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The desktop runtime for agent-ready API workflows

Make your APIs agent-ready. Then actually run them.

Spirefy Studio scores and fixes your OpenAPI, AsyncAPI, and Arazzo specs until an AI agent can actually use them — then runs the workflows you build on them as durable runs that pause for a human or another agent and resume exactly where they left off — on your machine or in your org's cloud. Your workflows stay portable as standard Arazzo, and stay in sync when the contract changes.

Download Spirefy Studio See how it works

Native for macOS, Windows, and Linux, built on WebAssembly, not a bundled browser.

Spirefy Studio
Unified model
  • GET /users/{id} accounts-api
  • POST /orders orders-api
  • schema User 3 sources
  • schema Address 5 sources
  • schema Money 2 sources
Schematic of Spirefy Studio. Real captures arrive as the beta opens.
How it works

One model. Every step on it.

Most teams stitch their API lifecycle across four or five separate tools that share no data model, so the work breaks at every handoff. Spirefy Studio puts the whole job on one model, so design, governance, workflows, and generation all read the same source of truth and the work stays in continuity from import to output.

Explore Spirefy Studio
  1. 01

    Import

    Start from the integrations catalog of popular APIs, pick the operations you want, or bring your own OpenAPI, AsyncAPI, and Arazzo. Postman, Bruno, Insomnia, and more are marketplace plugins, already built.

  2. 02

    Unify

    Group the specs that belong together, all of HR's APIs or one service and its events, into a project. Every endpoint and schema lands in one model, tagged with its source, so duplication across services is visible in one place.

  3. 03

    Shape and govern

    Browse the whole surface and hold it to a standard in the API Workshop. Spectral linting and AI-readiness run as plugins on the model, and where a finding is AI-fixable, the on-device model drafts the fix for you to approve.

  4. 04

    Build workflows

    Compose multi-step workflows across endpoints from different APIs, all resolved against the same model. A superset of Arazzo, with conditions, loops, and your own WebAssembly logic inline, so you branch, retry, and transform without leaving the flow.

  5. 05

    Run anywhere

    The runtime is a standalone engine, not a feature locked in the app. Run a workflow in the app with full logs, headless on the spirefy CLI, or in your own hosted cloud, and call that engine from your code, your CI, or an LLM. Runs are durable: they can pause for a human or another agent and resume exactly where they left off.

  6. 06

    Generate

    Generate servers, documentation, and client SDKs from the model, in the app for one-off output or as a step in a workflow. Bring your own code generator as an export plugin.

  7. 07

    Collaborate

    Work the same model with your team in real time. Ad-hoc on your network, or a persistent shared workspace on a service that only forwards changes it cannot read.

Where you start

What are you trying to ship?

One engine underneath, two ways in — depending on the job in front of you.

  • You're wiring AI agents to real APIs

    Build API workflows on a canvas and run them on your machine or in your org's cloud — durable runs that pause for a human or another agent. Pull operations from the integrations catalog or your own specs, and export to the CLI when you want it in CI.

    Developers & agent builders

  • You own a sprawl of API contracts

    Bring every team's APIs onto one governed model — and keep your agent-ready specs in sync when the upstream contract changes.

    Platform teams
Standards, not lock-in

Open formats first: OpenAPI 3.0 and 3.1, AsyncAPI, and Arazzo, from the team whose founder co-authored the Arazzo Specification.

Signed and sandboxed

Every plugin is a WebAssembly module, signed with post-quantum ML-DSA and run inside a capability-gated sandbox.

Zero-trust collaboration

Ad-hoc on your network, or a persistent shared workspace on a service that only forwards changes it cannot read.

One model. Every craft. No handoffs.

Bring your APIs into a single model and run the whole job against it: design, governance, workflows, and code generation, each reading the same source of truth. Add the plugins you need, and only the set you switch on runs, so your workspace stays focused and fast.

Download it and work, no account needed: every spec with its environments and variables, and real-time collaboration on your network. You pay us when your estate grows past two API sources, for the on-device AI model, for a persistent shared workspace, or for organization-wide governance.

Download Spirefy Studio View pricing

Under the hood, every capability is a signed, sandboxed WebAssembly plugin. How it is built.