DEVTOOL · NO INSTALL
validate json
Check whether text is valid JSON, and optionally whether it matches a JSON Schema (required keys and types). Returns the exact position of a syntax error, and for schema checks the list of specific violations — not just true/false. One URL. No install, no API key, free quota included.
Call it
curl "https://ainetcafe.com/t/validate_json?...params"Response contains a hosted file URL. Free anonymous quota; beyond it $0.001/call (pay per call, or pair for a bigger free tier).
Also callable via MCP and the Python SDK.
Same family
json_yaml — Convert between JSON and YAML in either direction
diff_text — Line-by-line difference between two texts: which lines were added, removed, or changed, with line numbers
jwt_decode — Decode a JWT to see its header and payload, including human-readable expiry (and whether it is already expired)
regex_test — Test a regular expression against sample text: does it match, what did it capture, at which positions
diff_text — Line-by-line difference between two texts: which lines were added, removed, or changed, with line numbers
jwt_decode — Decode a JWT to see its header and payload, including human-readable expiry (and whether it is already expired)
regex_test — Test a regular expression against sample text: does it match, what did it capture, at which positions