Catch the bad call before the provider does
Engine runs approved operations with declared parameters, so undeclared inputs and unsupported behaviour get rejected on the way out—rather than coming back as a provider error at an unsociable hour.
A better integration layer for products
Enable the application.
Build a feature that spans five services and have it read like it spans one. External APIs, internal services, and incoming events arrive through a single typed interface—so more of the sprint goes into the product and less into plumbing.
Less glue code. Faster feature work. Easier operations.
Your productApplication
request
Fused Engine
- One dependable way to every service
- Sensitive access handled outside product code
- Requests and events work together
execute
Internal + external services
verified events return through Engine
What Engine takes off your plate
The parts of an integration nobody wants to own.
Product teams stay on the experiences customers actually see. The repeated work underneath moves into the runtime, where improving it once improves it for everything.
Keep credentials and OAuth out of product code
Engine resolves secrets and the right connected-user account when an approved operation runs. Your application passes the task, never the token.
Keep resilience out of product logic
Retries, pagination, timeouts, concurrency caps, and shared provider rate limits are handled by the runtime, so no single feature needs its own recovery layer.
Understand every request and event
Central logs and service-use analytics show what happened, how integrations are performing, and which services the product has quietly come to depend on.
Treat several services as one operation
A unified operation runs across services in order, feeds each result into the next call, and rolls back the earlier steps when a later one fails—so a half-finished sequence does not turn into an on-call story.
Application interface
Code that reads like the feature, not the plumbing.
A typed interface that says what the product is doing—even when the answer involves three providers and an internal service. Less glue code, safer changes, autocomplete that knows the operations, and one pattern to learn instead of five client libraries.
Less glue code · faster feature work · safer reuse
linearstripeslack
const issue = await fused.Linear.issues.getIssue({ id });
const customer = await fused.Stripe.customers.retrieve({ customerId });
await fused.Slack.messages.send({ channel, text: issue.summary });