What is tallybook?
tallybook is a MCP server by magna-nz that local cost tracking for Claude Code and Codex sessions: spend by session, sub-agent and model, week-on-week comparisons, and findings with suggested patches. It is listed under Cloud & infra and has 5 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | magna-nz |
| Repository | magna-nz/tallybook |
| Popularity | 5 GitHub stars |
| Category | Cloud & infra |
| Security | Low risk (96/100) |
| Rank | #2,220 of 4,418 MCP servers; #128 in Cloud & infra |
| License | MIT |
| Last commit | 2026-09-13 |
| Runs | Locally |
| Language | Go |
| Platforms | macOS, Windows, Linux |
Is tallybook safe to install?
tallybook scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 5 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install tallybook?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/magna-nz/tallybook
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add tallybook -- <command from README> claude mcp add --transport http tallybook <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs tallybook for you:
Add the "tallybook" MCP server from https://github.com/magna-nz/tallybook to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.