THE DECISION-REVIEW API
Give your team a reviewable next step, with a record of why it was selected. DeltaX reviews the options your workflow supplies and returns a selection or a clear refusal. Your application keeps control of execution.
Free access · 100 evaluations / month · No card requiredBy request and approval · Hosted Evaluate 2026-09-16.beta2
¹ Support is supplied by the caller. This illustration sends no API request; the fixed review profile does not infer business rules or verify the supplied facts.
ONE RELEASE. TWO WAYS TO HANDLE IT.
A release agent suggests publishing, but the supplied security evidence is incomplete. Here is what an explicit review adds to that handoff.
The ranking does not tell your application whether publishing belongs inside the review boundary.
External-action candidates remain visible, but cannot become the selected review step.
Illustrative release workflow. Caller-supplied scores and facts are not independently verified. Selection does not publish the release.
YOUR FIRST STEP IS ALREADY PUBLIC
Preflight checks a proposed action against explicit policy and evidence. Use it in your MCP host, a pull request workflow, or your own application—without a DeltaX account.
Find your Preflight setupFind admissible options, missing evidence, or a reason to stop.
If several options remain, keep human selection—or explicitly connect the optional Evaluate API.
Store the receipts. Apply your own permissions before any later action.
START WITH A REAL HANDOFF
Missing evidence before a release? Select a bounded review step before your application handles the release.
02Conflicting sources? Compare supplied claims before your workflow changes a live answer.
03An agent wants to act? Prepare questions for a reviewer while external actions stay outside the boundary.
Illustrative integrations of the fixed review profile. Your application supplies the evidence labels and candidate support.
WHY DELTAX EXISTS
AI workflows can produce plenty of plausible next steps. The harder question is what your application should do with them: which options fit the review boundary, what happens when none do, and what record remains for the person who has to understand the decision later.
DeltaX is built around making that handoff explicit. Preflight checks proposals against owner-controlled rules and evidence. When a separate selection step is useful, Evaluate reviews a finite set of candidates and returns a bounded result with a trace. Your application retains its permissions, approvals, and execution.
The starting point is deliberately practical: one workflow, one review boundary, and an outcome your team can inspect. Try the public examples, read the contract, and bring us a handoff you want to make clearer. That is the conversation the free access program is designed to start.
Tell us about your workflowRead the code and setup guides for the local validator, MCP server, and GitHub Action.
Explore the public tools EXPLICIT CONTRACTReview request fields, supported outcomes, retries, and the boundary between selection and execution.
Read the integration guide CLEAR AVAILABILITYPublic Preflight, restricted hosted API access, and planned subscriptions are listed separately.
Check release statusTAKE IT TO YOUR TEAM
Map the request, review both outcomes, preserve the receipt, and decide who owns the next action.
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BUILD WITH A BOUNDARY
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