"Collaboration Between Multiple AIs via MCP (Master Control Program)" matching MCP servers:

A Firecrawl MCP server with built-in support for multiple API key rotation, enabling web search, scraping, crawling, extraction, and more via MCP clients.

Comprehensive MCP server providing full programmatic control over the Perplexity API, including agent, sonar, search, embeddings, key management, and cost estimation tools.

Enables natural-language querying of PostgreSQL databases with schema grounding and self-correcting error recovery. Provides a live audit trace and verifies results through exploratory decomposition and empty-result sanity checks.

An MCP server for managing SearXNG instances, enabling configuration inspection, engine toggling, health checks, and container lifecycle control.

A read-only MCP server for searching control science and engineering papers via OpenAlex, limited to core journals in the field.

An MCP server that provides persistent, governed memory for Claude Code, enabling local storage and retrieval of decisions, architecture, and context across sessions with audit trails and hybrid semantic recall.

Provides search, detail lookup, and gap listing tools for a security control inventory, enabling natural language queries about control status and gaps.

Integrates with Narrative's Data Collaboration Platform, enabling AI assistants to search attributes, list datasets, manage access rules, and execute NQL queries via MCP tools and prompts.

Provides semantic search, note retrieval, source explanation, daily digests, and health checks for a local Obsidian vault, enabling MCP clients like Claude Desktop and Claude Code to query the second brain via natural language.

Connects AI assistants to Obsidian vaults via the Local REST API to search notes, retrieve content, and perform semantic searches. It features self-healing multi-URL connectivity and supports both stdio and HTTP transports for flexible deployment.

Hound MCP Servers Gives your agent actually good fetch + Search for 0$, no catch, no api keys or free tiers, fully free.

Provides real-time Google search capabilities to AI assistants like Claude, bypassing anti-scraping mechanisms.

MCP server for the German energy market master data register (MaStR), enabling querying of energy units, actors, grid connections, and more via 21 SOAP and public tools.

MCP server for Korea's KOLAS (Korean Laboratory Accreditation Scheme) under KATS. Search calibration / testing / inspection / medical-testing / reference-material-production / proficiency-testing accredited organizations and standards via knab.go.kr + data.go.kr.

MCP server for Korea's NTIS (National Science and Technology Information Service) operated by KISTI. Search national R\&D projects, public announcements, and research programs.

Read-only MCP server for vessel identity lookup, AIS-style positions, tracks, port calls, carrier schedules, vessel schedules, and delay heuristics with source attribution and BYOK provider support.

MCP server for Оценка сходства носит справочный характер и не является гарантией регистрации или отказа. Инструмент не заменяет патентного поверенного.

MCP server for bash.dog that lets AI agents submit, search, and browse funny AI quotes, including AI roasting other AIs.

MCP server for searching research grants across NSF (US), ERC (EU), and KRF/NRF (Korea) via a unified interface. NIH excluded—covered by existing connectors.

A multi-API key load balancing MCP server for Tavily that automatically rotates between multiple API keys to provide high availability and increased request limits.