AiAgentKarl

Solana blockchain data for AI agents — wallet balances, token prices, DeFi yields (Raydium + Orca), and token safety checks (RugCheck scores, holder concentrati

Enables agents to report and query performance metrics to build a community-driven quality database for MCP tools. This server helps agents discover and select

MCP server for EU company and business data. 9 tools: company search (GLEIF, 2M+ entities), LEI lookup, corporate structures (parent/subsidiaries), trade regist

MCP server for agriculture and farming data. 8 tools: soil conditions (temperature, moisture), crop weather forecasts, historical climate data (NASA POWER, sinc

MCP server providing AI agents with access to German government open data. 12 tools across 6 categories: Autobahn traffic, DWD weather, NINA disaster warnings,

Enables AI agents to render interactive user interfaces such as forms, dashboards, charts, tables, and wizards directly in MCP-compatible clients. Supports stru

Enables AI agents to connect and interact with common business platforms like Shopify, WordPress, and Calendly via pre-built connectors for tasks such as produc

Enables AI agents to rate each other, track interaction outcomes, and compute trust scores, with features like submitting ratings, getting reputation profiles,

Slack for AI agents — rooms, messaging and context sharing for multi-agent collaboration.

Analyzes tasks to recommend the minimal set of MCP servers needed, reducing context window waste by up to 85%.

Enables AI agents to create, compare, and track purchases with structured buying workflows, offer comparison, and merchant verification.

MCP Server providing AI agents access to over 3 million US court decisions via CourtListener and EU legislation via EUR-Lex, with tools for searching cases, cit

Community-driven library of tested prompts for AI agents, enabling search, retrieval, sharing, and rating of prompts.

MCP Server for AI agent identity and authorization. Create, verify, and manage agent identities with trust scores and scoped authorization tokens.

An app store for AI agents. Discover, search, and install 49+ MCP servers from a curated catalog.

Enables interaction with the AGNTCY multi-agent network through MCP, providing tools for agent registration, discovery, and messaging using ACP and SLIM protoco

Enables registration, monitoring, and control of IoT devices via AI agents, with local storage and no cloud API key required.

Converts any REST API into MCP-compatible tools instantly by providing an OpenAPI/Swagger spec, enabling seamless integration with AI agents.

Provides astronomical data including ISS tracking, moon phases, NASA APOD, near-Earth objects, exoplanets, space weather, and upcoming celestial events without

Tracks and analyzes AI agent tool calls with event logging, dashboard, per-tool and per-agent analytics, and error monitoring.

Stores and retrieves key-value memories with metadata and namespaces for AI agents. Enables persistent, searchable memory across sessions using the Model Contex

Enables AI agents to fetch and search news from multiple sources including RSS/Atom feeds, HackerNews, and GDELT global news intelligence without requiring an A

Enables AI agents to make micropayments using USDC on Solana via the x402 protocol, supporting payment requests, on-chain verification, and revenue tracking.

Real-time earthquake data and seismic monitoring for AI agents via the USGS Earthquake Catalog API.

Provides AI agents with access to US patent data through 16 tools for search, citation analysis, technology trends, and portfolio comparisons via the free USPTO

MCP server for Open Food Facts, enabling food product lookup by barcode, search, nutrition facts, allergen checks, and eco-scores without an API key.

MCP server for agent reputation staking — trust through skin-in-the-game. Agents deposit stakes as trust collateral, with slashing for bad behavior and reputati

MCP Server for agent and service discovery — register, search, rate, and manage AI agents and services in a local directory.

Provides real-time electricity grid data including CO2 intensity, power mix, and wholesale prices, plus optimal green time windows for energy-intensive AI tasks

Local document intelligence for AI agents — extract text, detect tables, read metadata, analyze structure, search keywords, and detect language from PDF and DOC

Compliance and guardrails infrastructure for AI agents, enabling safe operations within regulatory boundaries like GDPR and EU AI Act.

Enables testing and validation of APIs for AI agent compatibility, providing scores, grades, and actionable recommendations.

MCP server for AI agent transaction insurance and escrow — protect agent-to-agent payments with smart escrow, dispute resolution, and risk scoring.

Swarm intelligence for AI agents, enabling collective decision-making through weighted consensus voting.

Enables AI agents to access comprehensive sports data including football, basketball, American football, and hockey leagues via 11 tools, with no API key requir

Linux system administration via AI agents — MCP server for managing services, processes, disk, network and logs on Linux systems.

Provides tamper-proof audit logging for AI agents using SHA-256 hash chains, integrity verification, and compliance reporting for the EU AI Act.

An open-source MCP server for AI-powered fraud prevention that detects fraudulent IPs, emails, URLs, and phone numbers using free APIs and provides actionable r

MCP server for enterprise authentication and authorization — JWT validation, OIDC token inspection, OAuth 2.0 introspection, and role-based access control for A

MCP server providing AI agents with access to NASA and space/astronomy data including APOD, Mars rover photos, near-Earth asteroids, exoplanets, Earth imagery,

Provides AI agents with access to CO2 emissions data, climate projections, and risk assessments for heat, flooding, and drought, supporting ESG analysis and CSR

Enables AI agents to create, share, discover, and execute reusable multi-step workflow templates.

MCP server giving AI agents access to US political finance data: campaign contributions, PAC spending, lobbying records, and voting behavior.

Provides access to worldwide labor market data including unemployment, wages, and employment statistics from BLS (US) and Eurostat (EU). Offers tools for compar

Enables autonomous research by integrating multiple free sources including web search, Wikipedia, arXiv, and Crossref, with no API keys required.

Enables AI agents to search and explore over 570,000 artworks from the Metropolitan Museum of Art and Art Institute of Chicago without needing an API key.

