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Available tools

create_batch_offer_request

Create a batch flight search. Searches multiple airlines asynchronously and returns results as they come in.

get_batch_offer_request

Get batch offer request status and results by ID. Poll until status is complete to get all offers.

create_offer_request

Search for flights by creating an offer request. Specify origin, destination, dates, passengers, and cabin class. Returns available offers.

list_offer_requests

List offer requests with pagination. Use cursor from page_info for next page.

get_offer_request

Get offer request details by ID. Returns the original search parameters and any returned offers.

list_offers

List offers for an offer request with pagination. Sort by total_amount or total_duration. Use cursor from page_info for next page.

get_offer

Get offer details by ID. Optionally return available services like bags and seats.

update_offer_passenger

Update passenger details on an offer. Set name, loyalty accounts, or identity documents before booking.

create_order_cancellation

Initiate cancellation of an order. Returns refund details and expiry. Must confirm with confirm_order_cancellation before expiry.

list_order_cancellations

List order cancellations with pagination. Optionally filter by order ID. Use cursor from page_info for next page.

get_order_cancellation

Get order cancellation details by ID. Returns refund amount, status, and expiry time.

confirm_order_cancellation

Confirm an order cancellation. Must be confirmed before expiry. This action is irreversible.

How to set up Merge Agent Handler

In an mcp.json file, add the configuration below, and restart Cursor.

Learn more in the official documentation ↗

1{
2  "mcpServers": {
3    "agent-handler": {
4      "url": "https://ah-api-develop.merge.dev/api/v1/tool-packs/{TOOL_PACK_ID}/registered-users/{REGISTERED_USER_ID}/mcp",
5      "headers": {
6        "Authorization": "Bearer yMt*****"
7      }
8    }
9  }
10}
11
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Open your Claude Desktop configuration file and add the server configuration below. You'll also need to restart the application for the changes to take effect.

Make sure Claude is using the Node v20+.

Learn more in the official documentation ↗

1{
2  "mcpServers": {
3    "agent-handler": {
4      "command": "npx",
5      "args": [
6        "-y",
7        "mcp-remote@latest",
8        "https://ah-api-develop.merge.dev/api/v1/tool-packs/{TOOL_PACK_ID}/registered-users/{REGISTERED_USER_ID}/mcp",
9        "--header",
10        "Authorization: Bearer ${AUTH_TOKEN}"
11      ],
12      "env": {
13        "AUTH_TOKEN": "yMt*****"
14      }
15    }
16  }
17}
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Open your Windsurf MCP configuration file and add the server configuration below.
Click on the refresh button in the top right of the Manage MCP server page or in the top right of the chat box in the box icon.

Learn more in the official documentation ↗

1{
2    "mcpServers": {
3      "agent-handler": {
4        "command": "npx",
5        "args": [
6          "-y",
7          "mcp-remote@latest",
8          "https://ah-api.merge.dev/api/v1/tool-packs/<tool-pack-id>/registered-users/<registered-user-id>/mcp",
9          "--header",
10          "Authorization: Bearer ${AUTH_TOKEN}"
11        ],
12        "env": {
13          "AUTH_TOKEN": "<ah-production-access-key>"
14        }
15      }
16    }
17  }
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In Command Palette (Cmd+Shift+P on macOS, Ctrl+Shift+P on Windows), run "MCP: Open User Configuration".

You can then add the configuration below and press "start" right under servers. Enter the auth token when prompted.

Learn more in the official documentation ↗

1{
2  "inputs": [
3    {
4      "type": "promptString",
5      "id": "agent-handler-auth",
6      "description": "Agent Handler AUTH_TOKEN", // "yMt*****" when prompt
7      "password": true
8    }
9  ],
10  "servers": {
11    "agent-handler": {
12      "type": "stdio",
13      "command": "npx",
14      "args": [
15        "-y",
16        "mcp-remote@latest",
17        "https://ah-api-develop.merge.dev/api/v1/tool-packs/{TOOL_PACK_ID}/registered-users/{REGISTERED_USER_ID}/mcp",
18        "--header",
19        "Authorization: Bearer ${input:agent-handler-auth}"
20      ]
21    }
22  }
23}
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FAQs on using Merge's Duffel  MCP server

FAQs on using Merge's Duffel  MCP server

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Whether you're an engineer experimenting with agents or a product manager looking to add tools, you can get started for free now