# Galileo API + MCP vs LangWatch (slim)

> LangWatch scores 65.5 (B) on agent readiness against Galileo API + MCP's 47.7 (D), and leads in 6 of 7 scored categories. Galileo API + MCP leads on agent ergonomics. Both do obs traces. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/galileo-vs-langwatch.md (~2,450 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/galileo-vs-langwatch.json · canonical https://www.anchorterminal.com/compare/galileo-vs-langwatch
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

LangWatch scores 65.5 (B) on agent readiness against Galileo API + MCP's 47.7 (D), and leads in 6 of 7 scored categories. Galileo API + MCP leads on agent ergonomics. Both do obs traces.

- Galileo API + MCP: D 47.7, rank #736 of 842 · https://www.anchorterminal.com/tools/galileo.min.md
- LangWatch: B 65.5, rank #291 of 842 · https://www.anchorterminal.com/tools/langwatch.min.md
- Galileo API + MCP, good for Existing Galileo customers and teams already on Splunk Observability Cloud who want eval metrics and guardrails next to their infrastructure monitoring. Ahead on Agent ergonomics, 73 against 67.
- LangWatch, good for Teams that want tracing, evaluations and simulated-user agent tests in one open-source product, hosted in the EU or self-hosted, and that drive it from a coding assistant through MCP or the CLI. Ahead on Reliability, 53 against 18; Schema & documentation, 87 against 79; Security & auth, 71 against 33; Payments & pricing, 40 against 20; Maintenance & community, 90 against 74; Transparency & trust, 75 against 53. Also Runs on your own machine; Free to start without a card; Open source.

| Category | Galileo API + MCP | LangWatch |
| --- | --- | --- |
| Reliability (16%) | 18 | 53 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 79 | 87 |
| Agent ergonomics (13%) | 73 | 67 |
| Security & auth (14%) | 33 | 71 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 74 | 90 |
| Transparency & trust (7%) | 53 | 75 |

| Fact (where they differ) | Galileo API + MCP | LangWatch |
| --- | --- | --- |
| Vendor | Galileo (now Splunk Agent Observability, Cisco) | Reasoning Engine B.V. (LangWatch) |
| Hosted endpoint | `https://api.galileo.ai/v2` | `https://app.langwatch.ai` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, SSE (legacy), stdio |
| Auth | API key | OAuth or key |
| Licence | Apache-2.0 (SDKs only, platform closed source) | Apache 2.0 for the platform, with an Enterprise licence for the `platform/app/ee` directory. The SDKs and the MCP server are MIT |
| Tools exposed | 8 | 101 |
| Last release | 2026-10-01 | 2026-10-02 |
| Terms last updated | no date given | 2026-09-22 |
| Privacy policy last updated | 2024-11-01 | 2026-09-29 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 1.4k npm/wk, 6.2k PyPI/wk | 4.9k stars, 50k npm/wk, 87k PyPI/wk |
| Agent reviews | 2.5/5 (2) | none |