"Tools and methods for plotting graphs without an API key" matching MCP servers:

Dynamic QR code platform for AI agents. Create, customize, and track QR codes without regenerating images. 37 tools covering 11 QR types (URL, vCard, WiFi, event…).

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

Provides 13 offline SEO and marketing tools to any MCP client, covering ad metric calculators, text and heading analysis, keyword density, and generators for meta tags, Open Graph, hreflang, schema markup, XML sitemaps, and robots.txt. Everything runs locally with no account, API key, or network calls.

Get access to real-time SEO data, including: keyword insights, backlink data, traffic estimates and more. Allow AI tools and Large Language Models (LLMs) to tap into the real-time SEO Review Tools API with natural language commands.

Five general-purpose stdio MCP servers for SEO: access to SERP, Wordstat, Google Search Console, Yandex.Webmaster and Yandex.Metrica straight from Claude Code (or any MCP client). All tools are read-only, output is strict JSON. Not tied to a specific site: defaults (GSC property, Webmaster host, Metrica counter) are configured on the fly.

Enables Claude to query Bing Webmaster Tools performance, crawl, sitemap, backlink, and keyword data in plain language through the official Bing Webmaster API. It is read-only and runs locally using your own API key.

A streamlined MCP server for XMP metadata embedding with beautiful formatting and smart filename indicators, enabling metadata embedding, reading, validation, and report generation for lifestyle, product, and orbit schemas.

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

Enables domain investors, webmasters, and autonomous agents to perform comprehensive domain audits including brand scoring, TLD tier analysis, and DNS connectivity checks, and to generate strategic brand suffixes and industry compound variations for portfolio expansion.

MCP server that exposes the Amazon Selling Partner API to Claude Desktop and any other MCP client. It wraps the python-amazon-sp-api SDK and ships 55+ tools across 19 SP-API scopes with automatic pagination, throttle-aware retry and multi-marketplace support.

Enables unified access to Yandex Webmaster, Direct, Metrika, Wordstat, Audience and Search API through a single MCP endpoint, with a public read-only-by-default mode and an optional pro build for guarded write operations. Supports multi-project discovery and OAuth-based authorization across the services.

A free WordPress plugin that turns your site into a governed MCP server, exposing 153 curated WordPress abilities (posts, media, users, WooCommerce, ACF, SEO) as tools for AI agents like Claude and Cursor. Every ability is off by default, scoped to a least-privilege user, capability-gated, and logged.

Provides honest A/B test verdicts using interactive cards, with statistical calculations for conversion rates, sample sizes, and Bayesian probability-to-beat.

Enables MCP clients to manage business locations, citations, reviews, posts, and local analytics across dozens of directories, maps, and search engines.

Provides tools to extract the first or all sitemap URLs from a website's robots.txt file.

Analyzes any webpage for SEO scores, issues, and actionable recommendations. Supports side-by-side comparison of two URLs.

Unifies Amazon SP-API and Ads API into 20 MCP tools for orders, inventory, reports, feeds, and advertising, handling auth, throttling, and PII compliance automatically.

腾讯广点通API网关服务，通过MCP工具调用广点通报表、账户等核心接口，支持安全认证和参数修复。

Enables AI assistants to query Ringba call analytics, including running EHG insights reports and listing available metrics and dimensions.

Enables coding agents to search and retrieve 500+ production-ready React and Tailwind UI sections, page recipes, and brand-styled components over MCP, along with imagery and social post templates.