Validate a GraphQL SDL schema and return errors, naming-convention warnings, and counts of types, queries, mutations, and subscriptions. Errors cover unbalanced braces, fields without a type, double colons, and malformed return types; warnings cover type names that are not PascalCase, field names that are not camelCase, and a missing Query type.
This page documents the MCP tool findutils:graphql_schema_validator. See the REST reference →
Call it over MCP
Tool name findutils:graphql_schema_validator
· no API keys · 120 requests/min per IP
Claude Code
claude mcp add findutils --transport http https://mcp.findutils.com/ Claude Desktop — claude_desktop_config.json
{
"mcpServers": {
"findutils": {
"url": "https://mcp.findutils.com/"
}
}
} Raw JSON-RPC (any MCP client) — verified example
curl -X POST https://mcp.findutils.com/ \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "graphql_schema_validator",
"arguments": {
"schema": "type Query {\n users: [User!]!\n}\n\ntype User {\n id: ID!\n name: String\n}"
}
}
}' Input schema
| Argument | Type | Required | Description |
|---|---|---|---|
| schema | string | yes | GraphQL schema in SDL (type definitions). |
Example arguments (verified)
{
"schema": "type Query {\n users: [User!]!\n}\n\ntype User {\n id: ID!\n name: String\n}"
} Also a REST endpoint
The same tool answers plain HTTP at
POST /api/tools/graphql-schema-validator/execute — no key, 60 requests/min.
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