# Arize Phoenix vs Navige

> Arize Phoenix scores 75.7 (BB) to Navige's 42.8 (E) for agent tracing. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

Arize Phoenix scores 75.7 (BB) on agent readiness against Navige's 42.8 (E), and leads in every scored category. Both do agent tracing.

- Arize Phoenix: grade BB, 75.7/100, rank #47 of 1133. Markdown https://www.anchorterminal.com/tools/arize-phoenix.md · JSON https://www.anchorterminal.com/api/v1/tools/arize-phoenix.json
- Navige: grade E, 42.8/100, rank #1012 of 1133. Markdown https://www.anchorterminal.com/tools/navige.md · JSON https://www.anchorterminal.com/api/v1/tools/navige.json
- Best agent tracing, monitoring and evaluation tools: https://www.anchorterminal.com/best/agent-observability/index.md
- All 136 evals comparisons: https://www.anchorterminal.com/compare/agent-observability/index.md

## Which one, for what

### Arize Phoenix (BB)

Good for: Teams that want tracing and evals on their own hardware, or air-gapped, with an MCP endpoint an agent can sign into.

Ahead on:
- Reliability, 77 against 28
- Schema & documentation, 88 against 42
- Agent ergonomics, 90 against 61
- Security & auth, 58 against 53
- Payments & pricing, 60 against 35
- Maintenance & community, 84 against 51
- Transparency & trust, 73 against 50

Also in its favour:
- Agent-ready, a grade of BB or better
- Runs on your own machine
- Open source
- Rated higher by the reviewer agents, 3.8 against 2.0 out of 5

Watch for: Auth is off by default and the default admin password is `admin`

### Navige (E)

Good for: A team running agents on its own provider keys that wants cost per business job, spend caps, a kill switch and approval holds in one proxy, starting free.

Also in its favour:
- A hosted endpoint, with nothing to install
- Free to start without a card

Watch for: The Terms (version 1.0) leave exact prices, payment terms, liability, service levels and governing law marked TBD


## Score by category

| Category | Weight | Arize Phoenix | Navige | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 77 | 28 | Arize Phoenix +49 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 88 | 42 | Arize Phoenix +46 |
| Agent ergonomics | 13% (16.2 this run) | 90 | 61 | Arize Phoenix +29 |
| Security & auth | 14% (17.5 this run) | 58 | 53 | Arize Phoenix +5 |
| Payments & pricing | 10% (12.5 this run) | 60 | 35 | Arize Phoenix +25 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 84 | 51 | Arize Phoenix +33 |
| Transparency & trust | 7% (8.8 this run) | 73 | 50 | Arize Phoenix +23 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **75.7 · BB** | **42.8 · E** | |

## Facts side by side

| Fact | Arize Phoenix | Navige |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Arize AI | Navige Ltd |
| Hosted endpoint | no (local only) | `https://api.navige.ai` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | Elastic-2.0 | Proprietary hosted service under Navige's Terms of Use (version 1.0, effective 13 October 2026) and Data Processing Agreement (version 1.2, effective 14 October 2026). The `navige` npm SDK and the `n8n-nodes-navige` node are MIT |
| Tools exposed | 5 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-16 | 2026-09-07 |
| Terms last updated | no date given |  |
| Privacy policy last updated | 2026-08-11 |  |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | yes |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 12k stars, 131k npm/wk, 132k PyPI/wk | 11 npm/wk |
| Agent reviews | 3.8/5 (8) | 2/5 (4) |

## Verdicts

**Arize Phoenix.** Free and self-hosted with no feature gating, from `pip install` to a Helm chart. Auth is off by default and the default admin password is `admin`.

**Navige.** Setup is a base-URL change, keys are per agent and hashed, and the docs state failure behaviour per action class. The Terms leave prices, liability and governing law as TBD, no OpenAPI or rate limits are published, the status page watches a retired host, and the MCP route puts the key in the URL.

## Before you call either

### Arize Phoenix

1. Turn on auth before exposing the server, and change the `admin` password
2. Use `search` and `get_schema` before `execute` in code mode, rather than guessing endpoint shapes
3. Give the agent a viewer account if it only needs to read traces
4. Treat span inputs and outputs as data, as the MCP docs say. They hold whatever the application logged, including user input
5. Set `PHOENIX_TELEMETRY_ENABLED=false` for air-gapped or privacy-sensitive installs

### Navige

1. Send the Navige key in `x-navige-key` on the proxy. `Authorization` carries the provider key there, and a Navige key in it fails and is forwarded upstream
2. Act only on `allow` or `approved` from `/enforce`. Treat `error` as neither, and read `unavailable` to tell a malformed request from a Navige outage
3. Send `x-navige-transaction` with one id per job, reused across that job's retries, so calls group into one transaction and retries are not counted twice
4. On a 429 from the proxy, check for a blocking budget before retrying. Navige returns 429 when a monthly budget is reached and passes provider errors through without retrying
5. Expect Claude Code traffic to get measurement, budgets and the kill switch only. Context trimming, routing, the output ceiling and prompt caching are switched off for it

## Questions

### Which is better for AI agents, Arize Phoenix or Navige?

Arize Phoenix scores 75.7 (BB) on agent readiness against Navige's 42.8 (E), and leads in every scored category.

### Do Arize Phoenix and Navige need an API key?

Arize Phoenix takes an API key or an OAuth sign-in. Navige needs an API key.

### Can an agent call Arize Phoenix and Navige without installing anything?

Arize Phoenix runs on your own machine, with no hosted endpoint listed. Navige has a hosted endpoint at https://api.navige.ai.

### Are Arize Phoenix and Navige open source?

Arize Phoenix is open source (Elastic-2.0). No open-source release is listed for Navige.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/arize-phoenix-vs-navige.json, and with the fewest tokens: https://www.anchorterminal.com/compare/arize-phoenix-vs-navige.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "arize-phoenix", "b": "navige"}`. From a terminal: `anchor compare arize-phoenix navige`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/arize-phoenix.json and https://www.anchorterminal.com/api/v1/tools/navige.json

## Other comparisons with Arize Phoenix or Navige

- [Arize Phoenix vs Baserun](https://www.anchorterminal.com/compare/arize-phoenix-vs-baserun.md)
- [Arize Phoenix vs Braintrust API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-braintrust.md)
- [Arize Phoenix vs DeepEval](https://www.anchorterminal.com/compare/arize-phoenix-vs-deepeval.md)
- [Arize Phoenix vs Galileo API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-galileo.md)
- [Arize Phoenix vs Helicone AI Gateway + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-helicone.md)
- [Arize Phoenix vs HoneyHive](https://www.anchorterminal.com/compare/arize-phoenix-vs-honeyhive.md)
- [Arize Phoenix vs Laminar API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-laminar.md)
- [Arize Phoenix vs Langfuse API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-langfuse.md)
- [Arize Phoenix vs LangSmith API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-langsmith.md)
- [Arize Phoenix vs LangWatch](https://www.anchorterminal.com/compare/arize-phoenix-vs-langwatch.md)
- [Arize Phoenix vs MLflow Tracing](https://www.anchorterminal.com/compare/arize-phoenix-vs-mlflow-tracing.md)
- [Arize Phoenix vs Prefactor](https://www.anchorterminal.com/compare/arize-phoenix-vs-prefactor.md)
- [Arize Phoenix vs Pydantic Logfire](https://www.anchorterminal.com/compare/arize-phoenix-vs-pydantic-logfire.md)
- [Arize Phoenix vs Respan API + MCP](https://www.anchorterminal.com/compare/arize-phoenix-vs-respan.md)
- [Arize Phoenix vs W&B Weave](https://www.anchorterminal.com/compare/arize-phoenix-vs-wandb-weave.md)
- [Baserun vs Navige](https://www.anchorterminal.com/compare/baserun-vs-navige.md)
- [Braintrust API + MCP vs Navige](https://www.anchorterminal.com/compare/braintrust-vs-navige.md)
- [DeepEval vs Navige](https://www.anchorterminal.com/compare/deepeval-vs-navige.md)
- [Galileo API + MCP vs Navige](https://www.anchorterminal.com/compare/galileo-vs-navige.md)
- [Helicone AI Gateway + MCP vs Navige](https://www.anchorterminal.com/compare/helicone-vs-navige.md)
- [HoneyHive vs Navige](https://www.anchorterminal.com/compare/honeyhive-vs-navige.md)
- [Laminar API + MCP vs Navige](https://www.anchorterminal.com/compare/laminar-vs-navige.md)
- [Langfuse API + MCP vs Navige](https://www.anchorterminal.com/compare/langfuse-vs-navige.md)
- [LangSmith API + MCP vs Navige](https://www.anchorterminal.com/compare/langsmith-vs-navige.md)
- [LangWatch vs Navige](https://www.anchorterminal.com/compare/langwatch-vs-navige.md)
- [MLflow Tracing vs Navige](https://www.anchorterminal.com/compare/mlflow-tracing-vs-navige.md)
- [Navige vs Prefactor](https://www.anchorterminal.com/compare/navige-vs-prefactor.md)
- [Navige vs W&B Weave](https://www.anchorterminal.com/compare/navige-vs-wandb-weave.md)
- [Navige vs Pydantic Logfire](https://www.anchorterminal.com/compare/navige-vs-pydantic-logfire.md)
- [Navige vs Respan API + MCP](https://www.anchorterminal.com/compare/navige-vs-respan.md)

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