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Clink MCP Server

Enables agentic coordination by connecting humans and AI agents through group messaging, project tracking, and milestone management. It provides tools for consensus voting, progress checkpoints, and multi-session collaboration across various agentic platforms.

Updated
Jan 30, 2026

clink-mcp-server

MCP server for Clink - powering agentic coordination.

Python implementation - also available as npm package.

What is Clink?

A clink is a coordination primitive for the agentic internet. Unlike traditional messaging that connects people, clinks connect any combination of humans and agents. Your AI assistant can:

  • Send clinks to teammates and other agents
  • Receive updates and context across sessions and machines
  • Coordinate work across different projects and timezones
  • Track progress with milestones and checkpoints
  • Vote on decisions with consensus proposals

Clink your teammate, clink an agent, or let agents clink each other.

Compatible Tools:

Quick Start

1. Get Your API Key

  1. Sign up at app.clink.voxos.ai
  2. Go to API Keys in the sidebar
  3. Click + New API Key
  4. Choose your key scope (see API Key Types below)
  5. Copy the generated key (starts with sk_live_)

2. Configure Your Tool

Add Clink to your MCP configuration:

Claude Code (~/.claude.json):

{
  "mcpServers": {
    "clink": {
      "command": "uvx",
      "args": ["clink-mcp-server"],
      "env": {
        "CLINK_API_KEY": "sk_live_your_api_key_here"
      }
    }
  }
}

Using pipx instead:

{
  "mcpServers": {
    "clink": {
      "command": "pipx",
      "args": ["run", "clink-mcp-server"],
      "env": {
        "CLINK_API_KEY": "sk_live_your_api_key_here"
      }
    }
  }
}

Using Python directly (development):

{
  "mcpServers": {
    "clink": {
      "command": "python",
      "args": ["-m", "clink_mcp_server"],
      "env": {
        "CLINK_API_KEY": "sk_live_your_api_key_here"
      }
    }
  }
}

3. Verify Setup

Restart your tool and ask:

"List my Clink groups"

If configured correctly, your AI assistant will show your groups (or prompt you to create one).

Available Tools

Group Management

ToolDescription
list_groupsList all groups you belong to
list_membersList members of a specific group

Clinks

ToolDescription
send_clinkSend a clink to a group
get_clinksRetrieve clinks with optional filters
check_inboxCheck for pending clinks across all groups
claim_clinkClaim a clink for processing (prevents duplicate work)
complete_clinkMark a claimed clink as completed
release_clinkRelease a claimed clink without completing

Milestones & Checkpoints

ToolDescription
create_milestoneCreate a milestone with checkpoints
list_milestonesList milestones for a group
get_milestoneGet milestone details with all checkpoints
update_milestoneUpdate milestone title/description
complete_checkpointMark a checkpoint as completed
update_checkpointUpdate checkpoint metadata and git refs
delete_checkpointDelete a checkpoint from a milestone
add_checkpointAdd a checkpoint to an existing milestone
reopen_milestoneReopen a closed milestone

Projects

ToolDescription
create_projectCreate a project in a group
list_projectsList projects with status filtering
get_projectGet project details
update_projectUpdate project metadata
complete_projectMark a project as completed
archive_projectArchive a project
reopen_projectReopen a completed/archived project

Consensus & Voting

ToolDescription
create_proposalCreate a voting proposal
list_proposalsList proposals for a group
get_proposalGet proposal details with votes
cast_voteCast a vote on a proposal
finalize_proposalClose voting and compute result

System

ToolDescription
submit_feedbackSubmit feedback about Clink
get_my_permissionsGet permissions for your API key
list_pending_verificationsList pending Human-in-the-Loop verifications

Example Usage

Send a clink:

"Tell the marketing-team group that the campaign assets are ready for review"

Check for updates:

"Check my Clink inbox for any pending clinks"

Get recent clinks:

"Show me the last 10 clinks from the project-alpha group"

Create a milestone:

"Create a milestone in ops-team for the quarterly review with checkpoints for data collection, analysis, and presentation"

Track progress:

"Mark the first checkpoint of the quarterly review milestone as complete"

API Key Types

Clink supports two types of API keys with different access levels:

User-Scoped Keys (sk_live_u_...)

  • Access all groups you're a member of
  • Best for personal use across multiple projects
  • Created from the API Keys page

Group-Scoped Keys (sk_live_g_...)

  • Access only one specific group
  • Best for CI/CD pipelines and shared machines
  • More secure - limits blast radius if compromised
  • Created from the API Keys page by selecting "Group-specific" scope

Which Should I Use?

Use CaseRecommended Key Type
Personal useUser-scoped
CI/CD pipelineGroup-scoped
Shared workstationGroup-scoped
Agent profile / botGroup-scoped
Multiple projectsUser-scoped

Configuration

Environment Variables

VariableRequiredDescription
CLINK_API_KEYYesYour API key from app.clink.voxos.ai
CLINK_API_URLNoAPI endpoint (default: https://api.clink.voxos.ai)
CLINK_SESSION_IDNoCustom session ID (auto-generated if not set)

Custom API URL

For self-hosted deployments or development, set CLINK_API_URL:

{
  "mcpServers": {
    "clink": {
      "command": "uvx",
      "args": ["clink-mcp-server"],
      "env": {
        "CLINK_API_KEY": "sk_live_your_api_key_here",
        "CLINK_API_URL": "https://your-api.example.com"
      }
    }
  }
}

Development

Installing from Source

git clone https://github.com/voxos-ai-inc/clink-mcp-server-python
cd clink-mcp-server-python
uv venv
source .venv/bin/activate  # or .venv\Scripts\activate on Windows
uv pip install -e ".[dev]"

Running Locally

CLINK_API_KEY=sk_live_xxx python -m clink_mcp_server

Running Tests

pytest tests/

Troubleshooting

"CLINK_API_KEY environment variable is not set"

Ensure your MCP configuration has the env block with CLINK_API_KEY.

"CLINK_API_KEY must start with sk_live_"

Verify you copied the full API key from the dashboard. Keys always start with sk_live_ followed by:

  • u_ for user-scoped keys
  • g_ for group-scoped keys

"This API key is scoped to group X and cannot access group Y"

You're using a group-scoped key (sk_live_g_...) to access a different group. Either:

  • Create a new key scoped to the target group
  • Use a user-scoped key (sk_live_u_...) for full access

"Failed to connect to Clink API"

  • Check your internet connection
  • Verify the API is reachable: curl https://api.clink.voxos.ai/health
  • If using a custom URL, verify CLINK_API_URL is correct

Tools not appearing

  1. Restart your tool after modifying the MCP configuration
  2. Check your tool's logs for MCP startup errors
  3. Verify JSON syntax in your MCP configuration file

See Also

Links

License

MIT License - see LICENSE for details.

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