Graphql Schema Validator API

POST https://api.findutils.com/api/tools/graphql-schema-validator/execute

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.

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Request body

application/json

schema

string required

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}"
}

curl -X POST https://api.findutils.com/api/tools/graphql-schema-validator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "schema": "type Query {\n  users: [User!]!\n}\n\ntype User {\n  id: ID!\n  name: String\n}"
  }'

const response = await fetch('https://api.findutils.com/api/tools/graphql-schema-validator/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"schema":"type Query {\n  users: [User!]!\n}\n\ntype User {\n  id: ID!\n  name: String\n}"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/graphql-schema-validator/execute",
    json={"schema":"type Query {\n  users: [User!]!\n}\n\ntype User {\n  id: ID!\n  name: String\n}"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/graphql-schema-validator/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"schema":"type Query {\n  users: [User!]!\n}\n\ntype User {\n  id: ID!\n  name: String\n}"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call graphql_schema_validator from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: graphql-schema-validator
MCP name: graphql_schema_validator
Category: SEO
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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