A Deno workspace containing a functional JMAP email client and a Model Context Protocol (MCP) server built on top of it. The client package uses jmap-jam for JMAP protocol access; the MCP package…
JMAP is an MCP project maintained in the wyattjoh/jmap-mcp repository. The maintainer describes its purpose as “A Deno workspace containing a functional JMAP email client and a Model Context Protocol (MCP) server built on top of it. The client package uses…”. Read the project documentation for the complete scope.
The project provides a local client configuration using deno. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
The example declares JMAP_SESSION_URL, JMAP_BEARER_TOKEN. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| get_mailboxes | |
| search_emails | |
| get_emails | |
| get_threads | |
| get_email_changes | |
| get_search_updates | |
| mark_emails | |
| move_emails | |
| patch_email_mailboxes | |
| delete_emails | |
| send_email | |
| reply_to_email |
{
"mcpServers": {
"jmap": {
"type": "stdio",
"command": "deno",
"args": [
"run",
"--allow-net=api.fastmail.com",
"--allow-env=JMAP_SESSION_URL,JMAP_BEARER_TOKEN,JMAP_ACCOUNT_ID",
"jsr:@wyattjoh/jmap-mcp@0.6.5"
],
"env": {
"JMAP_SESSION_URL": "https://api.fastmail.com/jmap/session",
"JMAP_BEARER_TOKEN": "YOUR_JMAP_BEARER_TOKEN"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| JMAP_SESSION_URL | Declared in the maintainer’s client configuration. | Yes |
| JMAP_BEARER_TOKEN | Declared in the maintainer’s client configuration. | Yes |
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