Grafbase MCP server

Connect Grafbase to Claude, ChatGPT, Cursor, Claude Code, Codex, Gemini, GitHub Copilot and any other MCP client, for your whole team. Metorial adds security, governance, and tracing, and gives everyone one Magic MCP URL to connect.

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What you can do with the Grafbase MCP server

Ask your agent in plain language. Each of these maps to a real tool on the server.

  • Use the list subgraphs tool in Grafbase
  • Use the delete branch tool in Grafbase
  • Use the get branch tool in Grafbase
  • Use the get graph tool in Grafbase
  • Use the publish subgraph tool in Grafbase
  • Use the create branch tool in Grafbase

Supported Tools

list_subgraphs

List Subgraphs

Lists all published subgraphs in a branch of a federated graph. Returns each subgraph's name, endpoint URL, and schema definition.

delete_branch

Delete Branch

Deletes a branch from a federated graph. The production branch (typically "main") cannot be deleted.

get_branch

Get Branch

Retrieves details about a specific branch of a federated graph, including its configuration and operation check settings.

get_graph

Get Graph

Retrieves details about a federated graph including its branches, account information, and configuration. Look up by account/graph slug pair or by graph ID directly.

publish_subgraph

Publish Subgraph

Publishes a subgraph schema to the Grafbase schema registry. When published, the registry composes the subgraph with all other subgraphs in the branch to create a unified federated schema. Republishing an unchanged schema is safe and has no side effects. If composition fails, the change is not successfully published and the federated graph continues running with the previous working schema.

create_branch

Create Branch

Creates a new branch on a federated graph. Branches enable different environments with independent schema registries and configurations. Grafbase requires a self-hosted graph for branch creation.

execute_graphql

Execute GraphQL Query

Executes an arbitrary GraphQL query or mutation against the Grafbase Management API. Use this for operations not covered by other tools, or to access the full capabilities of the Grafbase API. The Grafbase API has introspection enabled, so you can use this to explore the schema with introspection queries.

create_graph

Create Graph

Creates a new federated graph in a Grafbase account. Requires the account ID and a slug for the new graph. The slug must be unique within the account.

check_subgraph

Check Subgraph Schema

Runs composition and breaking change checks against a subgraph schema without publishing it. Use this in CI/CD workflows to validate schema changes before they go live. Detects breaking changes including: field removals, type changes, removed arguments, new required fields, and more. Also runs lint checks for naming conventions.

delete_graph

Delete Graph

Permanently deletes a federated graph and all its branches, subgraphs, and associated data. This action cannot be undone.

get_schema

Get Schema

Retrieves the GraphQL schema for a federated graph. Can fetch either the composed federated schema or an individual subgraph's schema. Use without a subgraph name to get the full composed schema. Specify a subgraph name to get that specific subgraph's SDL.

get_viewer

Get Current User

Retrieves the authenticated user's profile and their organization memberships. Use this to discover the current user's identity, available organizations, and account slugs needed for other operations.

get_account

Get Account

Retrieves an account by its slug and returns the account ID needed to create graphs. Call get_viewer to discover available organization slugs.

list_graphs

List Graphs

Lists a page of graphs in an account and returns graph IDs for graph, branch, publishing, and schema-check operations. Call get_viewer to discover available organization slugs.

Connect Grafbase to your AI client

Every client uses the same Magic MCP URL, and so does any other MCP client. Add it once and sign in with SSO.

  1. Enable Grafbase in Metorial. In your Metorial portal, enable the Grafbase MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
  2. Add a custom connector. Open Customize, then Connectors. Select Add, then Custom, then Web.
  3. Paste your Metorial MCP URL. Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>) and continue.
  4. Sign in. Select Add and sign in to load Grafbase tools.

Run Grafbase through the Metorial gateway

One governed layer for every app your agents reach, not a separate connector per tool.

  • Give Grafbase and every other app to your whole team through one MCP gateway, behind your SSO.
  • Scope which teams and agents can use Grafbase tools with role-based access control, and trace every call.
  • Prefer to run it yourself? Metorial is open source and self-hostable.

