Sponsored by Deepsite.site

MCP.so

Penfield - Persistent Memory and Knowledge Graphs for AI Agents

Created By
Penfielda day ago
Penfield gives AI agents long-term memory that compounds over time. Instead of starting every session from zero, your agent remembers conversations, learns preferences, connects ideas, and picks up exactly where it left off. Core capabilities: - 16 tools covering memory CRUD, knowledge graph, context management, artifacts, and reflection - Hybrid search with tunable weights — BM25 (keyword), vector (semantic), and graph traversal - Knowledge graph with 24 relationship types across 8 categories (evolution, evidence, hierarchy, causation, implementation, conversation, sequence, dependencies) - Context checkpoints for session handoff between agents or channels - Artifact storage for files, diagrams, and reference docs - 11 memory types intelligent filtering - Personality system with configurable personas via the portal Also available as a Claude Connector, Claude Code integration, native OpenClaw plugin (4-5x faster), and direct API.
# ai-memory
# memory
OverviewContentToolsComments
Overview
<!-- Favicon -->
<link rel="icon" type="image/svg+xml" href="/favicon.svg">

<!-- Inter Font -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">

<!-- Styles -->
<link rel="stylesheet" href="styles.css">

<!-- Header -->
<header class="header">
    <div class="header-container">
        <a href="/" class="header-logo">
            <img src="/favicon.svg" alt="Penfield™" width="32" height="32">
            <span class="header-logo-text">Penfield&trade;</span>
        </a>
        <button class="mobile-menu-toggle" aria-label="Menu" onclick="this.nextElementSibling.classList.toggle('open')">
            <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M3 12h18M3 6h18M3 18h18"/></svg>
        </button>
        <nav class="header-nav">
            <a href="#features" class="nav-link">Features</a>
            <a href="#pricing" class="nav-link">Pricing</a>
            <a href="/docs" class="nav-link">Docs</a>
            <button class="login-button" onclick="window.location.href='https://portal.penfield.app/sign-in'">Login</button>
            <a href="https://portal.penfield.app/sign-up" class="cta-button cta-button-sm">Get Started</a>
        </nav>
    </div>
</header>

<!-- Main content -->
<main class="container">
    <div class="hero">
        <!-- Logo/Brand -->
        <div class="logo">
            <div class="logo-icon">
                <img src="/favicon.svg" alt="Penfield™" width="40" height="40">
            </div>
            <span class="logo-text">Penfield&trade;</span>
        </div>

        <!-- Hero content -->
        <h1 class="hero-title">
            Persistent Memory for AI Assistants
        </h1>

        <p class="hero-subtitle">
            Give any AI assistant long-term memory through MCP.<br>
            Knowledge graphs, semantic search, and document storage.
        </p>

        <!-- Call to action -->
        <div class="hero-cta">
            <a href="https://portal.penfield.app/sign-up" class="cta-button">Start Free Trial</a>
            <p class="cta-note">All plans include a free trial period.</p>
        </div>

        <!-- Features preview -->
        <div class="features-grid" id="features">
            <div class="feature">
                <div class="feature-icon">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                        <path d="M12 22C17.5228 22 22 17.5228 22 12C22 6.47715 17.5228 2 12 2C6.47715 2 2 6.47715 2 12C2 17.5228 6.47715 22 12 22Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <path d="M12 6V12L16 14" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                    </svg>
                </div>
                <h3>Persistent Memory</h3>
                <p>Your AI remembers across sessions &mdash; preferences, projects, decisions, and everything you've discussed</p>
            </div>

            <div class="feature">
                <div class="feature-icon">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                        <path d="M12 2L2 7L12 12L22 7L12 2Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <path d="M2 17L12 22L22 17" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <path d="M2 12L12 17L22 12" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                    </svg>
                </div>
                <h3>Knowledge Graph</h3>
                <p>Memories auto-connect into a traversable graph with typed relationships you can explore and query</p>
            </div>

            <div class="feature">
                <div class="feature-icon">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                        <path d="M9 11L12 14L22 4" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <path d="M21 12V19C21 20.1046 20.1046 21 19 21H5C3.89543 21 3 20.1046 3 19V5C3 3.89543 3.89543 3 5 3H16" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                    </svg>
                </div>
                <h3>MCP Compatible</h3>
                <p>Works with Claude Desktop, Claude Code, and any AI that supports Model Context Protocol</p>
            </div>

            <div class="feature">
                <div class="feature-icon">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                        <path d="M14 2H6C5.46957 2 4.96086 2.21071 4.58579 2.58579C4.21071 2.96086 4 3.46957 4 4V20C4 20.5304 4.21071 21.0391 4.58579 21.4142C4.96086 21.7893 5.46957 22 6 22H18C18.5304 22 19.0391 21.7893 19.4142 21.4142C19.7893 21.0391 20 20.5304 20 20V8L14 2Z" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <path d="M14 2V8H20" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                    </svg>
                </div>
                <h3>Document Storage</h3>
                <p>Upload PDFs, text files, and documents. Auto-chunked, embedded, and searchable by your AI</p>
            </div>

            <div class="feature">
                <div class="feature-icon">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                        <circle cx="11" cy="11" r="8" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <path d="M21 21L16.65 16.65" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                    </svg>
                </div>
                <h3>Semantic Search</h3>
                <p>Vector + BM25 hybrid search finds exactly what you need across all your memories and documents</p>
            </div>

            <div class="feature">
                <div class="feature-icon">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                        <path d="M20 21V19C20 17.9391 19.5786 16.9217 18.8284 16.1716C18.0783 15.4214 17.0609 15 16 15H8C6.93913 15 5.92172 15.4214 5.17157 16.1716C4.42143 16.9217 4 17.9391 4 19V21" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                        <circle cx="12" cy="7" r="4" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
                    </svg>
                </div>
                <h3>Personality System</h3>
                <p>Customize your AI's voice, style, and behavior. Choose a preset or create your own persona</p>
            </div>
        </div>
    </div>

    <!-- Service Description (for trademark) -->
    <section class="service-section">
        <div class="service-card">
            <h2 class="service-title">Professional AI Memory Platform</h2>
            <p class="service-description">
                Penfield&trade; provides persistent memory management for AI assistants, including knowledge graph creation,
                semantic search and recall, document storage, personality customization, and Model Context Protocol (MCP)
                integration. Our platform enables AI assistants to maintain long-term context across
                conversations through secure cloud infrastructure with full data sovereignty.
            </p>
        </div>
    </section>

    <!-- Pricing Section -->
    <section class="pricing-section" id="pricing">
        <h2 class="section-title">Simple, Transparent Pricing</h2>
        <p class="section-subtitle">Choose your plan and start your free trial today.</p>

        <div class="pricing-grid">
            <div class="pricing-card">
                <div class="pricing-badge pricing-badge-secondary">Early Adopter &mdash; 50% Off</div>
                <div class="pricing-header">
                    <h3 class="pricing-name">Standard</h3>
                    <div class="pricing-price">
                        <span class="price-original">$20</span>
                        <span class="price-currency">$</span>
                        <span class="price-amount">10</span>
                        <span class="price-period">/month</span>
                    </div>
                </div>
                <ul class="pricing-features">
                    <li>5,000 Memories</li>
                    <li>25 Documents</li>
                    <li>Vector + Hybrid Search</li>
                    <li>Knowledge Graph</li>
                    <li>Personality System</li>
                    <li>API Access</li>
                    <li>Email Support</li>
                </ul>
                <a href="https://portal.penfield.app/sign-up" class="pricing-button">Start Free Trial</a>
            </div>

            <div class="pricing-card featured">
                <div class="pricing-badge">Early Adopter &mdash; 50% Off</div>
                <div class="pricing-header">
                    <h3 class="pricing-name">Premium</h3>
                    <div class="pricing-price">
                        <span class="price-original">$40</span>
                        <span class="price-currency">$</span>
                        <span class="price-amount">20</span>
                        <span class="price-period">/month</span>
                    </div>
                </div>
                <ul class="pricing-features">
                    <li>20,000 Memories</li>
                    <li>100 Documents</li>
                    <li>Vector + Hybrid Search</li>
                    <li>Knowledge Graph</li>
                    <li>Personality System</li>
                    <li>Priority Support</li>
                    <li>API Access</li>
                </ul>
                <a href="https://portal.penfield.app/sign-up" class="pricing-button featured">Start Free Trial</a>
            </div>
        </div>
        <p class="pricing-note">Early adopter pricing is for a limited time. All paid plans include a free trial period.</p>
    </section>
</main>

<!-- Footer -->
<footer class="footer">
    <div class="footer-links">
        <a href="/docs">Documentation</a>
        <a href="/terms">Terms of Service</a>
        <a href="/privacy">Privacy Policy</a>
    </div>
    <p>&copy; <span id="current-year"></span> Penfield&trade; (Support Service LTD). All rights reserved.</p>
</footer>

