Imap MCP Server vs Adaptive Cards MCP
A side-by-side look at the Imap MCP Server and Adaptive Cards MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Imap MCP Server for communication work as a local process; choose Adaptive Cards MCP for communication as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Imap MCP Server when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: other.
- You want tools like
imap_add_account, imap_update_account, imap_list_accounts.
Choose Adaptive Cards MCP when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
TRANSPORT, PORT, MCP_API_KEY. - You want tools like
generate_card, validate_card, data_to_card.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 71/100 · Great | 61/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | other | API key required |
| Pricing | Free | Free |
| Required env vars | None listed | TRANSPORTPORTMCP_API_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | 111 | 33 |
| Directory activity | 7 views 0 installs 0 upvotes | 3 views 0 installs 0 upvotes |
| Tools | 40 | 9 |
| Full listing | View Imap MCP Server | View Adaptive Cards MCP |
Tools & capabilities
Imap MCP Server tools 40
imap_add_accountAdd a new IMAP account configurationimap_update_accountUpdate an existing IMAP account. Useful for fixing SMTP settings without removing and re-adding the account.imap_list_accountsList all configured IMAP accountsimap_remove_accountRemove an IMAP account configurationimap_connectConnect to an IMAP accountimap_disconnectDisconnect from an IMAP accountimap_test_accountTest an existing account connection without re-entering credentials. Validates IMAP connectivity and returns folder count and message count.imap_search_emailsNote: on some servers a 'flagged' or starred message carries a custom keyword (e.g. an Open-Xchange color label or Apple's $MailFlagBit*) instead of, or in addition to, the \Flagged system flag. After any flagged search, inspect each result's customKeywords field before concluding a message is or isn't flagged — do not rely on the flagged filter alone. Search for emails matching criteria (sender, recipient, subject, body text, date range, read/flagged status). Use this to FIND messages when you know something about them but not their UID — e.g. "emails from amazon last week", "unread invoices". By default searches a single folder (INBOX). Set searchAllFolders=true to scan every mailbox at once — this catches messages filed away by rules (e.g. a receipt routed to a custom folder); Trash/Spam/Drafts are skipped unless you opt in. By default returns lightweight headers (uid, from, subject, date, and folder when searching across folders); set `includeBody=true` to also return the parsed body in one round-trip instead of paying the N+1 cost of calling imap_get_email per match. For the newest messages without criteria, prefer imap_get_latest_emails.imap_get_emailRead the FULL content of a single email by its UID (body, sender/recipients, date, attachment list, optional raw headers and text-attachment previews). By default the body is returned as clean Markdown in markdownContent and raw HTML is omitted so it never crosses the boundary; set bodyFormat to "html" for the legacy raw htmlContent, or "text" for plain text only. Use after imap_search_emails or imap_get_latest_emails gives you a uid. Body text is truncated to maxContentLength to protect the context window — raise it for long messages. To fetch attachment bytes, use imap_download_attachment.imap_upload_fileUpload a file to the server for use as an email attachment. Returns a path that can be used with imap_send_email attachments. This allows sending large attachments without hitting context window limits. Max size: 26214400 bytes (configurable via IMAP_MAX_UPLOAD_SIZE). Uploads are auto-deleted after 86400000 ms (configurable via IMAP_UPLOAD_TTL_MS).imap_download_attachmentDownload a single attachment from an email (folder + uid + attachment filename/contentId, as listed by imap_get_email). Images are returned inline for viewing; PDFs are saved and their text is extracted inline (extractText); other files are saved to the shared downloads directory (or savePath). Use when the user wants the actual file contents, not just the message body.imap_mark_as_readMark one or many emails as read. Accepts a single UID or an array — pass an array to flag N messages in one IMAP STORE round-trip (useful when triaging).- +28 more on the listing page
Adaptive Cards MCP tools 9
generate_cardConvert any content — natural language description, structured data, or a combination — into a valid Adaptive Card v1.6 JSON. Returns cardId for reference in subsequent tool calls.validate_cardValidate an Adaptive Card JSON against the v1.6 schema. Returns diagnostics with suggested fixes for each error. Accepts card JSON or a cardId from a previous tool call.data_to_cardConvert structured data (JSON array, CSV, key-value object) into the optimal Adaptive Card presentation.optimize_cardOptimize an existing Adaptive Card. Accepts card JSON or a cardId.template_cardConvert a static Adaptive Card into an Adaptive Card Template with ${expression} data binding.transform_cardTransform an Adaptive Card: upgrade/downgrade version, apply host-specific constraints, or flatten nesting.suggest_layoutRecommend the best Adaptive Card layout pattern for a given description.generate_and_validateGenerate an Adaptive Card and immediately validate + optionally optimize it in a single call. Reduces tool-call overhead for common workflows.card_workflowExecute a multi-step card pipeline in a single call. Steps: generate, validate, optimize, template, transform.
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.
Imap MCP Server
{
"mcpServers": {
"imap-mcp-server": {
"command": "npx",
"args": [
"-y",
"imap-mcp-server"
]
}
}
}
Adaptive Cards MCP
{
"mcpServers": {
"vikrantsingh01-adaptive-cards-mcp": {
"command": "npx",
"args": [
"-y",
"adaptive-cards-mcp"
],
"env": {
"TRANSPORT": "YOUR_TRANSPORT_HERE",
"PORT": "YOUR_PORT_HERE",
"MCP_API_KEY": "YOUR_MCP_API_KEY_HERE"
}
}
}
}
Frequently asked questions
Imap MCP Server is categorized under Communication and uses a local stdio subprocess. Adaptive Cards MCP belongs to Communication and uses a local stdio subprocess. Pick Imap MCP Server for communication work and Adaptive Cards 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.
Imap MCP Server is listed as free. Auth: other. Adaptive Cards MCP is listed as free. 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 imap-mcp-server and vikrantsingh01-adaptive-cards-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Imap MCP Server has a quality signal of 71/100 (Great) with 7 views, 0 installs and 111 GitHub stars. Adaptive Cards MCP has 61/100 (Good) with 3 views, 0 installs and 33 GitHub stars.