# Countly vs GrowthBook (slim)

> GrowthBook scores 70.1 (BB) on agent readiness against Countly's 54.8 (C), and leads in every scored category. Both do analytics query. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/countly-vs-growthbook.md (~2,500 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/countly-vs-growthbook.json · canonical https://www.anchorterminal.com/compare/countly-vs-growthbook
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

GrowthBook scores 70.1 (BB) on agent readiness against Countly's 54.8 (C), and leads in every scored category. Both do analytics query.

- Countly: C 54.8, rank #607 of 842 · https://www.anchorterminal.com/tools/countly.min.md
- GrowthBook: BB 70.1, rank #155 of 842 · https://www.anchorterminal.com/tools/growthbook.min.md
- Countly, good for An agent whose owner runs Countly on its own infrastructure or a dedicated Flex server and wants analytics, crash and remote-config data through MCP with per-category permissions. Also No incidents deducted, where GrowthBook loses 3 points for them.
- GrowthBook, good for Teams that want flags and experiments analysed against their own warehouse, with an open-source core and a self-hosted option. Ahead on Reliability, 86 against 28; Agent ergonomics, 76 against 66; Security & auth, 68 against 63; Payments & pricing, 40 against 17; Maintenance & community, 89 against 80. Also Agent-ready, a grade of BB or better; Free to start without a card.

| Category | Countly | GrowthBook |
| --- | --- | --- |
| Reliability (16%) | 28 | 86 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 76 |
| Agent ergonomics (13%) | 66 | 76 |
| Security & auth (14%) | 63 | 68 |
| Payments & pricing (10%) | 17 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 89 |
| Transparency & trust (7%) | 70 | 74 |

| Fact (where they differ) | Countly | GrowthBook |
| --- | --- | --- |
| Vendor | Countly Ltd | GrowthBook, Inc. |
| Hosted endpoint | `https://mcp.count.ly/mcp` | `https://mcp.growthbook.io/mcp` |
| Transports | HTTP, stdio, Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | API key | OAuth or key |
| Pricing | Paid | Freemium |
| Licence | Countly Lite is AGPL-3.0 with added branding terms under Section 7. Enterprise plugins are proprietary. Flex is a hosted service under Countly's terms. The MCP server is MIT | MIT for the core and for the MCP server. Three enterprise directories in the main repository are under GrowthBook's enterprise licence. GrowthBook Cloud is a hosted service under the Customer Agreement |
| Tools exposed | 209 | 4 |
| Read-only variant documented | yes | no |
| MCP registry | not listed | `io.github.growthbook/growthbook-mcp` |
| Last release | 2026-10-07 | 2026-10-06 |
| Terms last updated | 2026-09-25 | 2025-06-19 |
| Privacy policy last updated | 2026-09-25 | 2026-06-08 |
| Customer content may train models | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | yes | not found in the text |
| Popularity | 28k npm/wk | 8.5k stars, 1.3M npm/wk, 433k PyPI/wk |