MCP Integration

What are MCP Servers?

Model Context Protocol (MCP) is a unified protocol that lets Writingmate’s AI models call out to external tools (APIs, databases, automation platforms, Google Docs, etc) in a consistent and secure way.

When a server is connected, its tools become instantly callable inside prompts (no extra code required).

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Use Writingmate as an MCP Server

Writingmate can also be connected to external MCP hosts as a remote MCP server. This is useful when an agent client supports MCP and you want it to call Writingmate model and generation tools.

The Writingmate MCP server exposes tools for:

• listing Writingmate models
• retrieving model metadata
• creating OpenAI-compatible chat completions
• creating OpenAI-compatible Responses API responses
• generating images
• starting and polling video generations

Test initialization with cURL:

curl https://writingmate.ai/api/mcp \
  -H "Authorization: Bearer YOUR_WRITINGMATE_DEVELOPER_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{
    "jsonrpc": "2.0",
    "id": "init",
    "method": "initialize",
    "params": {
      "protocolVersion": "2025-11-25",
      "capabilities": {},
      "clientInfo": { "name": "my-agent-client", "version": "1.0.0" }
    }
  }'

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How to Add an Zapier MCP Server with 8000+ Tools

1. Login to the app on https://writingmate.ai.
2. Go to Sidebar → click on your Profile, than go to Settings → MCP Integration

1. Create Zapier MCP Server
   1. Create a Zapier account (if you don't have one) at https://zapier.com
   2. Navigate to https://mcp.zapier.com/mcp/servers
   3. Click the New MCP Server button
   4. Select Others as Client Connection
   5. Enter a name for your server and click Create
   6. Go to Configure → Add tool and add the tools you want to use.
   7. Click on the Connect tab and copy the generated MCP server URL
2. Connect Zapier MCP Server to Writingmate
   1. Click Add Server button
   2. Paste the Zapier MCP server URL as "MCP Server URL"
   3. Choose your preferred transport type (Streamable recommended)
   4. Click Add Server to save
   5. Complete OAuth authentication when prompted
   6. Your Zapier tools will automatically appear below once connected!

Pro-tip – Prefer the Visual Editor unless you need low-level JSON tweaks.
You can switch editors at any time; changes stay in sync.

Connecting Ahrefs MCP

Ahrefs supports two remote MCP authentication modes:

• OAuth: add https://api.ahrefs.com/mcp/mcp as the MCP Server URL and click Connect when Writingmate asks for authentication.
• MCP key: generate an MCP key in Ahrefs, then use the JSON editor with an Authorization header:

{
  "mcpServers": {
    "ahrefs": {
      "url": "https://api.ahrefs.com/mcp/mcp",
      "transport": "streamable_http",
      "headers": {
        "Authorization": "Bearer YOUR_AHREFS_MCP_TOKEN"
      }
    }
  }
}

Use an Ahrefs MCP key for YOUR_AHREFS_MCP_TOKEN; regular Ahrefs API keys and MCP keys are not interchangeable.

Connecting OAuth-based remote MCP servers

For remote HTTP MCP servers that advertise standard MCP authorization metadata, add the server URL and click Connect when Writingmate asks for authentication. Writingmate discovers the protected resource metadata, starts OAuth with the authorization server, and includes the MCP resource parameter during authorization and token exchange.

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How to use connected MCP tools in Writingmate chat

After successful authentication:

• Start new chat in Writingmate – you will see a new icon :wrench: .
• Tap on it and select either all tools or just the tools you want to work with.
• Start conversations like "Send an email via Gmail" or "Create a calendar event"

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FAQ

Are calls to MCP tools counted against my token quota?
Only the text prompt portion uses Writingmate tokens. External API usage (e.g., Stripe requests) is billed by the tool provider.

How can I remove a server?
Sidebar → Settings → MCP Integration → click the 🗑 delete icon next to the MCP server you want to delete.

What platforms can be connected to Writingmate via Zapier MCP?
Any of 8000+ which are supported by Zapier MCP. This includes Google Drive, Gmail, Outlook, Slack, Zoom, Calender, Zendesk, Wordpress, Reddit, Jira, ClickUp, Google Analytics, and many, many more. You can explore supported tools on Zapier Integrations page.