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Cratis Chronicle MCP Setup & Guide

MCP ServerMCP RegistryOfficial

io.github.Cratis/chronicle-mcp · v2.0.0

Inspect Cratis Chronicle event stores read-only by default; opt-in, authorized job control.

View on MCP Registry ↗Repository ↗

Copy the install config on this page first, then verify docs and permissions upstream.

Overview

Inspect Cratis Chronicle event stores read-only by default; opt-in, authorized job control. Cratis Chronicle is a MCP Server listed from MCP Registry. Transports: stdio. This page includes an overview, setup tutorial, install commands, and use cases for Trae, Tongyi Lingma, Cursor, Claude Code, and VS Code.

Use cases

Code review & GitHubCursor essentials

AgentHub Verified AvailabilityTested & Ready

Automated pipeline validated install commands, protocol & client compatibility

Verified At2026-10-10
Install Snippets TestedCLI & JSON config syntax verified
Protocol Handshake ReadyComplies with JSON-RPC 2.0 specifications
Origin Registry ActiveSourced from official-mcp-registry
Verified ClientsClaude Code、Claude Desktop、Cursor 等
Security Tier: A+ 级 · 官方认证推荐 (A+)·Maintained by official/verified teams, audited for standard MCP protocol compliance.

Copy by platform

Choose your platform

  1. Open or create .cursor/mcp.json in your project root
  2. Click Copy config and paste; merge only this mcpServers entry if others exist
  3. Replace <placeholders> in env with real secrets (see Environment variables below)
  4. Save, then Cmd+Shift+P → Reload Window

Pre-fill Environment Variables (Optional)

secret
secret
Privacy Guarantee: Keys are replaced 100% locally in your browser memory and are NEVER uploaded or stored on any server.
Click to copy snippet
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Setup tutorial

  1. Open the Cratis Chronicle page and confirm this MCP Server (source: MCP Registry).
  2. Copy the Cursor, Claude Code, or VS Code snippet.
  3. Merge it into mcpServers and replace env placeholders with real secrets.
  4. Reload the window, then call the MCP tools from your agent chat.

Install commands

Install commands and setup steps are in the HTML so search engines and no-JS browsers can read them without running client JavaScript.

Claude Code (local)

  1. Install Claude Code CLI
  2. Copy the command below, replace <placeholders> with real env values, then run in terminal
  3. See Environment variables below if listed
claude mcp add chronicle-mcp -- docker run -i --rm docker.io/cratis/chronicle-mcp:2.0.0

Cursor — .cursor/mcp.json (local)

  1. Open or create .cursor/mcp.json in your project root
  2. Click Copy config and paste; merge only this mcpServers entry if others exist
  3. Replace <placeholders> in env with real secrets (see Environment variables below)
  4. Save, then Cmd+Shift+P → Reload Window
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

VS Code — .vscode/mcp.json (local)

  1. Install GitHub Copilot in VS Code with MCP support
  2. Open or create .vscode/mcp.json in your project root
  3. Click Copy config and paste; merge only this mcpServers entry if others exist
  4. Replace <placeholders> in env with real secrets
  5. Save and Developer: Reload Window
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Claude Desktop — claude_desktop_config.json (local)

  1. Open Claude Desktop claude_desktop_config.json (see remote guide for paths)
  2. Click Copy config and merge under mcpServers
  3. Replace <placeholders> in env with real secrets
  4. Fully quit and restart Claude Desktop
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Trae — .trae/mcp.json (local)

  1. Trae → Settings → MCP, or edit .trae/mcp.json / global mcp.json
  2. Click Copy config and merge mcpServers
  3. Replace <placeholders> in env with real secrets
  4. Save and reload Trae
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Cherry Studio — MCP settings (local)

  1. Cherry Studio → Settings → MCP Servers → Add (STDIO)
  2. Or import JSON: click Copy config and merge mcpServers
  3. Replace <placeholders> in env; ensure Node.js / uv (npx, uvx) are installed
  4. Enable the server and check tools load
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Tongyi Lingma — MCP config (local)

  1. Lingma Settings → MCP → + → STDIO or config file
  2. Click Copy config and merge mcpServers
  3. Replace <placeholders> in env; need Node.js 18+ (npx) or uv (uvx)
  4. Confirm connected before using tools in agent chat
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Windsurf — mcp_config.json (local)

  1. Edit ~/.codeium/windsurf/mcp_config.json
  2. Click Copy config and merge mcpServers (stdio same as Cursor)
  3. Replace <placeholders> in env, save, refresh Cascade
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Cline — MCP Servers (local)

  1. Cline panel → Settings → MCP Servers
  2. Click Copy config and merge
  3. Replace <placeholders> in env, then save
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

WorkBuddy — .workbuddy/mcp.json (local)

  1. Edit ~/.workbuddy/mcp.json (user) or project .workbuddy/mcp.json
  2. Or Plugins → MCP Servers → Configure MCP and paste the JSON below
  3. Replace <placeholders> in env; on Windows prefer absolute paths for command/scripts
  4. Save, restart WorkBuddy, confirm connector status is green
{
  "mcpServers": {
    "chronicle-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "docker.io/cratis/chronicle-mcp:2.0.0"
      ]
    }
  }
}

Troubleshooting & Common ErrorsFAQ

Common connection errors and verified fixes for Cratis Chronicle

Getting 'connection closed' or exit code 1 in Cursor / Claude Code for Cratis Chronicle?

