Abscissa
What it does
Safety-aware MCP server for Linear issues, projects, cycles, and dependencies.
- Connects Runs on your computer
- Account or key Needs LINEAR_API_KEY
- Category Developer tools
Install
Pick the AI app you use, then copy the settings.
Passed 3/3 checks · Runs on your computer
First: which AI do you use?
Pick your app and the steps appear below.
Works with Claude, with some setup first
You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Install Python (uv)
One time only; it works for every server that needs Python (uv)
Sign up and create a Abscissa key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Paste these settings and save the file
{ "mcpServers": { "abscissa": { "command": "uvx", "args": [ "abscissa" ], "env": { "LINEAR_API_KEY": "your-value" } } } }Paste the key only into the app’s field, never into a chat or to anyone
Quit Claude and open it again
Try it
Use Abscissa and tell me what you can do for me, then show me one thing✓ If Claude says it is using Abscissa or shows a Abscissa tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
ChatGPT cannot connect Abscissa yet
Abscissa runs on your computer, but ChatGPT can only connect servers that run on the web
What you can do instead
A · Use an app that can connect Abscissa
- You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
- You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
- You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
- You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
B · Others in Developer tools that work with ChatGPT
Picked from the most used in the same category, only ones that connect by address with no key
- Sentry✓ ChatGPT
- Front-End Checklist✓ ChatGPT
- Compiler Explorer✓ ChatGPT
Works with Claude Code, with some setup first
You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
Install Python (uv)
One time only; it works for every server that needs Python (uv)
Sign up and create a Abscissa key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Paste this command and press Enter
claude mcp add --scope user abscissa --env LINEAR_API_KEY=your-value -- uvx abscissaReplace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Type /mcp in Claude Code
You should see Abscissa listed as connected
Try it
Use Abscissa and tell me what you can do for me, then show me one thing✓ If Claude Code says it is using Abscissa or shows a Abscissa tool in the answer, you are connected
Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with Cursor, with some setup first
You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
Install Python (uv)
One time only; it works for every server that needs Python (uv)
Sign up and create a Abscissa key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Fill in your key
In the Abscissa settings, LINEAR_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Open the AI chat in Cursor in Agent mode
Try it
Use Abscissa and tell me what you can do for me, then show me one thing✓ If Cursor says it is using Abscissa or shows a Abscissa tool in the answer, you are connected
Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Works with VS Code, with some setup first
You need a Abscissa key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
Install Python (uv)
One time only; it works for every server that needs Python (uv)
Sign up and create a Abscissa key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Fill in your key
In the Abscissa settings, LINEAR_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Open the AI chat in VS Code in Agent mode
Try it
Use Abscissa and tell me what you can do for me, then show me one thing✓ If VS Code says it is using Abscissa or shows a Abscissa tool in the answer, you are connected
Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version
Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.
JSON settings are under “For developers” below
For developers: Terminal commands and JSON settings
Installed on your computer
Claude Code
claude mcp add --scope user abscissa --env LINEAR_API_KEY=your-value -- uvx abscissaClaude Desktop (claude_desktop_config.json)
{
"mcpServers": {
"abscissa": {
"command": "uvx",
"args": [
"abscissa"
],
"env": {
"LINEAR_API_KEY": "your-value"
}
}
}
}Cursor (~/.cursor/mcp.json)
{
"mcpServers": {
"abscissa": {
"command": "uvx",
"args": [
"abscissa"
],
"env": {
"LINEAR_API_KEY": "your-value"
}
}
}
}VS Code (mcp.json)
{
"servers": {
"abscissa": {
"type": "stdio",
"command": "uvx",
"args": [
"abscissa"
],
"env": {
"LINEAR_API_KEY": "your-value"
}
}
}
}Values you fill in
LINEAR_API_KEYsecret required envLinear personal API key used to authenticate API requests.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
At a glance
- Downloads per weeki
- 67/wk
- Connection
- Runs on your computer
- Latest versioni
- 0.1.3
- Categoryi
- Developer tools
- Published to registryi
- Jul 11, 2026
- Code last changedi
- Jul 11, 2026
- Maker
- KazKozDev
- Packages
pypi: abscissa- Website
- github.com
- Registry status
- Active
Which apps can use it
Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.
Run on your computer in
ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast
Related guides
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 12, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account KazKozDev, which owns the repo
- ✓ Pass
Still maintained
Code last changed 4 months ago
- ✓ Pass
Has a licence
Uses MIT
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Discussion
Ask, share a tip or report that it does not work. Sorted by what people marked helpful.
No posts yet. Be the first to ask or share.
Posts here are written by users, not the PopNx team.
User reviews
No reviews yet
Compared with others in Developer toolsi
- More stars than 68% of the other 5785 servers in this category
- Published to the registry more recently than 20% of the other 5785 servers in this category
- Basic checks equal to or better than 100% of the other 5785 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Abscissa safe?
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
You need to fill in: LINEAR_API_KEY
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed 4 months ago, and the latest version (0.1.3) reached the registry 4 months ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.
What can I use instead?
In the same category: REA, Netdata, Front-End Checklist
Others in the same category
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Netdata
Real-time infrastructure monitoring with metrics, logs, alerts, and ML-based anomaly detection.
Front-End Checklist
Review frontend code and live pages against 386 quality-gated web development rules.
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Abscissa is a Python stdio MCP server for Linear. It turns Linear's GraphQL API into 42 tools for an MCP client: issues, projects, cycles, dependencies, comments, labels, workflow states, teams, and users.
The design priority is deliberate control over project data. Read operations return cursor-paginated results; get_user_issues() resolves the authenticated Linear user; archive and delete tools require an explicit confirm=true before they make a destructive API call. The server stores no credentials and reads LINEAR_API_KEY from its process environment.
Abscissa uses the stdio transport from the Model Context Protocol. Any client that supports stdio MCP can launch it as a local tool process.
Run it
You need Python 3.10+ and a Linear personal API key.
git clone https://github.com/KazKozDev/abscissa.gitcd abscissa python3 -m venv .venv .venv/bin/pip install -e '.[dev]' export LINEAR_API_KEY='lin_api_…' .venv/bin/abscissa
You can also install Abscissa directly from PyPI:
pip install abscissaThe final command starts the MCP server on standard input and output. Register .venv/bin/abscissa as a stdio command in your MCP client, and pass LINEAR_API_KEY through that client's environment or secret manager.
The key remains outside the repository. The .gitignore excludes common local environment files, including .env and .venv.
Example prompts
Once Abscissa is registered in your MCP client, try prompts like:
Show my open Linear issues grouped by project.Create an issue in ENG for fixing onboarding copy. List issues blocked by GEN-32.
Tools
| Area | Tools |
|---|---|
| Identity | get_current_user |
| Issues | create_issue, update_issue, search_issues, get_user_issues, get_issue, assign_issue, add_comment, set_issue_estimate |
| Issue lifecycle | archive_issue, delete_issue |
| Dependencies | list_issue_dependencies, add_issue_dependency, remove_issue_dependency |
| Labels and workflow | list_workflow_states, list_issue_labels, create_label, add_issue_label, remove_issue_label |
| Teams and people | list_teams, get_team, list_users |
| Projects | create_project, get_project, list_projects, list_project_issues, set_issue_project, remove_issue_from_project, update_project, update_project_details, archive_project |
| Project labels | list_project_labels, create_project_label, add_project_label, remove_project_label |
| Project updates | create_project_update, list_project_updates |
| Cycles | create_cycle, update_cycle, archive_cycle, list_cycles, list_cycle_issues |
Search and list tools accept limit and cursor. Their responses keep the same shape:
{"items": [], "next_cursor": null }
Pass a non-null next_cursor back as cursor to request the next page.
list_issue_dependencies returns separate blocks and blocked_by lists. Each item includes its relation_id; use it to remove that dependency. Its next_cursors object has separate cursors for each direction.
Destructive actions
archive_issue, archive_project, and delete_issue are marked with MCP's destructiveHint. They refuse to call Linear until the client invokes them with confirm=true.
Deletion requires explicit confirmation: set confirm=trueThis prevents an accidental tool call from deleting or archiving data. It does not replace Linear's own access controls: the API key still determines which resources the server may read or change.
Verify the checkout
.venv/bin/ruff check ..venv/bin/python -m pytest
The current checkout produces:
All checks passed!.......... [100%] 10 passed
The tests cover pagination bounds and response shape, authenticated-user issue resolution, project membership, cycle queries, dependency direction, confirmation guards, cycle lifecycle operations, and MCP tool registration. GitHub Actions runs the same lint and test commands on Python 3.10, 3.11, 3.12, and 3.13.
Limitations
Abscissa is a local stdio server, not an HTTP service. It needs a running MCP-capable client and a valid Linear API key. The automated suite avoids mutating a real Linear workspace; create, update, archive, and delete behavior is therefore protected by unit tests rather than a live write test.