"How to obtain an API key" matching MCP servers:

MCP server for creating and managing Linkonda short links, supporting anonymous use without an API key and full link management with a key, while collecting only total redirect counts for privacy.

Search 47,000+ marketing agencies and get AI-matched with fitted agencies, from Pick an Agency.

Provides four free tools to assess AI visibility: crawler access, entity recognition, off-page gaps, and shopping agent compatibility, without requiring an API key.

Lets MCP clients answer questions about website traffic using Plausible Analytics Stats API v2 through read-only tools for totals, trends, breakdowns, and realtime visitors.

Vendor-agnostic MCP server that audits, scores, and rewrites web pages for AI-citation eligibility. No API keys. No registration. Works in Claude Desktop, Cursor, Cline, Windsurf, VS Code (Copilot / Continue), and any client that speaks the Model Context Protocol.

An MCP server that lets Claude and other clients query DataDive niches, keywords, competitors, and Rank Radar data using your API key, including tools for managing dives and rank radars.

Giggal.ai is an email verification tool that runs a deep mailbox existence check on every address and verifies catch-all/accept-all and even SEG protected emails. Your bounce rate stays under 5%, and the 30% of every B2B list that other tools flag as "Risky" becomes deliverable again.

Marketing Analytics AI - MCP server providing AI-powered tools and automation by MEOK AI Labs

MCP server for email compatibility analysis. Analyze, preview, diff, and fix HTML emails across 15 email clients — plus capture real screenshots and create shareable links with an optional API key.

Checks a website's robots.txt and Cloudflare settings to identify AI crawler blocking. Also generates llms.txt content to improve visibility to AI answer engines.

Enable AI agents such as Claude, Co-Pilot, Codex and other compatible tools to create, manage, and optimize advertising campaigns on ChatGPT.

MCP server for MarkItUp's AI image-annotation pipeline. Generate polished marketing-visual variations of any screenshot, regenerate, AI outpaint, and remove backgrounds — powered by Claude analysis + Gemini rendering.

Provides free Google Trends data (interest over time, term comparison, related queries, trending now, regional breakdown) to MCP-compatible AI clients without needing an API key.

MCP server for B2B lead generation and company search using the Generect Live API. Provides tools to search leads, companies, generate emails, and get lead by URL.

Read-only MCP server exposing Ads AI Creator's image styles, pricing, and FAQ for AI clients to generate ad knowledge.

Local-first MCP server for Originality.ai workflows, including AI detection, plagiarism checks, readability, SEO scans, and scan-result retrieval for content teams.

Lets AI agents launch scans, inspect results, manage campaigns and policies, and read alerts directly against your Kaminari Ad workspace via your API key, with 82 tools covering most of the API surface.

An unofficial MCP server for Smartlead that exposes the SmartProspect API and core Smartlead operations, enabling agents to search for leads, manage campaigns, and control credit spending with configurable safety modes.

An SEO MCP server providing free SEO tools including on-page audits, broken link checks, sitemap analysis, and keyword ideas via Google Suggest, all without requiring an API key.

Track brand visibility across ChatGPT, Perplexity, Claude, and Gemini.