Usually caused by missing runtime paths or IDE environment inheritance. Fix steps: 1. Verify Node.js 18+ (npx) or Python 3.10+ (uvx) is installed; 2. Run 'which npx' or 'which uvx' in terminal, and replace 'command' with absolute path; 3. Reload or restart the client window after modifying config.

Fix Snippet
# Check binary path in terminal:
which npx
node -v
Getting 'spawn npx ENOENT' or 'command not found'?

The editor background process does not inherit your full terminal PATH. Solution: Globally install the package, or set the absolute binary path (e.g. C:\Program Files\nodejs\npx.cmd on Windows, or /usr/local/bin/npx on macOS).

Missing required environment variable or authentication failure?

Cratis Chronicle requires environment variables (Cratis__Chronicle__Mcp__Profile、Cratis__Chronicle__Mcp__ConnectionString、Cratis__Chronicle__Mcp__ClientId、Cratis__Chronicle__Mcp__ClientSecret、Cratis__Chronicle__Mcp__ApiKey、Cratis__Chronicle__Mcp__EventStore、Cratis__Chronicle__Mcp__Namespace). Ensure you have added valid keys under the 'env' object in your config file without trailing whitespace.

Fix Snippet
// .cursor/mcp.json 或 claude_desktop_config.json
{
  "env": {
    "API_KEY": "your_actual_key_here"
  }
}
Still not connecting? Read the MCP troubleshooting guide →

Tool Mock Playground

Sandbox

Cratis Chronicle Tool Interface Simulation · Preview tool schema & outputs without local runtime

Sandbox Ready
fn: chronicle_mcpExecute the core tool interface of Cratis Chronicle
Request ArgumentsJSON Schema
{
  "target": "Cratis Chronicle",
  "action": "execute",
  "options": {
    "mode": "standard",
    "timeoutMs": 5000
  }
}
💡Parameters generated dynamically by Agent runtime
Agent Tool Output

Click 'Run Mock' above

to preview the raw response returned to the LLM

Env: AgentHub Virtual SandboxJSON-RPC 2.0

Decision Guide: Why & When to Use

Assess suitability before installing to save trial-and-error time

Best Suited For
  • PR review
  • Changelog generation
  • Cross-repo issue search
When NOT to Use
  • Replacing human security audit
  • Unauthorized repo access
Recommended Workflow Pairing:View Scenario →

Cratis Chronicle + Scenario Prompt → Complete Agent Automation

MCP hands-on: install to visible results

Follow the full lab (expected UI/output + contrast checks). After installing this item, verify with the tutorial prompts.

Open tutorial →

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Markdown (GitHub README)
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Unified Manifest

{
  "id": "io.github.Cratis/chronicle-mcp",
  "type": "mcp-server",
  "version": "2.0.0",
  "displayName": "Cratis Chronicle",
  "description": "Inspect Cratis Chronicle event stores read-only by default; opt-in, authorized job control.",
  "repository": {
    "url": "https://github.com/Cratis/Chronicle.Mcp",
    "source": "github"
  },
  "homepage": "https://www.cratis.io/chronicle-mcp/",
  "distribution": {
    "packages": [
      {
        "registryType": "oci",
        "identifier": "docker.io/cratis/chronicle-mcp:2.0.0",
        "runtimeHint": "docker",
        "transport": "stdio",
        "environmentVariables": [
          {
            "name": "Cratis__Chronicle__Mcp__Profile",
            "description": "Deployment profile. ReadOnly (default) registers inspection tools only. Mutation also needs an Authorization policy: https://www.cratis.io/chronicle-mcp/deployment-profiles/"
          },
          {
            "name": "Cratis__Chronicle__Mcp__ConnectionString",
            "description": "Chronicle endpoint reachable from the container; host.docker.internal reaches the host on macOS/Windows."
          },
          {
            "name": "Cratis__Chronicle__Mcp__ClientId",
            "description": "OAuth client ID; set together with ClientSecret to override development credentials."
          },
          {
            "name": "Cratis__Chronicle__Mcp__ClientSecret",
            "description": "OAuth client secret; set together with ClientId to override development credentials.",
            "isSecret": true
          },
          {
            "name": "Cratis__Chronicle__Mcp__ApiKey",
            "description": "API key for authentication, as an alternative to client credentials.",
            "isSecret": true
          },
          {
            "name": "Cratis__Chronicle__Mcp__EventStore",
            "description": "Default event store used by tools when none is specified."
          },
          {
            "name": "Cratis__Chronicle__Mcp__Namespace",
            "description": "Default namespace used by tools when none is specified."
          }
        ]
      }
    ],
    "remotes": []
  },
  "dependencies": [],
  "installTargets": [
    "claude-code",
    "claude-desktop",
    "cursor",
    "vscode",
    "trae",
    "cherry-studio",
    "lingma",
    "windsurf",
    "cline",
    "workbuddy"
  ],
  "keywords": [],
  "provenance": {
    "origin": "official-mcp-registry",
    "originalId": "io.github.Cratis/chronicle-mcp",
    "originalUrl": "https://registry.modelcontextprotocol.io/v0.1/servers/io.github.Cratis%2Fchronicle-mcp/versions/latest",
    "isOfficial": true,
    "status": "active"
  }
}
Cratis Chronicle MCP Setup & Guide - AgentHub