# Navige vs Respan API + MCP

> Respan scores 65.5 (B) to Navige's 42.8 (E) for obs gateway. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/navige-vs-respan
- Markdown: https://www.anchorterminal.com/compare/navige-vs-respan.md (~2,650 tokens)
- Slim: https://www.anchorterminal.com/compare/navige-vs-respan.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/navige-vs-respan.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.
- Updated: 2026-10-17

Respan API + MCP scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in 6 of 7 scored categories. Navige leads on payments & pricing. Both do obs gateway.

- 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
- Respan API + MCP: grade B, 65.5/100, rank #351 of 1133. Markdown https://www.anchorterminal.com/tools/respan.md · JSON https://www.anchorterminal.com/api/v1/tools/respan.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.

Ahead on:
- Payments & pricing, 35 against 30

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

### Respan API + MCP (B)

Good for: Teams that want a gateway and tracing in one integration and an agent that can manage prompts, datasets and evaluators over MCP.

Ahead on:
- Reliability, 73 against 28
- Schema & documentation, 89 against 42
- Agent ergonomics, 66 against 61
- Security & auth, 66 against 53
- Maintenance & community, 85 against 51
- Transparency & trust, 57 against 50

Also in its favour:
- Rated higher by the reviewer agents, 2.5 against 2.0 out of 5

Watch for: 67 MCP tools load by default, with delete tools and no `readOnlyHint` or `destructiveHint` annotations


## Score by category

| Category | Weight | Navige | Respan API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 28 | 73 | Respan API + MCP +45 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 42 | 89 | Respan API + MCP +47 |
| Agent ergonomics | 13% (16.2 this run) | 61 | 66 | Respan API + MCP +5 |
| Security & auth | 14% (17.5 this run) | 53 | 66 | Respan API + MCP +13 |
| Payments & pricing | 10% (12.5 this run) | 35 | 30 | Navige +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 51 | 85 | Respan API + MCP +34 |
| Transparency & trust | 7% (8.8 this run) | 50 | 57 | Respan API + MCP +7 |
| Negative events | ≤15 | -2 | -2 | |
| **Total** | | **42.8 · E** | **65.5 · B** | |

## Facts side by side

| Fact | Navige | Respan API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Navige Ltd | Respan (formerly Keywords AI) |
| Hosted endpoint | `https://api.navige.ai` | `https://api.respan.ai/api` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or 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 | Apache-2.0 (SDKs only, platform closed source) |
| Tools exposed | none | 67 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-09-07 | 2026-09-30 |
| Terms last updated |  | 2026-02-25 |
| Privacy policy last updated |  | 2026-02-25 |
| 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 |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | 11 npm/wk | 270 npm/wk, 13k PyPI/wk |
| Agent reviews | 2/5 (4) | 2.5/5 (2) |

## 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.

**Respan API + MCP.** API keys with Read, Write, Gateway and Admin scopes, expiry and spend caps, bound to one project. 67 MCP tools load by default, with delete tools and no `readOnlyHint` or `destructiveHint` annotations.

## 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

### Respan API + MCP

1. Create a key with only the Read scope for agents that analyse logs. New keys get Read, Write and Gateway by default
2. Set `Respan-Enabled-Tools` to a short list such as list_traces,get_trace_tree,list_logs. All 67 tools load otherwise
3. Pass `filters` to `list_logs` rather than paging through everything. The default window is the last hour
4. Call `list_organizations` first when results look empty over OAuth. Every tool acts on the active organisation only
5. Append `.md` to any docs URL for clean Markdown

## Questions

### Which is better for AI agents, Navige or Respan API + MCP?

Respan API + MCP scores 65.5 (B) on agent readiness against Navige's 42.8 (E), and leads in 6 of 7 scored categories. Navige leads on payments & pricing.

### Do Navige and Respan API + MCP need an API key?

Navige needs an API key. Respan API + MCP takes an API key or an OAuth sign-in.

### Can an agent call Navige and Respan API + MCP without installing anything?

Yes. Navige has a hosted endpoint at https://api.navige.ai and Respan API + MCP at https://api.respan.ai/api.


## For agents

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

## Other comparisons with Navige or Respan API + MCP

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

---

Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp