
ServiceNow MCP Server
io.github.jschullerPublished by GitHub account jschullerv0.9.3Updated Oct 30, 2026
ServiceNow MCP server: Table API, CMDB, schema, aggregates, update sets and four Agent Skills.
Overview
Connects an assistant to a ServiceNow instance so it can query tables, read schemas and CMDB data, run aggregates and review update sets.
- What you can do
- Query, create, update and delete records in any ServiceNow table, and run aggregate counts and stats
- List, read and write CMDB configuration items and follow their relationships
- Inspect table schemas, the current user, system properties and where a table or field is referenced
- List, read and create update sets, set the current one and review its changes
- Read packaged resources such as schemas, instance info and the CMDB class hierarchy, plus four guided skill workflows
- When to use it
- Useful when you work with ServiceNow ITSM or CMDB data and want an assistant to answer questions about records, fields, roles, data quality or pending update sets without clicking through the platform. It suits developers and admins on a developer instance or a company instance with an integration user.
- Requirements
- Runs locally as a Python package started with uvx, so uv must be installed. Needs SERVICENOW_INSTANCE_URL plus credentials: SERVICENOW_USERNAME and SERVICENOW_PASSWORD for basic auth, or SERVICENOW_CLIENT_ID and SERVICENOW_CLIENT_SECRET for OAuth, or SERVICENOW_API_KEY. Network access to the instance is required, and the user's ServiceNow roles decide what is visible.
Installation
In SourceWeft
- Open ServiceNow MCP Server in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
ServiceNow MCP Server
[PyPI] [Downloads] [CI] [License]
Connect Claude Code, GitHub Copilot, Codex, opencode, Antigravity or any MCP client to ServiceNow:
query any table, read schema and CMDB, review update sets. Free, MIT, works on a free developer instance.
uvx mcp-server-servicenow gives an AI assistant the ServiceNow developer data plane: the Table API, the data dictionary, Stats API aggregates, the CMDB and update sets, on any release from Tokyo up. It runs alongside ServiceNow's own MCP servers (how they differ).
What you can ask
- "Which fields does
cmdb_ci_serverhave, including inherited ones?" - "Who holds admin, and which roles are granted directly instead of through a group?"
- "Review update set 'Q3 fixes' before I promote it."
- "Which server CIs are missing an IP address or an owner?"
- "How many open incidents does each assignment group have?" (any table works, not just the platform ones)
Quick start
About ten minutes on a free developer instance. On a company instance, ask your ServiceNow admin for the user in step 2.
1. Get a ServiceNow instance
Sign up for a free Personal Developer Instance (PDI) — it comes with demo incidents, changes and CIs. PDIs hibernate after a few hours idle: wake yours from the developer portal before you start.
2. Create an integration user
Don't connect as admin: new instances refuse REST basic auth for it (why), and the server needs far less.
- Sign in as admin and go to All › User Administration › Users › New.
- User ID
mcp.integration, Identity type Machine (this ticks Web service access only), and tick Internal Integration User. If your form has no Identity type, tick Web service access only yourself. Submit, then open the user again. - Set Password, and keep the password for step 3.
- Roles › Edit: add
itilandsnc_read_only, save.
That user can read incidents, changes, problems, CMDB and aggregates, and can't change anything. Schema, update sets and writes need more: see roles.
3. Add the server to your client
You need uv (uvx runs the server without installing it). In Claude Code:
Or install the Claude Code plugin, which adds the four skills as slash commands. It reads the same SERVICENOW_* variables from the shell that starts Claude Code (details):
Windows (PowerShell)
Install uv with winget install astral-sh.uv, then:
VS Code (GitHub Copilot)
The button adds the server to your VS Code user profile and asks for the instance URL, user and password on first start, storing the password securely. Or add this to .vscode/mcp.json. Use Copilot Chat in Agent mode.
Claude Desktop
Edit claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\):
Codex, opencode, Antigravity, Cursor, pi, the Claude Code plugin and keeping the password out of config files: client setup.
4. Check it works
Ask: "List the 5 most recent incidents." The start-here user holds snc_read_only, so the server lists only the 13 read-only tools. Give the user write roles (and remove snc_read_only) and the 7 write tools appear; your client asks before each write.
