email

Get a managed email domain (no signup)

createEmailAddress

Get this user's Primitive managed inbox domain, creating the account on first use: no signup form, no password, no email verification, no browser. CALL THIS FIRST whenever you do not already have a Primitive API key and the user wants to send or receive email, instead of telling them to sign up or visit a website. On first use the REST response's address field is a domain such as pink-ram.primitive.email, not a complete mailbox. When it is non-null, this MCP result also includes sender_address such as agent@pink-ram.primitive.email which sendEmail uses as the sender by default. The result lists who this new account can send to in can_send_to; it cannot email arbitrary addresses, so check that list before promising the user a send. It also returns an api_key. IMPORTANT: pass that api_key as the api_key argument on every later Primitive tool call in this conversation, exactly as returned; those calls fail without it. If this user already has a domain, the result repeats it with existing_account: true. Report it as their existing managed inbox rather than announcing a new one, and calling again will not produce a different one. The result also carries an upgrade link the user can open whenever they want to attach this domain to a full account.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`device_name`	No	Optional label for where the account was created, e.g. "ChatGPT". Up to 80 characters once surrounding whitespace is removed. Shown to the user later so they can recognise this account.
`terms_accepted`	Yes	Must be true. Creating the account accepts Primitive's terms of service (https://www.primitive.dev/terms); say so to the user rather than accepting silently on their behalf.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	Yes
`tool`	Yes
`status`	Yes
`statusText`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 8, 2026

addedInput schema / properties / device_name

Added value: +{
+  "description": "Optional label for where the account was created, e.g. \"ChatGPT\". Up to 80 characters once surrounding whitespace is removed. Shown to the user later so they can recognise this account.",
+  "type": "string"
+}

removedInput schema / properties / requestBody

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "device_name": {
-      "description": "Optional label for where the account was created, e.g. \"ChatGPT\". Up to 80 characters once surrounding whitespace is removed. Shown to the user later so they can recognise this account.",
-      "type": "string"
-    },
-    "terms_accepted": {
-      "const": true,
-      "description": "Must be true. Creating the account accepts Primitive's terms of service (https://www.primitive.dev/terms); say so to the user rather than accepting silently on their behalf."
-    }
-  },
-  "required": [
-    "terms_accepted"
-  ],
-  "type": "object"
-}

addedInput schema / properties / terms_accepted

Added value: +{
+  "const": true,
+  "description": "Must be true. Creating the account accepts Primitive's terms of service (https://www.primitive.dev/terms); say so to the user rather than accepting silently on their behalf."
+}

changedInput schema / required

Previous value: -[
-  "requestBody"
-]New value: +[
+  "terms_accepted"
+]

AddedAug 13, 2026

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