Phoenix alternatives
Phoenix by Arize AI costs Free (OSS) and is proprietary. If you need something cheaper, open source, self-hosted or simply different, here are 10 alternatives that do the same job, ranked by how widely they are used, with the differences that matter.
10 Phoenix alternatives, by popularity
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An AI gateway and Python SDK that calls 100+ model APIs through one OpenAI-style interface, with spend tracking, budgets, rate limits, fallbacks, guardrails and logging.
- Open source (MIT (enterprise features under a separate licence))
- More widely used (Gid Score 73 vs 44)
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Turns websites into clean Markdown or structured data for AI agents: scrape, crawl, map and search the web through one API.
- Open source (AGPL-3.0)
- More widely used (Gid Score 63 vs 44)
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An open-source platform for tracing, evaluating and debugging LLM apps and agents: every model and tool call with its cost and latency, prompt management, datasets and evaluations.
- Open source (MIT (enterprise features under a separate licence))
- More widely used (Gid Score 63 vs 44)
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Secure cloud sandboxes where AI agents run code, use a filesystem and terminal, and browse, isolated from your own machines.
- Open source (Apache-2.0)
- More widely used (Gid Score 60 vs 44)
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Connects AI agents to 1,000+ apps and APIs with managed authentication, tool search and a sandboxed workbench, so agents can take actions in tools like GitHub, Slack and Gmail.
- Open source (MIT)
- More widely used (Gid Score 55 vs 44)
- Growing fast: usage up 34% in 30 days
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An open-source web crawler and scraper that turns any website into clean, LLM-ready Markdown, run on your own machine or through Crawl4AI Cloud.
- Open source (Apache-2.0)
- More widely used (Gid Score 55 vs 44)
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A memory layer for AI agents and apps: it extracts facts from conversations, stores them and retrieves the relevant ones later, so an agent remembers users and past work across sessions.
- Open source (Apache-2.0)
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Packs a whole repository, or the parts you choose, into one AI-friendly file with a token count per file, so you can give a codebase to a model or agent in one go.
- Open source (MIT)
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Gives coding agents up-to-date, version-specific documentation and code examples for libraries, through an MCP server or API, instead of relying on what the model memorised.
- Open source (MIT)
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Compresses tool outputs, logs, files, RAG chunks and conversation history before they reach the model, so agents use fewer tokens. Runs locally as a library, a proxy, an agent wrapper or an MCP server; originals stay cached and can be retrieved on demand.
- Open source (Apache-2.0)
Phoenix vs alternatives at a glance
| Agent | Price | Free to start | Open source | MCP | Local models | Gid Score |
|---|---|---|---|---|---|---|
| Phoenix | Free (OSS) | ✓ | ✕ | ? | ? | 44 |
| LiteLLM | Free (OSS) | ✓ | ✓ | ? | ? | 73 |
| Firecrawl | Free + $16/mo | ✓ | ✓ | ? | ? | 63 |
| Langfuse | Free (OSS) | ✓ | ✓ | ? | ? | 63 |
| E2B | Free + $150/mo | ✓ | ✓ | ? | ? | 60 |
| Composio | Free + $29/mo | ✓ | ✓ | ? | ? | 55 |
| Crawl4AI | Free (OSS) | ✓ | ✓ | ? | ? | 55 |
| Mem0 | Free (OSS) | ✓ | ✓ | ? | ? | 47 |
| Repomix | Free (OSS) | ✓ | ✓ | ? | ? | 46 |
| Context7 | Free + $10/mo | ✓ | ✓ | ? | ? | 44 |
| Headroom | Free (OSS) | ✓ | ✓ | ? | ? | 42 |
Prices from the vendors' pricing pages; features from official docs (“?” means not documented). Full feature comparison · All prices
FAQ
What is the best alternative to Phoenix?
By usage, the closest alternative is LiteLLM, followed by Firecrawl, Langfuse, E2B.
Is there a free alternative to Phoenix?
None of the closest alternatives has a free tier.
Is there an open-source alternative to Phoenix?
Not among the closest alternatives we track.
How do these Phoenix alternatives compare on price?
LiteLLM: Free (OSS); Firecrawl: Free + $16/mo; Langfuse: Free (OSS); E2B: Free + $150/mo; Composio: Free + $29/mo; Crawl4AI: Free (OSS).
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