"Search functionality without API key requirement" matching MCP servers:

Enables to interact with Nylas API for email, calendar, and contacts via MCP, providing documentation, code samples, and code generation tools.

Enables AI agents to search and retrieve emails from Yahoo accounts using keywords, folder, date range, and attachment filters.

Comprehensive email validation MCP server that checks syntax, MX records, disposable domains, role-based accounts, SPF/DKIM, typo suggestions, and risk scoring.

An MCP server that exposes job-search and application-management capabilities to compatible AI clients, enabling discovery of vacancies, drafting of tailored application materials, and coordinated human-approved submissions.

MCP server for inspecting email domains and addresses, providing objective domain-level email infrastructure answers such as MX, SPF, DMARC, MTA-STS, and disposable-domain evidence.

An MCP server that provides AI agents with direct access to authoritative Cakemail API specifications, enabling accurate code generation and eliminating hallucination.

Sendmux is an email inbox API and email API for AI agents. Use this MCP server to let authorised agents work with Sendmux mailboxes, inbound email, clean JSON parsing, webhooks, outbound sending, provider routing, logs, billing, and team controls.

MCP server wrapping Samotpravil API documentation, providing tools to search for methods, parameters, and examples, with optional proxy to the live API.

Send email, find out why an email failed, set up sending domains, and manage templates, contacts, lists and campaigns in your AhaSend account.

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

Audits email deliverability configuration for a domain, checking SPF, DKIM, DMARC, and MX records, returning a score and recommendations.

Enables AI assistants to browse, inspect, and call the Cakemail API via dynamically loaded OpenAPI spec.

Enables AI agents to verify email addresses with catch-all detection, search existing contacts by company domain, and, when no API key is present, provision a human-approved subscription and retrieve the key after payment.

MCP server that enables AI agents to search and read locally-archived emails via the Bichon email archiver API, without exposing Gmail or IMAP credentials.

Create disposable email inboxes, extract OTP codes in 15 languages, and receive webhooks — all from your AI agent. One call: create inbox → wait for email → get the verification code. Supports 7 domains, email forwarding, and HMAC-signed webhooks with OTP included in payload. Free tier available.

Enables interaction with Outlook Web through its internal API, supporting email search, folder listing, email retrieval, read state changes, calendar events, and reply drafts without Microsoft Graph or COM.

Official Emailit MCP server: send transactional email and manage domains, contacts, audiences, templates, suppressions, webhooks, and API keys with an Emailit API key, over stdio or HTTP.

Enables AI agents to discover and invoke hosted provider tools through a single PipMCP API key, including subscriber lookup and creation of inactive subscriber records, with governed execution and approval controls.

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.

Enables AI agents to query and recall your entire Gmail inbox locally, providing fast summarization and semantic search without relying on Gmail's search API.

Enables Claude to read, search, organize, and clean up Yahoo Mail emails over IMAP without Yahoo API keys.

Lets AI agents and MCP clients discover and execute governed lemlist operations through one PipMCP API key, with hosted schemas, policy approvals, and usage controls.

Enables AI agents to query RankFabrik's four public data APIs—YouTube captions/transcription, places, jobs, and email verification—through thin MCP tools using a single federated API key.

Enables an LLM agent to work a FreeScout support inbox without an API key, authenticating through the normal web UI with a pasted browser session cookie or FreeScout username and password. It lets agents read and search conversations, pull ticket and satisfaction reports, add internal notes, save reply drafts, manage tags, close tickets, and optionally forward to an operator allow-list — all under the agent's own mailbox permissions, and never emailing customers.

Enables MCP clients and coding agents to send transactional emails, retrieve a message by ID, and list sent emails through the Postlane API using an API key and verified sender domain.

Enables AI agents and MCP clients to connect to Mailgun through PipMCP with one API key, discover hosted tools and schemas, and inspect configured sending domains and verification details without sending messages.

Enables Claude Desktop on Windows to search and read Yahoo Mail messages in read-only mode, without sending, deleting, or otherwise modifying them.

Connects AI agents and MCP clients to Mailchimp through a single PipMCP API key, providing hosted tool discovery, schema validation, and policy-governed execution for audience and subscriber workflows.

Enables AI agents to connect to Instantly through a hosted PipMCP gateway using one API key, with hosted tool discovery, governed execution, and explicit campaign inspection and creation.

Enables AI agents and applications to send emails through Cloudflare's Email Service, supporting HTML bodies, multiple recipients, attachments, and Bearer token authentication.