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An MCP server that connects AI agents to a running Chrome tab via the Chrome DevTools Protocol (CDP), enabling runtime debugging and page inspection.

MCP server for current weather and multi-day forecasts worldwide, Chinese city names and Chinese output, Open-Meteo + wttr.in dual sources. Hosted Streamable HTTP endpoint included.

Provides access to the Unusual Whales API for real-time financial data, options flow analysis, dark pool activity, and congressional trading tracking. It enables users to perform comprehensive market intelligence and stock analysis across 33 different tools.

excuse MCP — wraps StupidAPIs (keyless — no credential needed)

Why Did You Render captures React re-render diagnostic reports from the browser and exposes them to AI coding agents via MCP. Consists of two npm packages: a server-side MCP component and a browser client. Uses WebSocket relay and JSONL storage for real-time debugging data.

CATAAS MCP — Cat as a Service (free, no auth)

MCP server for Forward Email that provides tools to manage email inbox, send mail, calendar events, and contacts.

Enables AI assistants to query Rede Celcoin account balances, statements, credit card bills, and investments via Open Finance Brazil (read-only, regulated by the Central Bank).

A stateless MCP server that provides a configurable HTTP client tool for LLM agents, supporting custom methods, headers, bodies, timeouts, redirects, response size limits, DNS overrides, and TLS verification.

Enables querying the CIViC database for clinical interpretations of cancer variants through tools like get_variant_evidence and get_variant_assertions.

CIRCL Vulnerability-Lookup — aggregated vulnerability records

Comprehensive Gumroad merchant management for Products, Sales, Licenses, Discounts, Payouts, and Webhooks.

An MCP server providing AI agents with read access to Backlog issues, comments, and attachments via API Key authentication.

Enables Indic-language transliteration and normalization of Indian names and addresses using Wikidata, Aksharamukha, and OpenStreetMap.

Enables real-time Kubernetes cluster observability and debugging through standardized MCP interface. Provides access to pods, services, nodes, events, and includes built-in tools for cluster health analysis and issue identification.

Provides 16 tools that wrap the AXLE CLI for Lean 4 proof engineering without requiring a local Lean installation. Supports proof checking and validation, automatic proof repair for broken or sorry'd theorems, proof simplification by removing redundant tactics, counterexample discovery via property-based testing, and structural transformations including theorem extraction, merging, and renaming. Requires the axle binary to be installed and accessible.

An MCP server for calculating carbon footprints from bank statements using EPA GHG emission factors.

The SQL MCP Server enables natural language interaction with MySQL databases through Claude Desktop. Built with Python using SQLAlchemy for database connectivity, it provides a secure interface for executing SQL queries across multiple databases with features like connection pooling and transaction management. The implementation handles all query types (SELECT, INSERT, UPDATE, DELETE) and returns structured results, making it ideal for users who want to analyze data, manage database content, or perform database operations using conversational language instead of writing raw SQL.

Read-only MCP server for Guild Wars Reforged (Guild Wars 1): wiki, builds, PvX, and community sources for AI agents.

Converts PDF documents to Markdown with automatic image description generation using IBM Granite Vision, supporting streaming and page range selection.