More integrations teams use with Grafbase

Google Sheets

Create, read, and update spreadsheets and their cell data. Read and write values to individual cells, ranges, or multiple ranges using A1 notation or named ranges. Apply cell formatting including text styles, backgrounds, borders, number formats, and conditional formatting. Manage sheets (tabs) within a spreadsheet—add, delete, copy, rename, and reorder them. Create and manage embedded charts, pivot tables, filter views, data validation rules, protected ranges, named ranges, and merged cells. Perform batch operations to apply multiple updates atomically.

GitHub

Manage repositories, issues, and pull requests. Create and configure branches, star repositories, review code, and merge changes. Automate CI/CD workflows with GitHub Actions, manage workflow runs, secrets, and artifacts. Track issues with labels, milestones, and assignees. Search across code, repositories, issues, and users. Manage organizations, teams, and memberships. Create and manage projects, gists, packages, deployments, and environments. Access security alerts including code scanning, secret scanning, and Dependabot alerts. Read and write file contents in repositories. Manage webhooks, notifications, and codespaces.

Salesforce

Manage CRM data including Accounts, Contacts, Leads, Opportunities, Cases, and custom objects. Create, read, update, and delete records. Query data using SOQL and search across objects using SOSL. Perform bulk data operations for large-scale imports, exports, and migrations. Execute composite requests to batch multiple operations in a single API call. Access analytics, reports, and dashboards. Manage files and attachments associated with records. Interact with Chatter feeds, posts, and groups for social collaboration. Manage org metadata including custom objects, fields, layouts, and workflows. Query data using GraphQL for precise data retrieval across related objects.

Sharepoint

Manage SharePoint sites, document libraries, lists, and files. Create, read, update, and delete lists and list items with custom columns. Resolve site users to numeric Person/Group LookupId values. Upload, download, move, copy, and version files in document libraries. Search across sites, files, folders, lists, and list items using Microsoft Search. Manage permissions at site, list, and item levels with granular access control. Define and manage content types and site columns. Retrieve site properties and search for sites across Microsoft 365.

Airtable

Create, read, update, and delete records in Airtable bases and tables. Manage base schemas including creating tables and fields. Filter records using formulas, sort by fields, and scope queries to specific views. Upsert records to find, create, or update in a single call. Upload attachments to records, read and write record comments, list accessible bases, and receive real-time base change events through webhooks.

Google Drive

Upload, download, create, copy, move, rename, trash, and permanently delete files and folders in Google Drive. Search for files using complex queries filtering by name, MIME type, owner, modification date, labels, and other metadata. Share files and folders with specific users, groups, or domains with role-based permissions (owner, writer, commenter, reader). Manage shared drives and their members. Export Google Workspace files (Docs, Sheets, Slides) to standard formats like PDF, DOCX, and XLSX. Track file revision history and restore earlier versions. Create, read, update, and delete threaded comments and replies on files. Read label definitions and search files by label. Browse the Drive apps installed for your account. Store app-specific data in a hidden per-user folder.

Technical notes for Grafbase

Discover Grafbase accounts and graphs, manage federated graphs and branches, publish subgraph schemas, run schema checks, retrieve schema SDL, and execute custom GraphQL operations.

Frequently asked questions

Common questions about connecting Grafbase to AI agents with Metorial.

  1. How many tools does the Grafbase MCP server have?
    The Grafbase MCP server exposes 14 tools, including List Subgraphs, Delete Branch, Get Branch. Each one is governed and traced through Metorial.
  2. Grafbase exposes tools your agents call on demand; it does not publish event triggers yet. Everything still runs through one governed MCP URL.
  3. Any MCP client, including VS Code, Windsurf, Zed, OpenCode and Grok. Each one reaches the Grafbase MCP server through the same Metorial URL.
  4. Use role-based access control to decide which teams, users, and agents can use Grafbase and which of its tools they can call.
  5. Yes. Metorial is open source, so you can run the Grafbase MCP server yourself or use the hosted gateway.

Connect Grafbase to production AI agents

See how Metorial gives your team governed access to Grafbase, with tracing and security controls built in.

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