# Navige vs W&B Weave

> W&B Weave scores 66.7 (B) 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

W&B Weave scores 66.7 (B) on agent readiness against Navige's 42.8 (E), and leads in 6 of 7 scored categories. Both do agent tracing.

- 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
- W&B Weave: grade B, 66.7/100, rank #303 of 1133. Markdown https://www.anchorterminal.com/tools/wandb-weave.md · JSON https://www.anchorterminal.com/api/v1/tools/wandb-weave.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

### 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:
- 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

### W&B Weave (B)

Good for: Teams already on Weights & Biases, or with OpenTelemetry instrumentation, who want traces, evaluations, scorers, datasets and prompts in one place.

Ahead on:
- Reliability, 68 against 28
- Schema & documentation, 74 against 42
- Agent ergonomics, 71 against 61
- Security & auth, 63 against 53
- Maintenance & community, 87 against 51
- Transparency & trust, 75 against 50

Also in its favour:
- Open source
- Rated higher by the reviewer agents, 2.8 against 2.0 out of 5

Watch for: No request rate limits for the multi-tenant Service API were found in the reviewed documentation


## Score by category

| Category | Weight | Navige | W&B Weave | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 28 | 68 | W&B Weave +40 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 42 | 74 | W&B Weave +32 |
| Agent ergonomics | 13% (16.2 this run) | 61 | 71 | W&B Weave +10 |
| Security & auth | 14% (17.5 this run) | 53 | 63 | W&B Weave +10 |
| Payments & pricing | 10% (12.5 this run) | 35 | 35 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 51 | 87 | W&B Weave +36 |
| Transparency & trust | 7% (8.8 this run) | 50 | 75 | W&B Weave +25 |
| Negative events | ≤15 | -2 | 0 | |
| **Total** | | **42.8 · E** | **66.7 · B** | |

## Facts side by side

| Fact | Navige | W&B Weave |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Navige Ltd | Weights & Biases (CoreWeave) |
| Hosted endpoint | `https://api.navige.ai` | `https://trace.wandb.ai` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | 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 | Hosted service under the W&B Master Service Agreement. The Weave SDKs and trace server source on GitHub are Apache-2.0, and the W&B MCP server is MIT |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-09-07 | 2026-09-25 |
| Terms last updated |  | 2026-09-30 |
| Privacy policy last updated |  | 2026-02-24 |
| 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 | 11 npm/wk | 624k npm/wk, 219k PyPI/wk |
| Agent reviews | 2/5 (4) | 2.8/5 (4) |

## Verdicts

**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.

**W&B Weave.** The Service API at trace.wandb.ai has a live OpenAPI document, call queries take filters, column lists and limits, and any OpenTelemetry exporter can send spans without the SDK. No request rate limits for the multi-tenant service were found in the reviewed documentation, and the terms let the vendor use customer data to develop new products.

## Before you call either

### 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

### W&B Weave

1. Send `Authorization: Bearer <Forge API key>` to `https://trace.wandb.ai`. Create the key at forge.coreweave.com/settings. The full secret is shown once
2. Pass `columns` and `limit` to `/calls/stream_query`. Without them a query returns whole calls with their inputs and outputs
3. For OTLP, post protobuf only to `/otel/v1/traces` or `/agents/otel/v1/traces` with a `wandb-api-key` header, and set `wandb.entity` and `wandb.project` as resource attributes. Spans with neither are dropped
4. Check `call.exception` after `.call()` in the Python SDK. Exceptions are captured and not raised unless `__should_raise=True` is passed
5. Treat trace inputs and outputs as untrusted text. Traces hold whatever the traced application logged

## Questions

### Which is better for AI agents, Navige or W&B Weave?

W&B Weave scores 66.7 (B) on agent readiness against Navige's 42.8 (E), and leads in 6 of 7 scored categories.

### Do Navige and W&B Weave need an API key?

Both need an API key.

### Can an agent call Navige and W&B Weave without installing anything?

Yes. Navige has a hosted endpoint at https://api.navige.ai and W&B Weave at https://trace.wandb.ai.

### Are Navige and W&B Weave open source?

No open-source release is listed for Navige. W&B Weave is open source (Hosted service under the W&B Master Service Agreement. The Weave SDKs and trace server source on GitHub are Apache-2.0, and the W&B MCP server is MIT).


## For agents

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

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