Loading workspace...

Jev API for Fast, Structured AI Decisions Jev API

Turn application context into choices, scores, and probabilities your software can use.

Build decision workflows with Jev API, powered by TypeSafe AI's first System One model. Classify incoming requests, evaluate content, and select the next step using typed answers. Jev API connects contextual judgment with the rules you control in code. Give your application focused questions, inspect uncertainty, and decide when to automate or request review. Start with one practical decision and expand as your evaluation results support it.

Discover Jev API use cases
Understand structured evaluation
Plan your first integration
Hero image
Jev API

What Can You Build with Jev API?

Explore Jev API for focused decisions across support, content operations, and agent workflows. Begin with a measurable task and examples that represent real traffic.

Why Build with Jev API?

Use Jev API where software needs a clear decision: a category, a rating, or a yes/no probability. Design the available outcomes around your application.

Jev API: Answers Your Code Can Use

Jev API: Answers Your Code Can Use

Jev API returns typed results for defined questions. Route a ticket to a supported department or map a product to an existing category. Your application receives a bounded answer that fits the decision you specified.

Jev API: Several Questions, One Shared Context

Jev API: Several Questions, One Shared Context

Ask about intent, urgency, and sentiment together through Jev API. Questions run independently and in parallel against the same state. This structure lets you collect several decision signals without constructing a separate conversation for each one.

Jev API: Uncertainty You Can Act On

Jev API: Uncertainty You Can Act On

Jev API exposes probabilities, with additional confidence values for Choice and Score. Set review thresholds in code, examine ambiguous cases, and adjust your workflow based on observed performance. A confidence estimate is a signal, not proof of correctness.

Jev API: Fits Around Your Existing Application

Jev API: Fits Around Your Existing Application

Use Jev API to select a handler while your existing services carry out the work. Keep generation with a language model and calculations in code. This separation makes it easier to test each decision and understand where improvements are needed.

How to Integrate Jev API

Plan a Jev API workflow around four steps: define the decision, prepare relevant context, submit typed questions, and evaluate the results.

1

1. Define the Decision

Choose one focused task for Jev API, such as identifying a support category. Define valid outcomes and write down how you will judge success. Use Choice for categories, Score for ordered levels, or Noul for a yes/no question.

2

2. Prepare the State

Give Jev API the relevant text or structured record as state. Keep useful context together and remove unrelated material. Describe category boundaries explicitly so the question matches the decision your application actually needs.

3

3. Send Typed Questions

For direct TypeSafe access, call POST https://api.typesafe.ai/v1/systemone with Bearer authentication and the model, state, and questions fields. The official Jev API quickstart uses jev-latest. Keep your key on the server and follow your chosen provider’s configuration.

4

4. Evaluate and Connect

Read Jev API answers under the question IDs you supplied. Test clear, ambiguous, and exceptional inputs. Set routing thresholds, handle failed requests, and log the returned model version before expanding the workflow to more traffic.

Jev API: Six Team Perspectives

Fictional testimonial-style examples for Jev API use cases. These names, roles, and statements are illustrative placeholders, not verified customer endorsements.

Illustrative example

For my integration, I would use Jev API to map incoming requests to supported handlers. Explicit categories would let me keep the routing logic readable and test each branch independently.

Amelia Brooks
Amelia Brooks
Backend Engineer
Illustrative example

I would evaluate Jev API on our historical tickets before changing assignment rules. My priority would be identifying ambiguous requests and keeping those cases visible to the support team.

Rafael Mendoza
Rafael Mendoza
Customer Support Operations Manager
Illustrative example

Jev API would fit a review queue where relevance and completeness need separate scores. I would define the rubric with editors, compare judgments, and tune the combined ranking in code.

Nadia Okafor
Nadia Okafor
Content Quality Analyst
Illustrative example

I would place Jev API at a specific decision point, such as selecting the next specialist. The agent would still need its own tools, execution logic, and checks around each action.

Ethan Sato
Ethan Sato
AI Agent Architect
Illustrative example

I would test Jev API for assigning product descriptions to our existing catalog categories. Clear definitions and a review route for unusual items would matter more to me than adding more labels.

Leila Haddad
Leila Haddad
E-commerce Catalog Lead
Illustrative example

My first Jev API project would target one repetitive classification task. I would measure decision quality, review volume, and operating cost before expanding to additional workflows.

Oliver Lindholm
Oliver Lindholm
Product Automation Strategist

Jev API FAQ

Find answers about Jev API capabilities, integration, pricing, and practical limits.

Jev API is an interface to Jev, TypeSafe AI’s System One model for structured decisions. Supply application context and typed questions to receive choices, scores, or yes/no probabilities that your software can use.

From Context to Action

Build Your Next Decision Workflow with Jev API

Start with a task your team can measure. Define the outcomes, test realistic examples, and connect the results to your application. Explore Jev API for classification, routing, and scoring, then grow your automation around evidence from your own workflow.

Typed choices, scores, and probabilities
Multiple questions against shared context
Application logic stays under your control