No answer? Run the same configuration with --check. It makes read-only requests, prints one line per check (instance reachable, identity, roles, table read, schema, aggregates) and never prints a secret:
Got an answer back? Say which client and ServiceNow release in Show and tell — it tells us what works. Questions go to Q&A.
If it doesn't work
Everything else: run --check (above), then TROUBLESHOOTING.
Tools
20 tools, 5 resources and 4 skills. Full reference: tools, resources and skills.
Resources: table schemas, instance info, the current update set, the CMDB class hierarchy and an encoded-query reference — read without a tool call.
Skills: four guided workflows for the Now Platform, served over MCP as skill:// resources so every client gets them with no plugin:
exploring-tables: schemas, choice lists, a record's history, what touches a table or field, the encoded-query reference;analyzing-access: who holds which roles, team rosters and group members, and what a 403 or a missing field means;reviewing-update-sets: risk categories and a pre-promotion checklist;servicenow-cmdb: CMDB data quality and CSDM conformance.
To run with the tools only, add the server without the plugin (claude mcp add, or an mcp.json entry) and set SERVICENOW_SKILLS=off (or --skills off). off changes only what the server serves: the Claude Code plugin still loads the four skills from its own folder (configuration).
Community skills: skills for applications such as ITSM, and for your own conventions, live in their authors' repositories, each with its own eval results:
- EXTENDING.md covers writing, validating, testing with mocked tools, and sharing them;
- to find them, browse the
servicenow-mcp-skilltopic and Discussions › Skills. This project doesn't vet them.
The incident triage skill that shipped here until 0.9.0 is now an example.
Roles
ServiceNow's ACLs decide what the user can do; the server adds nothing on top.
Per-tool detail: roles per tool. Setting up a company instance: recommended integration identity.
Safety and governance
- Read-only mode —
--read-onlyhides the 7 write tools and refuses any non-GET request. - Read-only identities see read-only tools — when the user holds
snc_read_onlythe write tools are hidden without a flag. A convenience, not a control: ServiceNow refuses those writes anyway. - Table scope lives in ServiceNow — ACLs and REST API access policies on the integration user decide which tables and fields it can read, dot-walks included.
- Audit log — one JSON line per tool call or resource read: who, which table, outcome; written fields by name only, never their values, and secret-like values in queries masked.
- Your client approves writes — every tool is annotated read-only or destructive, so Claude Code, Copilot and Codex ask before a write. Clients that don't ask (opencode by default, pi) need a read-only identity, or
--read-onlywhen the identity can write.
Flags and environment variables: configuration.
Works with
Verified with 0.8.0 on 2026-10-11 against ServiceNow Brazil, and the 0.9.0 skills re-checked in Claude Code and Codex: Claude Code 2.1.296, VS Code 1.140 with GitHub Copilot, Codex CLI 0.162.1, opencode 1.19.0, Antigravity CLI 1.1.20 and pi 1.1.0. Claude Desktop, Cursor and any other client that speaks MCP over stdio or Streamable HTTP should work too; behaviour per client: client setup.
More
- Client setup — every client, the Claude Code plugin, Windows
- Configuration — the recommended identity, OAuth client credentials (headless), API keys, multiple instances, secrets, every setting
- Remote deployment — from source, Streamable HTTP, OAuth 2.1 + PKCE, Docker, Cloud Run
- Alongside ServiceNow's own MCP servers
- Architecture and embedding — mount it in your own FastMCP server
- Write your own skills — the template, the validator, the GitHub Action, sharing
- Privacy — the server talks only to your instance; no telemetry
- Contributing · Changelog · Support · Security
Write your own skills: EXTENDING.md covers the template, the validator and how to share them. Next: MCP prompts.
Related: sn-app-template — a ServiceNow scoped app template for Claude Code + now-sdk that pairs with this server.
License
MIT. An independent project, not affiliated with or endorsed by ServiceNow, Inc. ServiceNow is a trademark of ServiceNow, Inc.
Source: README.md at commit cac68dd
Tools
0Version history
5- v0.9.3LatestOct 29, 2026
- v0.9.2Oct 21, 2026
- v0.9.1Oct 13, 2026
- v0.8.0Oct 12, 2026
- v0.7.0Sep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts