Rolling your own can be the right call.
The runtime is your product, owning every layer is deliberate, and you have the team to operate it for the long haul.
Mobius vs. building it yourself
A demo agent is easy. A reliable one is a backend, and someone has to build and operate it. Here is the stack you would own instead of Mobius.
| Decision point | Roll your own | Mobius |
|---|---|---|
| Durable execution | Stand up Temporal or Inngest and wire every workflow | Durable runs, retries, and queueing, built in |
| Triggers | Build and operate the dispatcher yourself | Schedules, events, and verified webhooks |
| Integrations + auth | OAuth, webhook verification, and per-tool wiring for each | 30+ managed integrations, auth handled |
| Memory | Pick a store and build recall and ranking | Agent memory with recall and ranking, across runs |
| Cost control | Meter tokens and enforce caps on your own | Per-run budgets and spend visibility |
| Model portability | Provider-specific code and your own abstraction | Model-agnostic runtime, swap per step |
| Observability | Ship logs and maintain a dashboard | Run history, proofs, and artifacts on every run |
| Human approval | Bolt a Slack message onto the flow | First-class approval gates that suspend the run |
When to build, when to buy.
None of it is the agent, and it is months of work before the first one ships. The question is whether the backend is your product, or in the way of it.
Buy the backend, build the agent.
You want to ship agents, not run infrastructure. Mobius operates the backend so your team builds the part that is actually yours.
Skip the backend. Build the agent.
Start free, connect the tools your team already uses, and ship a reliable agent without operating the stack under it.