AI agents with Brex webhooks

Receive Brex webhooks on Trigger.dev and use them to start, resume or message your AI agents.

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What you can do with Brex webhooks

Start an agent

Brex events can start a new agent run. For example, an agent that looks into every failed Brex transfer.

Resume an agent

An agent can pause until the Brex event it needs arrives, for up to 90 days, and costs nothing while it waits.

Message an agent

Brex events can land in a running agent's conversation, so it acts on them with full context.

Events you can receive from Brex

Some of the events Brex sends. Your agent can filter on any of them.

View all events
TRANSFER_PROCESSED

Transfer processed

TRANSFER_FAILED

Transfer failed

EXPENSE_PAYMENT_UPDATED

Card expense payment updated

REFERRAL_ACTIVATED

Referral activated

USER_UPDATED

User updated

Example

An agent that looks into every failed Brex transfer

import { webhook, webhooks } from "@trigger.dev/sdk";


export const brex = webhooks.endpoint.define({
  id: "brex",
  source: webhooks.brex(),
});


export const brexEvents = webhook({
  id: "brex-events",
  endpoint: brex,
  filter: "event.event_type == 'TRANSFER_FAILED'",
  onEvent: async ({ event }) => {
    // Start, resume or message your agent with the event
    console.log(event);
  },
});

Handled for you

Docs

Verified for you

webhooks.brex() checks the Brex signature on every request. Bad requests are rejected before anything runs.

Retries don't run twice

Retries are matched on the svix-id header, so a retried webhook doesn't start a second run.

Filter before anything runs

Only the Brex events you care about start a run. Filtered webhooks use no compute.

See every delivery

Every webhook is recorded with its payload, headers and the agents it reached, so you can debug it and replay it.

Get started

  1. 1

    Set up the agent

    Copy the starter prompt into your coding agent, like Claude Code, Cursor or Codex. It creates a Trigger.dev project and adds the webhook endpoint. Prefer to write it yourself? Start from the example above.

  2. 2

    Add the webhook in Brex

    Deploy your project, or run trigger dev, and the endpoint appears on the Webhooks page of the Trigger.dev dashboard with its URL. Add that URL in Brex's webhook settings and pick the events you need. The endpoint's Copy setup prompt button gives your coding agent the exact steps.

  3. 3

    Add Brex's signing secret

    Copy the signing secret from Brex. Then on the endpoint's page in the Trigger.dev dashboard, choose Set signing secret and paste it in, so Trigger.dev can check every request really came from Brex.

  4. 4

    Try it

    Send a test event from Brex, or use the endpoint's Test tab. It appears on the endpoint's Deliveries tab, with the agents it reached.

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Ready to build with Brex webhooks?

Declare an endpoint, deploy, and paste the URL into your provider.

Get started for free