Signal Agent 🚨

Job search engine with 500k+ listings across Austria, Germany and Switzerland (alleskralle.com).

The first MCP-native sponsored product ad network for beauty. RTB auction in <100ms. 6 tools. Tools: sponsored_search, brand_spotlight, routine_builder, skin_match, fire_billing_event, get_shopper_prefs

Search 47,000+ marketing agencies and get AI-matched with fitted agencies, from Pick an Agency. Hosted, public, read-only — no API key required. Tools: search_agencies, match_agencies (the "Get Matched" engine), get_agency. Every result links back to the agency's profile on pickanagency.com.

Juhe MCP 是一个提供信息聚合、云记忆、云笔记和全网搜索能力的 MCP 服务器。 Juhe MCP is a MCP server that provides AI assistants with information aggregation, cloud memory, and web search capabilities.

LLMtoMD turns your docs into clean, AI-ready Markdown and serves them to Cursor, Claude Code, and any MCP client so your coding agent retrieves your spec instead of forgetting it.

### Deterministic Music Theory for Claude, Cursor, and Autonomous AI Agents Large Language Models (LLMs) frequently hallucinate music theory, leading to incorrect notes, false Roman numerals, and broken voice leading. **THIRI** solves this by providing a deterministic, mathematical music-theory engine (pitch-class-set theory over ℤ/12) directly to your AI. It gives AI assistants precise, reproducible harmonic reasoning in milliseconds, allowing them to write correct musical scores, analyze progressions, and generate playable arrangements. #### 🎷 Key Features: * **Chord Analysis (`analyze_chord`):** Parse any symbol (e.g., `Cmaj7/E`, `G7#11`) to retrieve root, quality, intervals, Roman numerals, and diatonic or chromatic harmonic functions. * **Note Resolution (`resolve_chord`):** Resolve chord symbols to spelled notes (enharmonically correct), frequencies (Hz), MIDI numbers, and scale recommendations. * **Voicing Engine (`generate_voicing`):** Generate instrument-ready voicings (rootless, shell, triad, pad, drop-2, drop-3) and calculate voice-leading scores for transitions. * **Reharmonization (`reharmonize`):** Substitute progressions using classic jazz techniques, including Tritone Substitution, ii-V Insertion, Modal Interchange, Coltrane Changes, and Backdoor cadences. *Ideal for developers building AI music assistants, digital audio workstation (DAW) agents, educational theory tools, and automated composition workflows.*

Crypto-paid no-KYC VPS that AI agents rent and operate end-to-end over MCP — list plans, fund a USDC/USDT balance, order a server, get root access. 16 tools, Streamable HTTP, root in ~60s. No card, no human at checkout. Humans can use it too.

A content calendar for Claude and ChatGPT. Create posts and campaigns, schedule with cadence guardrails, and publish to LinkedIn, X, and Threads through official APIs — approval-first, so nothing goes live without you. OAuth 2.1, no API keys. Every draft is checked against FeedSquad's anti-slop pattern registry before it can be scheduled.

Bitcoin blockchain data server for AI agents — 17 tools (fees, mempool, transactions, address portfolio, trace, whales, SEC insider trades, web scraping, AI summarization, systems theory, game theory, capital flows, Reddit). x402 USDC micropayments on Base. No API keys needed.

x402 Trust Layer is the trust, security & settlement control plane for autonomous agent payments. It exposes 13 MCP tools that an agent calls around every x402 (HTTP 402) payment: - Preflight guard (spend policy + identity + URL/SSRF risk) - Know-Your-Merchant (KYM) trust & wash-trade scoring - AP2-style mandate compile & diff vs actual tool trace - Semantic delivery escrow with auto-refund on bad responses - On-chain settlement receipt verification - Agent Trust Protocol v4: passport, fraud scan, credit score, trust score v2 No API keys — the agent pays per call in USDC on Base / Solana / Polygon via the Dexter / Coinbase CDP facilitator. Works with Claude Desktop, Claude Code, Cursor, and any MCP client. Live API & dashboard: https://x402trustlayer.xyz/dashboard

Proton Drive CLI MCP server and Codex/Claude-ready metadata for the official Proton Drive CLI

MCP bridge that lets Claude Code delegate heavy tasks to the Antigravity CLI (agy) — purpose-built tools, model routing with fallback, session continuity, and output truncation to save Claude's context and tokens.

Generates high-quality unit tests for Python code with a coverage before/after report on every run. Derives concrete edge cases (None inputs, numeric boundaries, empty collections, exception paths) and returns ready-to-run pytest files with external I/O automatically mocked. Free tier: 100 executions. Pro: $19/month.

Lovie is the Company Formation MCP server for AI tools. Form companies (state, entity type, name-availability check, shareholders, certificate, filing fee), open bank accounts, issue virtual/physical cards, send invoices, run payments, and categorize transactions — all from your AI agent. A lightweight npx stdio proxy bridges your tool to the Lovie server over HTTPS with OAuth; ~79 business tools.

Runtime Cognitive Cortex for AI coding workflows. Contorium provides workspace awareness, project memory, runtime monitoring, MCP context synchronization, and optional cognitive insights without taking control away from developers.

US crime safety scores, recent incidents, neighborhood demographics, rent data, and registered-offender search by address. Free tier available.

Local guardrail proxy for AI coding agents. Wraps any MCP server (stdio or Streamable HTTP) and blocks destructive tool calls — DROP TABLE, rm -rf, force-push — before they execute. TOFU catalog pinning against rug pulls, plus tool-poisoning and result-injection scanning. Single Rust binary, Apache-2.0.

Human-in-the-loop approvals & notifications for AI agents via WhatsApp (MCP server)

Job search engine with 500k+ listings across Austria, Germany and Switzerland (alleskralle.com).

Puter MCP lets your AI tools (Claude Code, Codex, or any other MCP-compatible client) interact with your Puter resources: managing files, publishing websites, deploying workers, and more.

Ephemeral REST chatrooms where AI agents of different owners coordinate on a shared task. A room is one URL — no SDK, no registration. The owner creates a room, hands the URL to agents, and watches the conversation live in a browser. Remote MCP server at https://roomcomm.ru/mcp (create_room, read_messages, send_message, get_context, verify_integrity). Optional LLM arbiter tracks negotiation threads, flags contradictions, and chains every revision into a tamper-evident Ed25519-signed ledger.

Feedjolt's MCP server gives AI agents and MCP clients programmatic access to your feedback boards, posts, comments, roadmap, and changelog. Read feature requests, triage and tag feedback, change post statuses, merge duplicates, and publish changelog entries straight from any MCP-compatible client. Built for startups and indie teams who run their feedback loop where they build. Streamable-HTTP transport, API-key auth.

An MCP server implementation for retrieving information from the AWS Knowledge Base using the Bedrock Agent Runtime.

Persistent memory and shared context for AI coding tools. Two local MCP servers give every AI coding tool a shared, permanent memory of your project across sessions and tools.