.

• Anthropic API
• OpenAI-compatible APIs
• LM Studio
• Ollama
• MCP
• Telegram
• Agent Client Protocol

Alternatives to Spettro

• GCGitHub CopilotA broad coding assistant with a free entry point and agent workflows.9.3
• Claude CodeA strong fit for multi-step coding work across codebases, tools, and pull requests.9.2
• DevinA broad autonomous coding workspace with usage-based plan differences.9.1

See all Spettro alternatives →

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Featured on iTechGuides

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

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Last updated 14 Nov 2026 · How we research and update