ARD validator
Check the file that tells AI about your business
Enter your domain. This looks for your ard.json — the file AI assistants read to understand what you offer — and checks it against the open ARD standard.
Check your file
Looks for /.well-known/ard.json · Checked against ARD v0.91
What you get back
- Must fix
- Things the standard requires. Without these, your file does not match it.
- Worth fixing
- Your file is still valid without these, but they make it more useful.
- How well it describes you
- Our read on how clearly your file describes you — not part of the standard.
Questions
Agentic Resource Discovery — an open specification for a file you put on your own domain that tells AI assistants what your business offers. It is governed by an oversight board that includes Google, Microsoft, Hugging Face and Amazon.
At /.well-known/ard.json on your own domain. The domain is the identity: it is what ties the entry to your business rather than to a profile on someone else's platform.
Two things. Errors are what the standard requires: required fields, the format of your identifier, and the rule that an entry either links to its artifact or embeds it — never both. These come from the project's own JSON Schema, so they are the standard's answer rather than ours. Warnings are what it recommends: your file is valid without them, and the official conformance tester still flags them. The one that matters most is the list of questions your customers ask, because a discovery service builds its search index from it.
Our own read on how well your file describes you, separate from whether it is valid. The score is ours, not part of the ARD standard. Being listed is not the same as being chosen: when an index holds thousands of entries, the match is decided by how clearly your file says what you do, who it suits, and what you do not take on.
ARD v0.91, published in August 2026. The check runs against the project's own JSON Schema, pinned to a specific commit, so the answer does not change under you without us updating it. Before v0.91 the file lived at /.well-known/ai-catalog.json. That path still works for some readers, but it is now optional for them to check — so publish ard.json.
No. Validation says the file can be read. Which business an assistant picks depends on how well the file describes what you do, and on whether a discovery service has indexed you at all. That part of the ecosystem is still early.
No. You can, and this tool will check it either way. The alternative at Fugentic is a guided setup where you describe what you offer in plain language, and the platform generates the file, hosts your agent and registers it.
Want this file generated for you?
Describe what you offer in a guided setup. The platform generates the file, hosts your agent and registers it — no code.