# LaunchDarkly vs PostHog (slim)

> LaunchDarkly and PostHog score within a point of each other on agent readiness, 69.2 (B) and 68.4 (B). PostHog leads on reliability, agent ergonomics, security & auth and maintenance & community. Both do analytics flags. Category scores, facts, verdicts and agent notes side by…

- Full: https://www.anchorterminal.com/compare/launchdarkly-vs-posthog.md (~2,350 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/launchdarkly-vs-posthog.json · canonical https://www.anchorterminal.com/compare/launchdarkly-vs-posthog
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

LaunchDarkly and PostHog score within a point of each other on agent readiness, 69.2 (B) and 68.4 (B). PostHog leads on reliability, agent ergonomics, security & auth and maintenance & community. Both do analytics flags.

- LaunchDarkly: B 69.2, rank #165 of 722 · https://www.anchorterminal.com/tools/launchdarkly.min.md
- PostHog: B 68.4, rank #181 of 722 · https://www.anchorterminal.com/tools/posthog.min.md
- LaunchDarkly, good for An agent that creates and targets feature flags, runs rollouts and experiments, reads experiment results and cleans up stale flags. Ahead on Schema & documentation, 89 against 81. Also Runs on your own machine; No incidents deducted, where PostHog loses 7 points for them.
- PostHog, good for An agent that answers product questions in SQL or with funnel, retention and trends queries, and that manages feature flags, experiments and error tracking in the same project. Ahead on Reliability, 74 against 64; Agent ergonomics, 78 against 69; Security & auth, 84 against 66; Maintenance & community, 89 against 82. Also Open source.

| Category | LaunchDarkly | PostHog |
| --- | --- | --- |
| Reliability (16%) | 64 | 74 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 81 |
| Agent ergonomics (13%) | 69 | 78 |
| Security & auth (14%) | 66 | 84 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 82 | 89 |
| Transparency & trust (7%) | 80 | 83 |

| Fact (where they differ) | LaunchDarkly | PostHog |
| --- | --- | --- |
| Vendor | Catamorphic, Co. (dba LaunchDarkly) | PostHog Inc. |
| Hosted endpoint | `https://mcp.launchdarkly.com/mcp/launchdarkly` | `https://us.posthog.com` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Price for analytics flags | not published | $0.0001 per transaction |
| Licence | Proprietary service under LaunchDarkly's terms. The local MCP server is MIT and the ldcli CLI is Apache-2.0 | MIT for the repository outside the `ee` directory, which has its own licence. PostHog Cloud is a hosted service under PostHog's terms |
| Tools exposed | 141 | 1096 |
| Read-only variant documented | no | yes |
| MCP registry | not listed | `io.github.PostHog/mcp` |
| Last release | 2026-10-06 | 2026-10-05 |
| Terms last updated | 2025-09-08 | 2026-06-29 |
| Privacy policy last updated | 2025-04-08 | 2026-06-29 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Popularity | 3.3M npm/wk, 2.2M PyPI/wk | 40k stars, 15.2M npm/wk |