What is the key difference between Robrain and Threadctx Mcp?

Robrain belongs to the Knowledge & Memory category with local stdio execution, while Threadctx Mcp belongs to the Knowledge & Memory category with local stdio execution.

How do I install Robrain or Threadctx Mcp in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Robrain and Threadctx Mcp free or paid?

Robrain operates under a Freemium model (API Key required). Threadctx Mcp operates under a Freemium model (API Key required).

Which MCP server has more tools and community activity?

Robrain lists 6 tools with 2 views and 81 GitHub stars. Threadctx Mcp lists 6 tools with 2 views and 1 GitHub stars.

Can I use both Robrain and Threadctx Mcp together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install Robrain or Threadctx Mcp in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Robrain and Threadctx Mcp free to use, or do they require API keys?

Robrain is listed under a Freemium model with API Key required . Threadctx Mcp operates under a Freemium model with API Key required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Robrain and Threadctx Mcp at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both adelinamart-robrain and threadctx-dev-threadctx-mcp as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Robrain has a Quality Score of 49 /100 ( Fair ) with 2 views, 0 installs, and 81 GitHub stars. Threadctx Mcp holds a Quality Score of 43 /100 ( Fair ) with 2 views, 0 installs, and 1 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Robrain vs Threadctx Mcp

In-depth architectural comparison of the Robrain and Threadctx Mcp MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Robrain

Knowledge & Memory · Local stdio

Quality: 49/100 (Fair) | Auth: API Key required

Threadctx Mcp

Knowledge & Memory · Local stdio

Quality: 43/100 (Fair) | Auth: API Key required

Verdict Summary: Choose Robrain if you need specialized Knowledge & Memory tools running via a local process. Choose Threadctx Mcp if your workspace requires Knowledge & Memory integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Robrain when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: ANTHROPIC_API_KEY, OPENAI_API_KEY, PERCEPTION_API_KEY, POSTGRES_PASSWORD.
Primary tools included: Passive capture of session turns and decisions, Structured rejected[] field for vetoed alternatives, Corpus-wide contradiction and stance drift detection.

Explore Robrain Details

Choose Threadctx Mcp when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: THREADCTX_API_KEY, THREADCTX_MODE, THREADCTX_NO_AUTO_RULES.

Feature & Specification Comparison

Specification	Robrain adelinamart Knowledge & Memory	Threadctx Mcp threadctx-dev Knowledge & Memory
Summary	Self-hosted decision memory for AI coding agents. Passively captures architectural decisions with the alternatives you rejected (structured rejected[]), then warns the agent before it re-proposes a rejected approach. Postgres + pgvector; cross-tool across Claude Code, Cursor, Copilot, and Codex. Install: npx robrain up && npx robrain install.	Shared team memory for AI coding agents. Decisions, fixes, and gotchas persist per repo and are shared across Claude Code, Cursor, and any MCP client — what one teammate's agent learns, everyone's agents remember. Local-first, zero-dependency. npx -y threadctx-mcp
Category & Scope

Tools & Capabilities Breakdown

Robrain Tools (6)

Passive capture of session turns and decisions

Structured rejected[] field for vetoed alternatives

Corpus-wide contradiction and stance drift detection

Postgres + pgvector backend for persistent storage

Cross-tool integration with Claude Code, Cursor, Copilot, Codex CLI

Self-hosted or managed cloud deployment options

Threadctx Mcp Tools (6)

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Robrain Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "adelinamart-robrain": {
      "command": "npx",
      "args": [
        "-y",
        "robrain"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "YOUR_ANTHROPIC_API_KEY_HERE",
        "OPENAI_API_KEY": "YOUR_OPENAI_API_KEY_HERE",
        "PERCEPTION_API_KEY": "YOUR_PERCEPTION_API_KEY_HERE",
        "POSTGRES_PASSWORD": "YOUR_POSTGRES_PASSWORD_HERE"
      }
    }
  }
}

Threadctx Mcp Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "threadctx-dev-threadctx-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "threadctx-mcp"
      ],
      "env": {
        "THREADCTX_API_KEY": "YOUR_THREADCTX_API_KEY_HERE",
        "THREADCTX_MODE": "YOUR_THREADCTX_MODE_HERE",
        "THREADCTX_NO_AUTO_RULES": "YOUR_THREADCTX_NO_AUTO_RULES_HERE"
      }
    }
  }
}

Frequently Asked Questions

Robrain is categorized under Knowledge & Memory and uses a local stdio subprocess. In contrast, Threadctx Mcp belongs to Knowledge & Memory using local stdio subprocess. Select Robrain when you need capabilities focused on knowledge & memory and Threadctx Mcp when you require tools for knowledge & memory.

More alternatives to Robrain More alternatives to Threadctx Mcp Knowledge & Memory category hub