<!-- Contact Sales Modal -->
<div id="contact-modal" class="modal">
    <div class="modal-content">
        <button class="modal-close" onclick="closeContactModal()">&times;</button>
        <h2 class="modal-title">Contact Us</h2>
        <p class="modal-subtitle">Questions about Penfield&trade;? We'd love to hear from you.</p>

        <form id="contact-form" class="contact-form">
            <div class="form-group">
                <label for="contact-name">Full Name *</label>
                <input
                    type="text"
                    id="contact-name"
                    name="name"
                    class="form-input"
                    placeholder="John Doe"
                    required
                >
            </div>

            <div class="form-group">
                <label for="contact-company">Company</label>
                <input
                    type="text"
                    id="contact-company"
                    name="company"
                    class="form-input"
                    placeholder="Acme Inc."
                >
            </div>

            <div class="form-group">
                <label for="contact-email">Email *</label>
                <input
                    type="email"
                    id="contact-email"
                    name="email"
                    class="form-input"
                    placeholder="john@example.com"
                    required
                >
            </div>

            <div class="form-group">
                <label for="contact-tier">Interested In</label>
                <select id="contact-tier" name="tier" class="form-input">
                    <option value="Standard">Standard - $10/month</option>
                    <option value="Premium">Premium - $20/month</option>
                    <option value="Other">Other / General Inquiry</option>
                </select>
            </div>

            <div class="form-group">
                <label for="contact-message">Message</label>
                <textarea
                    id="contact-message"
                    name="message"
                    class="form-textarea"
                    placeholder="Tell us about your needs..."
                    rows="4"
                ></textarea>
            </div>

            <button type="submit" class="modal-cta-button">
                Send Message
            </button>

            <p class="modal-footer-text">
                We'll get back to you within 24 hours
            </p>
        </form>
    </div>
</div>

<script src="script.js"></script>

Server Config

{
  "mcpServers": {
    "penfield": {
      "command": "npx",
      "args": [
        "mcp-remote@latest",
        "https://mcp.penfield.app/"
      ]
    }
  }
}
Recommend Servers
TraeBuild with Free GPT-4.1 & Claude 3.7. Fully MCP-Ready.
AiimagemultistyleA Model Context Protocol (MCP) server for image generation and manipulation using fal.ai's Stable Diffusion model.
ChatWiseThe second fastest AI chatbot™
Baidu Map百度地图核心API现已全面兼容MCP协议，是国内首家兼容MCP协议的地图服务商。
Zhipu Web SearchZhipu Web Search MCP Server is a search engine specifically designed for large models. It integrates four search engines, allowing users to flexibly compare and switch between them. Building upon the web crawling and ranking capabilities of traditional search engines, it enhances intent recognition capabilities, returning results more suitable for large model processing (such as webpage titles, URLs, summaries, site names, site icons, etc.). This helps AI applications achieve "dynamic knowledge acquisition" and "precise scenario adaptation" capabilities.
MCP AdvisorMCP Advisor & Installation - Use the right MCP server for your needs
TimeA Model Context Protocol server that provides time and timezone conversion capabilities. This server enables LLMs to get current time information and perform timezone conversions using IANA timezone names, with automatic system timezone detection.
WindsurfThe new purpose-built IDE to harness magic
EdgeOne Pages MCPAn MCP service designed for deploying HTML content to EdgeOne Pages and obtaining an accessible public URL.
Amap Maps高德地图官方 MCP Server
Howtocook Mcp基于Anduin2017 / HowToCook （程序员在家做饭指南）的mcp server，帮你推荐菜谱、规划膳食，解决“今天吃什么“的世纪难题； Based on Anduin2017/HowToCook (Programmer's Guide to Cooking at Home), MCP Server helps you recommend recipes, plan meals, and solve the century old problem of "what to eat today"
BlenderBlenderMCP connects Blender to Claude AI through the Model Context Protocol (MCP), allowing Claude to directly interact with and control Blender. This integration enables prompt assisted 3D modeling, scene creation, and manipulation.
Jina AI MCP ToolsA Model Context Protocol (MCP) server that integrates with Jina AI Search Foundation APIs.
Visual Studio Code - Open Source ("Code - OSS")Visual Studio Code
CursorThe AI Code Editor
Serper MCP ServerA Serper MCP Server
Y GuiA web-based graphical interface for AI chat interactions with support for multiple AI models and MCP (Model Context Protocol) servers.
Tavily Mcp
Playwright McpPlaywright MCP server
DeepChatYour AI Partner on Desktop
MiniMax MCPOfficial MiniMax Model Context Protocol (MCP) server that enables interaction with powerful Text to Speech, image generation and video generation APIs.