Development

GraphQL Playground

An in-browser GraphQL client: write queries and variables, send them to any GraphQL endpoint, and inspect formatted JSON results or error arrays — perfect for iterating on schemas during development

interactive· Interactive resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/graphql-playground' \
  -H 'Content-Type: application/json' \
  -d '{"endpoint":"https://api.example.com/graphql","query":"# Welcome to the GraphQL Playground.\n# Replace the endpoint below, then click \"Send Query\".\n#\n# Example against the public Countries API:\n#   https://countries.trevorblades.com/\n\nquery {\n  continents {\n    code\n    name\n  }\n}","variables":"{}","headers":"Authorization: Bearer token\nx-api-key: xxx"}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/graphql-playground

Parameters

Name	Type	Required	Description
endpoint	text	No	—
query	textarea	No	—
variables	textarea	No	—
headers	textarea	No	—

Response format

Interactive result

JSON

{
  "result": "Initial display content",
  "interactive": true,
  "components": [
    {
      "type": "timer",
      "id": "timer1",
      "config": {
        "label": "Countdown",
        "duration": 60
      }
    }
  ],
  "state": {
    "key": "value"
  },
  "actions": [
    {
      "type": "start",
      "id": "start-btn",
      "label": "Start"
    }
  ],
  "styles": "/* Custom CSS */",
  "scripts": "/* Client-side scripts */",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-graphql-playground": {
      "name": "graphql-playground",
      "description": "An in-browser GraphQL client: write queries and variables, send them to any GraphQL endpoint, and inspect formatted JSON results or error arrays — perfect for iterating on schemas during development",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=graphql-playground",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "graphql-playground",
    "arguments": {
  "endpoint": "https://api.example.com/graphql",
  "query": "# Welcome to the GraphQL Playground.\n# Replace the endpoint below, then click \"Send Query\".\n#\n# Example against the public Countries API:\n#   https://countries.trevorblades.com/\n\nquery {\n  continents {\n    code\n    name\n  }\n}",
  "variables": "{}",
  "headers": "Authorization: Bearer token\nx-api-key: xxx"
}
  }
}

Browse tools Open tool

curl -X POST 'https://api.elysiatools.com/en/api/tools/graphql-playground' \ -H 'Content-Type: application/json' \ -d '{"endpoint":"https://api.example.com/graphql","query":"# Welcome to the GraphQL Playground.\n# Replace the endpoint below, then click \"Send Query\".\n#\n# Example against the public Countries API:\n# https://countries.trevorblades.com/\n\nquery {\n continents {\n code\n name\n }\n}","variables":"{}","headers":"Authorization: Bearer token\nx-api-key: xxx"}'

Name

Type

Required

Description

endpoint

text

—

query

textarea

—

variables

textarea

—

headers

textarea

—

{ "result": "Initial display content", "interactive": true, "components": [ { "type": "timer", "id": "timer1", "config": { "label": "Countdown", "duration": 60 } } ], "state": { "key": "value" }, "actions": [ { "type": "start", "id": "start-btn", "label": "Start" } ], "styles": "/* Custom CSS */", "scripts": "/* Client-side scripts */", "error": "Error message (optional)", "message": "Notification message (optional)", "metadata": { "key": "value" } }

{ "mcpServers": { "elysiatools-graphql-playground": { "name": "graphql-playground", "description": "An in-browser GraphQL client: write queries and variables, send them to any GraphQL endpoint, and inspect formatted JSON results or error arrays — perfect for iterating on schemas during development", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=graphql-playground", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "graphql-playground", "arguments": { "endpoint": "https://api.example.com/graphql", "query": "# Welcome to the GraphQL Playground.\n# Replace the endpoint below, then click \"Send Query\".\n#\n# Example against the public Countries API:\n# https://countries.trevorblades.com/\n\nquery {\n continents {\n code\n name\n }\n}", "variables": "{}", "headers": "Authorization: Bearer token\nx-api-key: xxx" } } }