Is your API ready for AI agents?
Paste an MCP endpoint or OpenAPI URL. We run real Claude-driven agent workflows against it — not static analysis — and score it 0-100 on how usable it actually is for an AI agent. Results in about 90 seconds.
No account · No credit card · Results in ~90 seconds
“Is my API ready for AI agents?” doesn’t have a good answer yet
Most tools just check whether your OpenAPI spec is syntactically valid. That’s not the same as whether an agent can actually use it without getting stuck.
Check whether your OpenAPI spec is syntactically valid. Say nothing about whether an agent can actually complete a task with it.
Runs a real agent against your real API and reports what actually happened — where it got stuck, what it guessed wrong, whether it finished the job.
How it’s scored
6 dimensions, one letter grade
Every score comes from an agent actually attempting your API — weighted into an overall 0-100 score and an A-F grade.
Tool/API Discoverability
Did the agent find the right tool on the first attempt, or did it have to enumerate the whole catalogue first?
Schema Clarity
Did the agent correctly infer required parameters from tool descriptions, or hallucinate/guess?
Auth Usability
How many steps did authentication take before the agent could actually do anything?
Workflow Completion Rate
% of a realistic multi-step task — create a customer, look up their balance, delete them — the agent actually completed.
Error Recoverability
When something failed, did the agent recover and retry, or just get stuck?
Agent Efficiency
Tool calls and tokens spent per completed step. Lower is better.
Sample report
Specific, actionable — not generic advice
You don’t get “improve your documentation.” You get the exact parameter agents keep getting wrong, and the exact tool call where they got stuck.
- Overall 0-100 score and A-F letter grade
- Per-dimension breakdown with weights
- The exact step where the agent got stuck or guessed wrong
- Concrete fixes, tied to specific tools and parameters
Agents consistently omit customer_id when calling create_subscription — add a concrete example to the tool description.
How it works
Three steps, about 90 seconds, no account.
Paste your endpoint
An MCP endpoint or an OpenAPI spec URL. That's the only input.
A real agent runs against it
A Claude-driven agent attempts realistic multi-step workflows against your live API — no mocking, no static spec linting.
Get a scored report
0-100 score, a letter grade, a breakdown across 6 dimensions, and specific fixes — in about 90 seconds.
Find out in 90 seconds
Free, no account, no credit card. Paste your MCP endpoint or OpenAPI URL and get your score.
Like your results? Turn the report into continuous monitoring on Apixor and get alerted if an agent’s success rate against your API ever degrades.