"Email organization system using LLMs with IMAP integration" matching MCP servers:

Real-time email verification API with syntax, MX, disposable detection, role-based flags, quality score 0-100. Built for agent outreach pipelines with pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Find professional email addresses from name + company domain. Tests 15+ patterns against MX records with confidence scoring, with pay-per-call via x402.

MCP server that lets AI validate and create sales funnels (pipelines, stages, custom fields) in Kommo CRM, supporting multiple client accounts with explicit confirmation before writing.

Enables Claude Code to create HubSpot marketing email drafts from Markdown and Word documents with automatic image handling and brand guidelines.

Enables finding and verifying work emails for contacts through a waterfall of provider keys, with per-provider cost attribution and verification after each finder.

Enables AI agents to manage e-commerce operations (products, carts, clients) through WhatsApp via Chatwoot, using MCP tools for inventory, cart, and customer management.

Unifies CRM and productivity tool APIs behind a single interface, letting AI agents and developers create, update, delete, and list records across Zoho, HubSpot, Odoo, Google Sheets, Gmail, and Google Calendar without handling platform-specific schemas.

Validates email deliverability, assesses domain credibility, and scores B2B leads from A-F to help prioritize outreach, with batch processing and a free tier.

Enables AI agents to search Salesforce accounts, query Snowflake analytics, and create Salesforce tasks via MCP invocable actions.

Enables AI assistants to interact with HubSpot CRM data, providing tools for managing contacts and companies, retrieving activity and conversations, and performing semantic search with vector storage and caching for improved performance.

Connects and cleans data from business systems like CRM, billing, and support, then exposes a read-only MCP tool for an AI assistant to generate revenue-risk reports.

Enables natural-language queries about sales metrics, returning interactive charts inline in chat via MCP Apps with a markdown fallback for unsupported hosts.

Enables AI agents to perform CRM operations like creating contacts, managing deals, and updating leads through natural language using the Model Context Protocol.

Integrates Lever ATS with Claude Desktop to manage hiring pipelines through natural language, offering tools for candidate search, pipeline management, file and application handling, and advanced sourcing.

Unified MCP server combining Hunter.io email finding with Apollo company intelligence for B2B lead enrichment.

MCP server for Apollo.io B2B data discovery and enrichment, enabling company search, people search, contact enrichment, and organization firmographics through Apollo's REST API.

Enables LLMs to search and retrieve Autotask tickets, companies, and contacts using advanced semantic search and AI-powered reranking.

A production-grade MCP server for Fireberry CRM that enables LLMs to query, create, update, and delete CRM records using natural language.

MCP server for emailfinder.dev that enables AI assistants to find verified professional email addresses via name/domain, LinkedIn URLs, company domains, roles, and email validation.

Provides tools for AI agents to query customers by email, list open deals, and update deal stages with business rule enforcement.