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Attio MCP
Attio's hosted MCP server for reading and editing records, lists, notes and tasks in an Attio workspace
Official · attio.com Remote (hosted) · Streamable HTTP CRM and sales
Connect your client
Remote (hosted)
Add in one click
Opens the app, which asks before it adds the server.
Or add it by command or config
Claude CodeTerminal
claude mcp add --transport http attio https://mcp.attio.com/mcpClaude (desktop and web)Settings → Connectors → Add custom connector
https://mcp.attio.com/mcpChatGPTSettings → Apps → Advanced → Developer mode, then Create app
https://mcp.attio.com/mcpCursor~/.cursor/mcp.json
{
"mcpServers": {
"attio": {
"url": "https://mcp.attio.com/mcp"
}
}
}VS Code.vscode/mcp.json
{
"servers": {
"attio": {
"type": "http",
"url": "https://mcp.attio.com/mcp"
}
}
}Codex~/.codex/config.toml
[mcp_servers.attio]
url = "https://mcp.attio.com/mcp"Gemini CLITerminal
gemini mcp add --scope user --transport http attio https://mcp.attio.com/mcpWhat it does
Attio MCP is the MCP server Attio runs itself at https://mcp.attio.com/mcp. You connect a client to that address, sign in with your Attio account, and the assistant then works inside your workspace with the same permissions your Attio user has. There is nothing to install or host.
Its 42 tools cover the main parts of the CRM: finding, creating, updating, upserting and merging records of any object (people, companies, deals, custom objects); managing lists and their entries; comments, notes and tasks; searching meetings, call recordings with their transcripts, and synced emails, both by metadata and by topic; workspace members and teams; aggregate reports; and read-only SQL over workspace data on the Enterprise plan.
The endpoint's sign-in metadata (/.well-known/oauth-protected-resource) names app.attio.com as the authorization server and offers the scopes mcp, offline_access and openid. Calls are rate limited per workspace in tiers that share a bucket: 100 requests a second for reads, 25 for writes, 5 for merges, 300 a minute for metadata searches, and 2 a second each for semantic search, reports and SQL.
What it needs
An Attio account in an active workspace, and an MCP client that can add a remote server with OAuth sign-in (Attio names Claude Desktop, Claude.ai, ChatGPT and Cursor). In Claude and ChatGPT it is added from the client's connector or app directory by searching for Attio. The query-particle-sql tool needs Attio's Enterprise plan.
Limits
Hosted only: there is no package or source to run yourself. It reaches one workspace, the one you sign in to, and only what your Attio user may see. SQL is SELECT-only, needs the Enterprise plan and is capped at 2 queries a second; the underlying Query SQL endpoint stops queries after 30 seconds. update-list-entry-by-record-id fails when the record has no entry or several in the list. delete-comment works only on comments you wrote. Calls over the per-workspace tier limits are refused until the bucket refills; the tiers are shared by every tool in them.
Who it suits
Teams already on Attio who want an assistant to look up accounts, log notes and tasks, move pipeline entries or pull reports without writing API code. Because it is Attio's own and signs in as the user, it suits people who would rather not issue API tokens. Pick a self-run server instead when you need to run it on your own machine or control which tools exist: we also list community-built Attio servers, such as attio-mcp-server (npm attio-mcp), that are not published by Attio.
Tools 42
list-objects- Lists the workspace's objects, such as companies, people and deals, with optional fuzzy search
search-records- Full-text search over records by name, email, domain or other indexed attributes
list-records- Lists records of one object with filters and sorting
get-records-by-ids- Fetches full details of records given their IDs
create-record- Creates a person, company, deal or custom-object record
upsert-record- Creates a record or updates the one matching an attribute such as email or domain
update-record- Changes an existing record by its record_id
merge-records- Merges two records of one object into a new record, the primary one's values winning
list-attribute-definitions- Shows an object's attributes with their types and allowed options
list-lists- Lists the workspace's lists, optionally filtered by name or slug
create-list- Creates a list that tracks records of one object type
list-list-attribute-definitions- Shows the entry attributes of a list with types and options
list-records-in-list- Lists a list's entries with their parent records, with filters and sorting
add-record-to-list- Adds a record to a list as a new entry
update-list- Renames a list or changes its API slug or permissions
update-list-entry-by-id- Updates a list entry by its entry_id
update-list-entry-by-record-id- Updates a list entry found by its parent record; fails if there is not exactly one
create-comment- Adds a comment to a record or list entry, or replies in a thread
list-comments- Lists comment threads on a record or list entry, paginated
list-comment-replies- Loads more replies of one comment thread
delete-comment- Deletes a comment you wrote, together with its replies
create-note- Adds a note to a record
search-notes-by-metadata- Finds notes by parent record, author, meeting or creation time
semantic-search-notes- Finds notes by topic with semantic search
get-note-body- Returns the full text of one note
update-note- Appends or prepends text to a note or changes its title
list-tasks- Lists tasks with optional filters
create-task- Creates a task with optional deadline, assignee and linked record
update-task- Changes a task's deadline, status, assignee or linked record
delete-task- Deletes a task
search-meetings- Finds past and upcoming meetings by participant, record or time range
search-call-recordings-by-metadata- Finds call recordings by participant, record, title or time
semantic-search-call-recordings- Finds call recordings by topic with semantic search
get-call-recording- Returns a call recording's details and transcript
search-emails-by-metadata- Finds emails by participant, domain or time range
semantic-search-emails- Finds emails by topic with semantic search
get-email-content- Returns the full body of one email
list-workspace-members- Lists workspace members and their teams
list-workspace-teams- Lists the workspace's teams
whoami- Shows the signed-in user and their workspace membership
run-basic-report- Runs totals, averages and grouped breakdowns over records or list entries
query-particle-sql- Runs a read-only SQL query over workspace data (Enterprise plan)