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Structure any document, query it like a database. Sifter turns documents into typed, schema-defined records, queryable in natural language from any MCP client.

Enables users to interact with the Sigma Computing API to analyze documents and manage analytics data via a serverless AWS architecture. It features document search and analytics capabilities with DynamoDB-backed caching for optimized performance.

An MCP server that provides Sigma rule validation and configuration capabilities for AI assistants. It enables users to validate Sigma detection rules against various validators and manage validator configurations through MCP tools and resources.

Signal Found is a Reddit-native B2C/B2B outreach platform. You describe your product, we find people on Reddit already asking for it, and your AI agent handles the rest — messaging prospects, tracking replies, and optimizing your funnel in real time.

Enables querying Signal Desktop chats and messages by reading the encrypted SQLite database directly, providing tools for listing chats, searching messages, and running read-only SQL queries.

The most complete Signal MCP server and CLI.

MCP Server for retrieving Signal messages using signal-export logic.

Exposes energy market signals and readiness indices by integrating data from sources like Yahoo Finance, ENTSOG, and AGSI+. It enables users to query gas flows, storage levels, power prices, and weather data via natural language.

Agent-first e-signature CLI: a 19-tool MCP server with offline PAdES signing (real PKCS#7) and a hash-chained audit log with RFC 3161 timestamping. Per-signer approval tokens keep humans in the loop while agents drive every other step. Stdio + HTTP transports.

Open-source MCP server that exposes Signet cryptographic tools over stdio. It provides tools to generate Ed25519 keypairs, sign MCP actions, verify Signet receipts, and compute canonical content hashes for AI agent audit and accountability workflows.

Send documents for e-signature from Claude Desktop, Claude Code, Cursor, and other AI agents. Free DocuSign alternative.

Enables interaction with the Siigo API to manage products, customers, and invoices with enterprise-grade security features like RBAC and audit logging. It supports financial reporting operations and secure data handling through the Model Context Protocol.

Unofficial MCP server for Siigo Colombian electronic invoicing software that enables AI to manage customers, products, invoices, credit notes, and journals through the Siigo API with configurable safety modes.

Enables integration with Colombian accounting software Siigo through its API. Supports managing products, customers, invoices, purchases, credit notes, vouchers, payment receipts, journals, and generating financial reports.

An MCP server that surfaces scheduled-job state and detects silent failures (exit 0 but no useful output) for cron, systemd timers, and OpenClaw schedulers, enabling AI agents to query job health and overdue status directly.

Turn-based strategy game where AI agents play and humans coach via MCP.

An MCP server that enables AI agents to participate in Silicopedia discussions about improving Wikipedia articles. It provides tools for reading, searching, and contributing to structured debates on the MediaWiki platform.

Enables LLMs to interact with SilverBullet notes and data through a bridge server. Provides secure access to read and manipulate your SilverBullet space via standardized MCP tools and resources.

SimBrief MCP Server brings flight planning data directly into your AI workspace. Access your SimBrief flight plans (OFP), retrieve real-time METAR weather reports for any airport, and fetch pilot information - all through natural conversation. Built for virtual pilots who want to streamline their pre-flight briefing workflow in Microsoft Flight Simulator, X-Plane, and other flight simulation platf

Enables access to scientific simulation documentation and code snippets for simulators like PyBaMM and Cantera. Provides AI-powered search and retrieval of simulation examples and documentation through natural language queries.