"Information about Obsidian (note-taking app or volcanic glass)" matching MCP connectors:

Internet identity for AI agents: register or broker domains, email, DNS - pay by card or USDC.

Verify email addresses and clean lists to improve deliverability and sender reputation.

Verify email deliverability & find business emails (single or bulk) via the Verifox API.

Send transactional emails for AI agents via SMTP. Templates included.

Send transactional pdfs for AI agents via SMTP. Templates included.

Phone, SMS & email for AI agents. One remote MCP server (Streamable HTTP, OAuth or API-key auth, no local install) exposing call, sms, email, and event tools; also usable via CLI, Python SDK, and OpenAPI. Self-hostable, AGPLv3.

Open-source MCP server that gives AI agents access to real email and calendar in one npm install. Solves the problem of AI agents hitting a wall when they need your inbox.

Apollo connects your sales data and outreach tools directly to your agent . Ask it to find leads, look up a company, write and send emails, or check how a campaign is performing. All from a conversation, without opening another tab.

Verify emails — deliverability, disposable/role/free detection, MX validity, domain age.

Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.

Webinar analytics for Zoom Meeting-based webinars: Funnels, transcripts, email engagement

Find verified work emails from a name, company, role or LinkedIn URL, and verify emails you have.

Privacy-first email inboxes for AI agents with MCP mail tools and Composio connect/execute.

MCP server for Nylas — read email, calendars, events and contacts, and send email or create events.

Read, organise and send from your existing email accounts. Nothing sends without your approval.

MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/

Create and manage Templated email templates from any MCP client - bring your own model.

InboxPolicy is an MCP email-verification server for agents. Get an actionable verdict: send, send_with_caution, review, retry_later, or avoid, with confidence and SMTP evidence, plus tools for detailed verification, asynchronous batches, and usage tracking

Send and Receive email via your own address at your domain or unlimited free inboxes. Send Email Receive email with Agent routes or webhooks Route email to other addresses Add your custom domain (unlimited mailboxes) Add unlimited inboxes 3K emails sent per month free per domain 50K for $10/month

AI ops team for founders: approvals queue, inbox triage, briefing, follow-up drafting.