Discover the Best AI Tools

MCP adapter for the PostStack email API, with tools for transactional sending, inbound threads, contacts, templates and deliverability checks. Runs locally over stdio or through the hosted HTTP endpoint. Requires a PostStack API key and hosted service access; previews and checks do not guarantee delivery.

Developer tool classifying extracted PDF text into supported US tax forms and page types through Jev. Requires Node, Poppler for PDF helpers and an API key; some pages need a second request. OCR and tax advice are not provided.

Android assistant that reads visible conversations and offers replies to copy or fill, leaving sending to the user. Requires Android 11+, accessibility/overlay permissions and model credentials; conversation data goes to configured APIs.

Local single-user Outlook MCP reading message bodies and attachments through Microsoft Graph, and attaching local files to drafts or sends. Requires Microsoft app authorization; sending is opt-in per call and attachments must each be under 3 MB. Refresh tokens persist on disk, so local operation still involves cloud access and stored credentials.

Agent-operated outreach infrastructure for domains, mailboxes, sequences, replies and delivery monitoring through MCP, HTTP and CLI. A free fault-injecting sandbox simulates vendors; real operation requires paid provisioning and send activation. The customer agent writes content, and inbox placement or deliverability is not guaranteed.

Self-hosted read-only mail MCP backed by an IMAP-synced local notmuch index and authenticated HTTP. Searches and reads indexed mail without sending, moving or deleting it. Requires mailbox access and deployment; a shared server secret is not per-user mailbox isolation, and returned content may reach the client model.

MCP adapter for Website Toolbox forum categories, topics, posts, users and permissions. Requires an existing forum and its API key. Includes creation, updates and deletion against the live Forum REST API; it is not a read-only forum search tool.

MCP server and CLI for VaEmail transactional mail, newsletters, contacts, sending-domain setup and delivery diagnostics. Requires API access for account operations. Queuing a message is distinct from delivery; feature support and provider event gaps must be checked rather than treating a send response as proof of receipt.

Local-first MCP tools for work memory, time awareness, task breakdown and reframing ambiguous workplace language, aimed at neurodivergent professionals. Requires Python 3.11+, Node.js 22+ and a configured model/client. Local model use is available and cloud providers are opt-in; guardrails are software aids, not diagnosis or demonstrated clinical treatment.

MCP for sending and reading SMS through a paired Android phone and its own number using textbee. Requires a textbee account, API key and active paired device; self-hosted instances are supported. The key has full account access and messages use real mobile service, so no per-message markup does not eliminate carrier costs.

Telegram MTProto terminal client, MCP server and SSE notification stream with messaging, media, scheduling and a local search mirror. Requires Telegram session authentication; the local mirror covers synced data. MCP pushes are off by default, and sending some new reaction emoji requires Telegram Premium.

Rust MCP for multi-account email over IMAP, SMTP, EWS and Microsoft Graph, with OAuth2, searches and bulk operations. Requires provider credentials and configuration. Version 0.4.13 validates all configured sender addresses at startup and rejects dotless domains, so internal-relay addresses may block startup; no universal delivery guarantee is implied.

MCP for listing, searching, reading and sending Zoho Mail messages through its API. Requires Node.js 18+, a Zoho account, OAuth client credentials, a refresh token and account configuration. Mail reads need message and folder IDs; sending uses the configured sender and authorized scopes.

MCP adapter for the Viber Bot REST API, including messages, media, files, broadcasts and webhooks. Requires Node.js 20+ and a bot token. Access is to the configured bot, not a personal inbox; new bot accounts may require commercial onboarding and applicable service terms.

Unofficial local MCP for reading, searching, sending and organizing Hey.com mail through reverse-engineered web endpoints. Uses Bun/TypeScript plus a Python login helper. Session cookies are stored on disk, including for Docker operation; upstream website changes may break access.

Discord management MCP for chat, moderation and server configuration, using the client AI and a configured bot. Requires Node.js 20+ and Discord permissions. Safe mode previews destructive actions with confirmation tokens but can be disabled; it is not an unconditional human-approval guarantee. Elastic License 2.0 restricts managed-service redistribution.

Self-hosted email and task handoff infrastructure with threads, approval records and webhooks over MCP/REST. Existing agent harnesses execute the work; approval records do not execute actions and automatic wakeup needs integration. Requires deployed mail infrastructure and agent identities; self-hosting does not by itself keep model inputs local.

SMTP sending, replies and forwarding from one configured address. Sending is disabled by default and requires credentials, explicit enablement and a recipient allowlist. Supports message-bound confirmation through MCP elicitation or a two-call token fallback; the token fallback is not equivalent to human approval. Mail reading is a separate server.

MCP for Apple services via local macOS AppleScript or cloud IMAP/SMTP, CalDAV and CardDAV. Requires Node.js 20+; local mode needs macOS permissions, cloud mode needs credentials. Notes, Messages, Reminders and Safari are local-only; reading Messages additionally needs imsg and Full Disk Access. Native apps may still sync or send externally.

QQ messaging and group-management MCP built on NapCatQQ/OneBot v11, with files, scheduled wakes and desktop agent wake rules. Requires QQ, NapCat and platform-specific automation dependencies. This is an unofficial bridge with real messaging and moderation effects; it is not a Tencent-supported API.

MCP for CardDAV contacts, address books, groups and photos on an existing server. Requires credentials and Node.js 22+ or Docker. Google Contacts is unsupported; reads and writes are available, with read-only mode opt-in and address-book restrictions configurable.

MCP voice calls and tiered alerts using SIP, local speech recognition and TTS, with the host agent providing the conversation model. Needs SIP setup and speech components; Windows uses WSL2 or Docker. iPhone critical push alerts may require paid Pushover, and the voice dependency has a GPL licensing caveat.

Local stdio MCP for EngageLab agent mailboxes, sending, receiving, replies and conversation threads, with a sandbox option. Requires an EngageLab secret key and Node.js 20+. This package provides no hosted HTTP or OAuth MCP endpoint; live mode sends real email.

Microsoft Graph MCP for Outlook mailbox cleanup: bulk moves, folder restructuring, inbox rules and drafts. Requires Microsoft account authorization and an app ID. No send tool or permanent deletion; read-only mode is optional, while supported bulk operations preview by default.