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Where integrations actually run

One runtime doing the work nobody wants to write twice.

For every call, Engine decides whether it is allowed, resolves the credential, applies the policy, makes the request, and records what happened. Applications and agents get one consistent way in. You get one place to change how any of it behaves.

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Runs in your environment. Shared across products. Credentials never leave it.
Applications and agents use interfaces that fit their work while Fused provides one protected and reliable path to external services.APPLICATIONSAGENTSPRODUCT INTERFACEApplication interfaceclear product intentAGENT INTERFACEMCP serverfocused discovery + actionFUSED ENGINEMake it dependable.Reach every trusted serviceKeep sensitive access protectedRun requests and events reliably● RUNNING WHERE YOU CHOOSEEXTERNAL SERVICES

Install the runtime

Download Fused Engine.

Choose a release for your host or pull the container image for Docker and Kubernetes. A Fused license key and Registry connection are required at runtime.

Download the latest releaseBinaries and release notes from GitHubPull the Engine containerDeploy through Docker or Kubernetes

Inside the Engine

Five things you only have to get right once.

Access, credentials, governance, resilience, and visibility. Improve any of them in the Engine and every application and agent in the company gets the improvement.

01Contract-aware executionEngine runs approved operations, not arbitrary URLs, so undeclared inputs get rejected before they reach a provider.
02Credentials + OAuthSecrets and connected accounts are resolved when an approved operation runs, and never handed back to the caller.
03Governance by teamService access and shared rate limits are enforced once, instead of re-implemented in every product.
04Reliable executionRetries, pagination, concurrency, and provider rate-limit handling live in the runtime shared across interfaces.
05Logs + service analyticsOne activity trail shows how integrations perform and which services teams actually use.

Thin on the hot path.

Engine is built to add control rather than waiting—the checks, credential resolution, and policy all happen on the way to a call you were going to make anyway.

Governance that scales past one team.

Decide who can use each service, how credentials and OAuth connections get resolved, and where shared limits apply. Once, centrally, for everyone.

Integrations you can actually operate.

Central retries, logs, and usage analytics make service health and adoption visible without instrumenting each product separately.

A closer look

One runtime for approved operations.

Engine runs selected service operations for SDKs and MCP servers. Unified Apps can author a TypeScript entry point over those approved operations.

01

Select the capability

Choose exact service versions and operations before creating an SDK, MCP server, or Unified App.

02

Run through Engine

Engine checks each operation against app scope, credentials, and provider policy before dispatch.

03

Keep authored behavior together

A Unified App packages its TypeScript entry point with the approved operations it can call.

04

Inspect each execution

Activity records show what ran and which service operations were used.

Put the integration work somewhere sensible.

Run Engine in the environment you choose, and give every application and agent in the company the same way in.

Request a license key