Validate a JSON string. Returns type + shape summary, or a parse error with position.
This page documents the HTTP endpoint POST /api/tools/json-validate/execute. See the MCP reference →
Call it over REST
POST https://api.findutils.com/api/tools/json-validate/execute · no API keys · 60 requests/min per IP
Execute — verified arguments
curl -X POST https://api.findutils.com/api/tools/json-validate/execute \
-H "Content-Type: application/json" \
-d '{
"json": "{\"ok\":true}"
}'Parameter schema for this endpoint
curl https://api.findutils.com/api/tools/json-validateInput schema
| Argument | Type | Required | Description |
|---|---|---|---|
| json | string | yes | JSON string to validate. |
Example arguments (verified)
{
"json": {
"ok": true
}
}Arguments that carry JSON as a string are shown decoded for readability. The Copy button copies the exact wire arguments.
Also an MCP tool
Claude, Cursor, and any MCP client can call this tool as
findutils:json_validate after one connect command.
Connect once
claude mcp add findutils --transport http https://mcp.findutils.com/More Validation tools
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