WorkerKitAI workers for Messaging APIs apps
Let an AI worker send the message without handing it the ability to message anyone. Recipients are scoped, and sending is always its own grant.
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What is an AI worker for Messaging APIs?
An AI worker for messaging APIs is a scoped connection to a transactional messaging or email delivery provider that can send messages under rules set outside the model. Because these providers exist to reach people outside the company, recipient rules are enforced at the point of sending rather than left to instructions.
What these workers do
Send the notification that has to go out
A worker delivers the alert or confirmation an event calls for, to recipients you have allowed.
Close the loop after the work
When a task completes, the person waiting on it hears about it without anyone remembering to say so.
Reach someone off the usual channel
When something is genuinely urgent, a worker can reach a person outside the tools they are not currently watching.
How an AI worker runs in your Messaging APIs apps
This category is outbound by definition, which changes the risk. A mistake here does not stay inside the building.
Recipient rules are the control that matters. Blocked recipients are rejected when the send is attempted, so a worker that has been talked into an unwise message still cannot deliver it.
Rate limits are a safety feature, not a billing one. They bound how wrong a run can go before anyone notices.
Keep sending credentials scoped to the job. A provider key is usually far more powerful than the task requires.
Messaging APIs questions, answered.
Can it message anyone it likes?
No. Recipient rules are enforced when the send is attempted, and a blocked recipient is rejected. The check runs outside the model, so a worker that has been talked into an unwise message still cannot deliver it. That matters more here than anywhere else, because these providers exist to reach people outside the company and a mistake does not stay inside the building.
Can I cap how much it sends?
Yes. Rate limits apply per token, which bounds the damage a misbehaving run can do. Treat them as a safety control rather than a billing one, because they decide how wrong a run can go before a person notices, which is the difference between one confusing message and a campaign nobody approved. The cap is set per worker, not per account.
Does read access imply send access?
No. Sending is always a separate grant from anything else a worker can do. A worker that reads a tracker, a mailbox or a document store gains no ability to send from any of them, and sending can be turned off without disturbing the reading half of the job. It is the last permission worth turning on and the first one worth reconsidering.
Which providers are supported?
Several, and the same recipient and rate rules apply whichever one is connected. That is the point of scoping outside the provider: the policy is written once and survives a change of vendor. It matters here because a provider key is usually far more powerful than the task requires, and scoping externally is what keeps the grant the size of the job.