Provides AI agents with access to trending topics from Reddit and HackerNews using free public APIs without authentication.

MCP server enabling AI agents to search and retrieve scientific papers, citations, and author profiles from Crossref, OpenAlex, and Semantic Scholar with no API

MCP server for community-driven prompt voting and discovery — submit, upvote, and find the best AI prompts.

Connects MCP-powered AI agents to the decentralized Agent Network Protocol (ANP) for DID-based identity, agent discovery, and secure agent-to-agent communicatio

Enables AI agents to compare LLM benchmarks, get pricing, and receive model recommendations for tasks and budgets.

Generates, validates, and discovers standardized MCP server cards for automatic agent discovery.

Provides US real estate data including housing stats, demographics, nearby amenities, area comparisons, cost-of-living analysis, and neighborhood search via fre

Enables GDPR privacy compliance and DSAR management, including creating, tracking, and updating Data Subject Access Requests, checking GDPR compliance, and main

Provides color and design tools including palette generation, WCAG contrast checking, color conversion, gradients, color blindness simulation, and CSS variables

Klarna-style product discovery for AI shopping agents. Makes product catalogs machine-readable so AI agents can search, compare, and purchase products programma

MCP server for shared context caching with trust verification -- AI agents share and verify computed results to reduce token cost and increase reliability.

Bridge MCP with Google Agent2Agent Protocol — agent discovery, task delegation, A2A communication

MCP-Server fuer Web-Accessibility-Checks: WCAG 2.1/2.2 Pruefung, Kontrast, ARIA, Formular-Validierung

Usage analytics and monitoring for AI agent tool calls — track, analyze and optimize agent behavior

MCP Server that solves context window overload — smart tool pruning, relevance scoring, and budget tracking for AI agents

Slack for AI agents — rooms, messaging and context sharing for multi-agent coordination

Agent-to-Agent service directory — discover, register and rate AI agent services

Quality signals for MCP tools — agents report results, building a community-driven quality database

Klarna-style product discovery for AI agents — structured product data, comparison, feed conversion

MCP Server for AI agent identity and authorization — create, verify, and manage agent identities

MCP server for agent transaction insurance and escrow — protect AI agent-to-agent payments with smart escrow, dispute resolution, and risk scoring.

Compliance & guardrails for AI agents — PII filtering, audit logging, GDPR/AI Act checks, kill switch

MCP Server for server card generation, validation and discovery — .well-known/mcp-server-card.json protocol

MCP server for agent reputation staking — trust through skin-in-the-game. Agents stake reputation as collateral; bad behavior gets slashed.

Lighthouse for AI agents — test if APIs and services are properly accessible to AI agents

Reusable workflow templates for AI agents — share, discover and execute multi-step agent workflows

MCP bridge for the AGNTCY multi-agent network — agent registry, ACP messaging, SLIM protocol, capability discovery

MCP-Server for agriculture data — soil conditions, crop weather, global statistics, food products

MCP Server bridging the Agent Network Protocol (ANP) with MCP agents — identity, discovery, messaging

MCP server giving AI agents access to aviation data — live flights, airport weather, airline info

MCP-Server für Bioinformatik-Daten — Gene, Proteine, PubMed-Literatur, Varianten und Sequenzen via NCBI & UniProt

MCP Server with pre-built connectors for Shopify, WordPress, Calendly and other business platforms

MCP Server for scientific papers, citations, and academic research — Crossref, OpenAlex, Semantic Scholar

Schema.org for AI agents — the open standard for agent-accessible business interfaces

JavaScript MCP Server — Google Agent2Agent Protocol bridge for agent discovery and task delegation

MCP Server for news aggregation — RSS/Atom feeds, HackerNews, and GDELT Global News Intelligence. 11 tools, 65+ languages, no API key required.

MCP server for climate risk assessment — CO2 emissions, climate projections, and ESG data via Climate TRACE, NOAA, and Open-Meteo

MCP server for community-driven prompt voting and discovery — submit, vote, and find the best AI prompts

MCP-Server fuer Woerterbuch-Daten: Definitionen, Synonyme, Antonyme, Reime, Phonetik. Free Dictionary API + Datamuse, kein API-Key noetig.

MCP Server for real-time earthquake data and seismic monitoring via USGS Earthquake Catalog API

MCP-Server für Stromnetz-Daten — CO2-Intensität, Strommix, Preise und optimale Zeitfenster für energieintensive KI-Tasks

MCP server for enterprise authentication and authorization — JWT validation, OIDC token inspection, OAuth 2.0 introspection, role-based access control

MCP server for EU company data — GLEIF search, VAT validation, Eurostat statistics, sanctions screening, insolvency search, beneficial ownership

MCP server for fraud prevention — IP reputation, email breach detection, URL safety, phone validation and risk scoring via free APIs (IPQualityScore, HaveIBeenP

Geospatial MCP Server — Geocoding, POI-Suche, Routing und Gebietsstatistiken via OpenStreetMap fuer AI Agents

MCP-Server für deutsche Behörden-Daten — Autobahn, Wetter, Warnungen, Energie, Statistik, Gesetze, Politik und mehr

MCP Server for LLM comparison, benchmarks, and pricing — find the best model for any task

Community-driven library of tested prompts — npm for AI agent configs

JavaScript MCP Server — solve context window overload with smart tool pruning and relevance scoring

JavaScript MCP Server for persistent agent memory — store, retrieve, search knowledge

MCP server for NASA space data — Astronomy, Mars Rovers, Asteroids, Earth imagery, Exoplanets

VS Code Extension — Browse, install and manage MCP servers for AI agents

JavaScript MCP Server — agent/service discovery and registry

MCP server for GDPR privacy compliance and DSAR management — open-source alternative to Transcend