# Countly vs Fullstory (slim)

> Fullstory scores 62.6 (B) on agent readiness against Countly's 54.8 (C), and leads in 5 of 7 scored categories. Countly leads on schema & documentation and maintenance & community. Both do analytics query. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/countly-vs-fullstory.md (~2,400 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/countly-vs-fullstory.json · canonical https://www.anchorterminal.com/compare/countly-vs-fullstory
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Fullstory scores 62.6 (B) on agent readiness against Countly's 54.8 (C), and leads in 5 of 7 scored categories. Countly leads on schema & documentation and maintenance & community. Both do analytics query.

- Countly: C 54.8, rank #607 of 842 · https://www.anchorterminal.com/tools/countly.min.md
- Fullstory: B 62.6, rank #382 of 842 · https://www.anchorterminal.com/tools/fullstory.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. Ahead on Schema & documentation, 75 against 62; Maintenance & community, 80 against 62. Also Runs on your own machine; Open source.
- Fullstory, good for An agent that sends server-side events and user properties, fetches a session's events or an AI summary for support or debugging, or exports a segment. Ahead on Reliability, 65 against 28; Agent ergonomics, 77 against 66; Payments & pricing, 25 against 17; Transparency & trust, 81 against 70.

| Category | Countly | Fullstory |
| --- | --- | --- |
| Reliability (16%) | 28 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 62 |
| Agent ergonomics (13%) | 66 | 77 |
| Security & auth (14%) | 63 | 65 |
| Payments & pricing (10%) | 17 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 62 |
| Transparency & trust (7%) | 70 | 81 |

| Fact (where they differ) | Countly | Fullstory |
| --- | --- | --- |
| Vendor | Countly Ltd | Fullstory, Inc. |
| Hosted endpoint | `https://mcp.count.ly/mcp` | `https://api.fullstory.com` |
| Transports | HTTP, stdio, Streamable HTTP | HTTP |
| 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 | Proprietary service under Fullstory's master services agreement. The skills repository and the Node SDK on GitHub are MIT |
| Tools exposed | 209 | none |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Last release | 2026-10-07 | 2026-10-05 |
| Terms last updated | 2026-09-25 | 2026-05-20 |
| Privacy policy last updated | 2026-09-25 | 2025-05-19 |
| 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 | 6.4k npm/wk |