GraphQL Fragment Merger Connector for AI agents.
1 live capability
Flatten GraphQL fragments into single, valid queries.
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Why people use GraphQL Fragment Merger
GraphQL Fragment Merger fixes broken GraphQL API requests
With this MCP, you just pass the messy query through. It does the recursive work for you, leaving you with a single, flat operation that is ready to run.
What Vinkius changes
You get a clean, flat query that works anywhere.
Use it from Claude, ChatGPT, Cursor or another AI client you already have.
One account · 6,100+ Connectors
- Real-world use case 01
Fixing broken agent requests
An engineer asks Claude to fetch user data, but the generated query uses fragments that the server rejects.
- Real-world use case 02
Automating API testing
A developer uses an agent to generate test payloads for a GraphQL API.
Complete set · 1capability
The complete GraphQL Fragment Merger capability set.
These are the exact actions your AI can choose when you ask it to work with GraphQL Fragment Merger.
01
1 capability in this set.
Part of 1 available through GraphQL Fragment Merger.
- 01 Capability
Merge graphql fragments
Takes a query with fragments and inlines them into the main operation. This ensures your API requests are valid even if the endpoint lacks fragment support.
Set up in minutes
One URL. Then ask GraphQL Fragment Merger to work.
Claude and ChatGPT only need the Connector URL. Copy it once, add it in settings, and use GraphQL Fragment Merger from the conversation.
Choose your client
Live previewAdvanced clients IDE · CLI
Claude · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp - Step 01
Open Connectors
In Claude Web or Claude Desktop, open Settings and choose Connectors.
- Step 02
Add the URL
Choose Add custom connector, name it GraphQL Fragment Merger, and paste the URL above.
- Step 03
Turn it on in chat
Select +, open Connectors, and enable GraphQL Fragment Merger for the conversation.
ChatGPT · Web + desktop
Connector URL · ready to paste
Streamable HTTPhttps://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp - Step 01
Open MCP settings
On desktop, open Settings and MCP servers. On web, open your workspace app or connector settings.
- Step 02
Add the URL
Choose Add server with Streamable HTTP, or create a custom MCP app, then paste the GraphQL Fragment Merger URL.
- Step 03
Save and start
Save the connection and enable GraphQL Fragment Merger in your conversation. Desktop may ask you to restart once.
Cursor · IDE configuration
Advanced setup
{
"mcpServers": {
"graphql-fragment-merger": {
"url": "https://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp"
}
}
}- Step 01
Open MCP Settings
Press Cmd+Shift+P (macOS) or Ctrl+Shift+P (Windows/Linux) → search "MCP Settings"
- Step 02
Add the server config
Paste the JSON configuration above into the mcp.json file that opens
- Step 03
Save the file
Cursor will automatically detect the new Connector
- Step 04
Start using GraphQL Fragment Merger
Open Agent mode in chat and ask: "Using GraphQL Fragment Merger, help me...". 1 tools available
VS Code Copilot · IDE configuration
Advanced setup
{
"mcpServers": {
"graphql-fragment-merger": {
"url": "https://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp"
}
}
}- Step 01
Create MCP config
Create a .vscode/mcp.json file in your project root
- Step 02
Add the server config
Paste the JSON configuration above
- Step 03
Enable Agent mode
Open GitHub Copilot Chat and switch to Agent mode using the dropdown
- Step 04
Start using GraphQL Fragment Merger
Ask Copilot: "Using GraphQL Fragment Merger, help me...". 1 tools available
Windsurf · IDE configuration
Advanced setup
{
"mcpServers": {
"graphql-fragment-merger": {
"url": "https://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp"
}
}
}- Step 01
Open MCP Settings
Go to Settings → MCP Configuration or press Cmd+Shift+P and search "MCP"
- Step 02
Add the server
Paste the JSON configuration above into mcp_config.json
- Step 03
Save and reload
Windsurf will detect the new server automatically
- Step 04
Start using GraphQL Fragment Merger
Open Cascade and ask: "Using GraphQL Fragment Merger, help me...". 1 tools available
Cline · IDE configuration
Advanced setup
{
"mcpServers": {
"graphql-fragment-merger": {
"url": "https://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp"
}
}
}- Step 01
Open Cline MCP Settings
Click the Connectors icon in the Cline sidebar panel
- Step 02
Add remote server
Click "Add Connector" and paste the configuration above
- Step 03
Enable the server
Toggle the server switch to ON
- Step 04
Start using GraphQL Fragment Merger
Ask Cline: "Using GraphQL Fragment Merger, help me...". 1 tools available
Claude Code · Terminal command
Advanced setup
claude mcp add graphql-fragment-merger --transport http "https://edge.vinkius.com/vk_preview_FF6uqVOpEFqWYmM3ysP7BLOCgkZbenjL7WWaqQoA/mcp"- Step 01
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
- Step 02
Add the Connector
Run the command above in your terminal
- Step 03
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
- Step 04
Start using GraphQL Fragment Merger
Ask Claude: "Using GraphQL Fragment Merger, show me...". 1 tools are ready
Where the request belongs
Work GraphQL Fragment Merger can move forward.
