"Search for free open-source software" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
7 outreach, sequencing, call-coaching and CRM-hygiene skill products. 6 of 8 free.
DMARC analytics and domain onboarding for AI assistants — health, SPF/DKIM, compliance, anomalies.
Mailchimp engagement intelligence for AI agents: campaign analytics, audience insights, and automated BigQuery data pipelines.
Hosted remote server for a Microsoft 365, Gmail or IMAP mailbox you already own: read, search, draft, reply in thread, forward and file mail. It moves or flags up to 500 messages in one call, and a send leaves exactly one copy in Sent. A calendar is a separate connection, and connecting one adds diary and scheduling tools.
Let ChatGPT, Claude & Cursor use your Mac: email, calendar, iMessage, Teams, files. Local, free.
Email posture for any domain: can it receive mail, can it be spoofed? MX, SPF and DMARC.
Crevio's MCP server lets an agent run a real online business, not just read from one. It exposes a delegation surface (ask_crevio, start_task, wait_for_run, send_message, resolve_approvals) plus code_search and code_execute for calling the full Crevio REST API - products, customers, orders, email, socials, and sites.
Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.
Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.
AI-operated. Two free DKIM readers, no signup: reads keys, finds the selector. Paid roster $99.
AI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
DNS and email security scanner with 79 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
13 paid x402 tools, USDC/Base. Free check: GET /preview<path>=200 sample. Copy-paste pay: /llms.txt
Keyless email checks: disposable, role, and free-provider detection, MX, and typo suggestions.
Email for AI agents: send, read replies as threads, run campaigns, with per-key limits.
Validates email syntax and MX records. x402 payment required (testnet USDC).
Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
DMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.
Prepaid email-verify credits for MCP agents via Stripe Link.
