AgentLair vs Jmap MCP
A side-by-side look at the AgentLair and Jmap MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose AgentLair for communication work as a local process; choose Jmap MCP for communication over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose AgentLair when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
AGENTLAIR_API_KEY, AGENTLAIR_EMAIL. - You want tools like
claim_address, send_email, check_inbox.
Choose Jmap MCP when
- You need dedicated capabilities in the Communication domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
JMAP_SESSION_URL, JMAP_BEARER_TOKEN. - You want tools like
get_mailboxes, search_emails, get_emails.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 60/100 · Good | 60/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | Not declared | API key required |
| Pricing | Not declared | BYOK (pay the provider) |
| Required env vars | AGENTLAIR_API_KEYAGENTLAIR_EMAIL | JMAP_SESSION_URLJMAP_BEARER_TOKEN |
| Verified owner | Community listing | Community listing |
| GitHub stars | 5 | 178 |
| Directory activity | 2 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | 15 | 12 |
| Full listing | View AgentLair | View Jmap MCP |
Tools & capabilities
AgentLair tools 15
claim_addressClaim a new @agentlair.dev email address for your agent. No DNS or SMTP setup required. Free tier: up to 3 addresses.send_emailSend an email from an @agentlair.dev address you own to any recipient. No SMTP setup needed.check_inboxCheck the inbox for an @agentlair.dev address. Returns recent messages with sender, subject, and received time.read_messageRead the full content of a specific email message, including the body. Use message IDs from check_inbox.list_addressesList all @agentlair.dev addresses claimed on your account.vault_putStore a value in the AgentLair Vault. Use this to persist API keys, secrets, or any data your agent needs across sessions. Best practice: encrypt sensitive data client-side before storing (the server stores whatever you send).vault_getRetrieve a stored value from the AgentLair Vault by key name.vault_listList all keys stored in your AgentLair Vault (metadata only, values not returned).vault_deleteDelete a key and all its versions from the AgentLair Vault.calendar_create_eventCreate a calendar event on your AgentLair calendar. Events are published via iCal feed for human subscription (Google Calendar, Apple Calendar, Outlook).calendar_list_eventsList events on your AgentLair calendar. Optionally filter by date range.calendar_delete_eventDelete an event from your AgentLair calendar by event ID. Use calendar_list_events to find event IDs.- +3 more on the listing page
Jmap MCP tools 12
get_mailboxesList mailboxes/folders with their IDs, names, and metadata. **Call this first**search_emailsSearch emails with filters. **All filters are AND'd together.** Returns onlyget_emailsRetrieve specific emails by their IDs. Use `properties` to request only what youget_threadsGet email threads by their IDs. Thread IDs come from `get_emails` responsesget_email_changesGet IDs of emails created, updated, or destroyed since a previous state. Use theget_search_updatesGet changes within a previous search query since its `queryState`. Must use themark_emailsMark emails as read/unread or flagged/unflagged.move_emailsMove emails to a different mailbox. Use `get_mailboxes` to find the targetpatch_email_mailboxesAdd or remove selected mailbox memberships without replacing unspecifieddelete_emailsDelete emails permanently (cannot be undone). Prefer moving to Trash viasend_emailSend a new email. Requires either `textBody` or `htmlBody` (or both).reply_to_emailReply to an existing email. Automatically sets To/CC, Re: subject prefix, and
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
AgentLair
{
"mcpServers": {
"agentlair": {
"command": "npx",
"args": [
"-y",
"@agentlair/mcp@latest"
],
"env": {
"AGENTLAIR_API_KEY": "YOUR_AGENTLAIR_API_KEY_HERE",
"AGENTLAIR_EMAIL": "YOUR_AGENTLAIR_EMAIL_HERE"
}
}
}
}
Jmap MCP
{
"mcpServers": {
"wyattjoh-jmap-mcp": {
"url": "https://api.fastmail.com/jmap/session"
}
}
}
Frequently asked questions
AgentLair is categorized under Communication and uses a local stdio subprocess. Jmap MCP belongs to Communication and uses a remote HTTP/SSE transport. Pick AgentLair for communication work and Jmap MCP for communication.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
AgentLair has no declared pricing — check the project's own site. Jmap MCP is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add agentlair and wyattjoh-jmap-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, AgentLair has a quality signal of 60/100 (Good) with 2 views, 0 installs and 5 GitHub stars. Jmap MCP has 60/100 (Good) with 2 views, 0 installs and 178 GitHub stars.