Backend engineers and API developers who use AI agents to automate data fetching or testing.
API Engineer
Uses this to ensure queries generated by Cursor or Claude do not fail against legacy GraphQL endpoints.
Frontend Developer
Ensures that AI-generated data fetching logic works perfectly with existing API structures.
Build the capability set
Add more capabilities.
Each Connector adds new actions and data without changing how you work.
Browse Connectors
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Identify breaking changes in GraphQL schemas by comparing SDL strings.
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Instantly connect to your Hasura engine to execute GraphQL queries, manage metadata, analyze SQL execution plans, and monitor server health.
Dot-Notation Object Flattener
Convert deeply nested JSON objects into flat structures using dot-separated keys.
Dot Object Transformer
Flatten deeply nested JSON objects into dot-notation keys, or reconstruct nested objects from flat dictionaries.
jmespath-query-executor
Deterministic JSON querying using simplified JMESPath syntax.
Bring your own AI
Change the model, client or framework. Keep GraphQL Fragment Merger connected.
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Claude -
ChatGPT -
Gemini -
Cursor -
VS Code -
Windsurf -
ZCode -
Cline -
Zed -
Continue -
Kiro -
Roo Code -
Zencoder -
Goose -
Void -
Augment Code -
Amp -
Qodo -
Tabnine -
Pieces -
Sourcegraph Cody -
JetBrains -
Warp -
Amazon Q -
Antigravity -
BoltAI -
Raycast -
Jan -
LM Studio -
AnythingLLM -
Open WebUI -
Msty -
Cherry Studio -
LibreChat -
TypingMind -
Chorus -
5ire -
n8n -
LangChain -
LlamaIndex -
CrewAI -
Vercel AI SDK
Before you connect
Questions about GraphQL Fragment Merger.
The practical details behind the request, access and result.
How does GraphQL Fragment Merger prevent API errors?
It removes all fragment spreads and replaces them with the actual fields, so your server receives a complete query it can understand.
Will GraphQL Fragment Merger work with nested fragments?
Yes. The capability recursively follows every fragment definition until the entire query is flattened into a single layer of fields.
Can I use GraphQL Fragment Merger with Claude or Cursor?
Absolutely. Any MCP-compatible client can use this to clean up queries before they are sent to your GraphQL endpoint.
Does GraphQL Fragment Merger change the actual data returned?
No. It only changes the structure of the query string itself. The fields being requested remain exactly the same.
Is GraphQL Fragment Merger useful for legacy APIs?
It is specifically designed for this. If your older API does not support modern fragment syntax, this capability makes your agent's queries compatible.
What does the `merge_graphql_fragments` capability actually do?
It takes a GraphQL query string with fragments and returns a single, flattened query string where all fragment spreads have been replaced by their actual field definitions.
Does it support nested fragments?
Yes, the capability recursively processes fragment definitions to ensure all levels of nesting are resolved into the final query string.
What happens if a fragment is not defined?
The capability will return the merged_query_string as processed so far, along with an unresolved_fragments list containing the names of the missing fragments.
One connection away
Give your agent a direct line to GraphQL Fragment Merger.
Connect GraphQL Fragment Merger once. Keep it beside 6,100+ managed Connectors when the next task needs more.
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