01
IDEA / REVIEW
Check a Startup Idea's Assumptions
Enter a startup idea to see which customer, problem, and differentiation claims still need evidence. This does not predict success.
TOOLS / 9
Jev tools: try Jev and plan your build
Run six Jev experiments with sample inputs, then use the builders to estimate cost and generate code for your own project. Everything runs in your browser; the experiments call the live model only when you choose to.
EXPERIMENTS / 06
Try an experiment
Each one shows the answers and the app rules that act on them.
02
DRAFT / REVIEW
Check a Draft's Tone and Clarity
Enter a draft to see scores for tone and clarity, then compare versions. The tool does not rewrite your text.
03
AGENT / SIMULATOR
Simulate an Agent's Next Action
Choose a goal in a fictional settings app and watch Jev select the next allowed action, for up to six steps.
04
TASK / ROUTING
Route a Task to the Right Path
Enter a task to see which route Jev selects and whether your app rules allow that route or require review.
05
CONTEXT / SELECTION
Select Relevant Context
Enter a task and context blocks to see which blocks stay relevant. Required instructions remain pinned.
06
CLAIM / EVIDENCE
Compare a Claim with Supplied Evidence
Enter a claim and evidence you provide to see whether the evidence supports, contradicts, or does not address it. The tool does not search the web.
BUILDERS / 03
Plan and build
COST
Jev pricing calculator
Paste a sample input, set your daily volume, and see what Jev would cost per call and per month, next to a typical LLM.
API
Jev AI API request builder
Write a state and a few questions, then copy a working request for TypeScript, curl, or Python.
MCP
Jev MCP config generator
Pick your agent and an MCP server, and copy the install command or JSON config. No key needed.
ECOSYSTEM