Workflows API

GET /workflows returns the workflow definitions currently registered in the project - the shape a runner declared when it connected. It is the read model behind the console’s Workflows view. Definitions are registered by your runners; there is no write endpoint for them. POST /workflows/{app}/{name}/trigger starts one off-schedule run of a registered workflow by identity - see trigger a run manually below.

Method + path	Returns
`GET /workflows`	Every workflow registered in the project.
`POST /workflows/{app}/{name}/trigger`	Starts one run of that workflow. `202 Accepted`.

GET /workflows takes no query parameters - it returns the whole set. Filter client-side by app when you only want one app’s workflows.

Response

An array of workflow definitions:

[
  {
    "name": "fulfillment",
    "app": "support-app",
    "maxAttempts": 3,
    "backoff": "exponential",
    "triggers": [
      { "event": "ticket.created" },
      { "event": "ticket.updated", "if": "event.data.priority == 'high'" }
    ],
    "scheduled": false,
    "flowControl": {
      "concurrency": { "limit": 5, "key": "customerId" },
      "idempotency": { "key": "ticketId", "periodMs": 86400000 }
    },
    "steps": [
      { "name": "validate", "description": "Validate the ticket" },
      { "name": "triage" },
      { "name": "audit", "hidden": true }
    ],
    "registeredAt": "2026-06-01T09:00:00Z",
    "updatedAt": "2026-06-22T10:00:00Z"
  },
  {
    "name": "nightly-report",
    "app": "support-app",
    "maxAttempts": 1,
    "backoff": "fixed",
    "scheduled": true,
    "schedules": [
      {
        "cron": "0 2 * * *",
        "nextFireAt": "2026-06-23T02:00:00Z",
        "lastFiredAt": "2026-06-22T02:00:00Z",
        "isStale": false
      }
    ],
    "registeredAt": "2026-06-01T09:00:00Z",
    "updatedAt": "2026-06-01T09:00:00Z"
  }
]

Field	Meaning
`name`	The registered workflow name - the dispatch key a run records and a `runWorkflow` targets.
`app`	The app the workflow belongs to.
`maxAttempts`	The workflow-wide retry attempt budget (`1` = no retry).
`backoff`	The retry backoff shape: `fixed`, `linear`, or `exponential`. The finer bounds (`initialDelayMs` / `maxDelayMs`) are applied at runtime and are not re-emitted here.
`triggers`	The workflow’s triggers. Each entry sets exactly one of `event` (with an optional `if` CEL guard) or `cron`. Absent when the workflow declared none (it is then implicitly triggered by an event matching its `name`).
`scheduled`	`true` when the workflow has at least one cron schedule. Always present.
`schedules`	The resolved cron schedules, each `{ cron, nextFireAt, lastFiredAt?, isStale }` - see detecting a dead schedule. Absent when the workflow has no cron trigger.
`flowControl`	The configured flow-control policies, in the same millisecond-based shape they were registered with. A present sub-field is an active policy; the whole object is absent when none are set (see below).
`steps`	The advisory step manifest in declaration order. Absent when the workflow declared none.
`registeredAt`	When the workflow was first registered (RFC3339).
`updatedAt`	When its definition was last updated by a re-registration (RFC3339).

Flow control

flowControl re-emits whatever flow-control policies the workflow registered, each as an optional sub-field. A field is present only when that policy is active; all durations are milliseconds:

Sub-field	Shape
`concurrency`	`{ limit, key? }`
`throttle`	`{ limit, perMs, key? }`
`rateLimit`	`{ limit, perMs, key? }`
`debounce`	`{ periodMs, key? }`
`batch`	`{ maxSize, timeoutMs, key? }`
`priority`	`{ shiftMs }`
`singleton`	`{ key?, mode? }`
`idempotency`	`{ key?, periodMs? }`
`cap`	`{ maxCost?, maxTokens? }` - a per-run AI spend ceiling
`tokenThrottle`	`{ tokens, perMs, key? }` - a token-denominated AI throttle

Step manifest

steps is the workflow’s advisory manifest of declared steps, in declaration order. Each entry is:

Field	Meaning
`name`	The declared step id - the id the run view diffs against the run’s actually-executed steps.
`description`	An optional human label for the step. Absent when none was declared.
`hidden`	`true` to exclude a bookkeeping step from a customer-facing progress view. Absent (falsey) otherwise.

The manifest is rendering metadata only: it never gates execution, never fails a run for drift, and never matches emitted opcodes. When a run’s executed steps disagree with the manifest, discovery wins - the run view shows what actually ran. A workflow that declares no manifest behaves exactly the same; the field is simply absent.

TypeScript
REST API

import { createClient } from "@duraton/sdk/client";

const duraton = createClient({ url: process.env.DURATON_URL! });
const workflows = await duraton.workflows.list(); // WorkflowDef[]

curl "$DURATON_URL/workflows"

The wire contract (GET /workflows) is stable, so any language can read it over REST today.

Trigger a run manually

POST /workflows/{app}/{name}/trigger starts one run of one workflow by identity, independent of its declared triggers. It works even for a workflow with only a cron trigger, which POST /events cannot reach - there is no event to send it. See the manual trigger guide for the cron-only case, how this differs from POST /events, and why flow control still applies. Every field is optional, and a request with no body at all is valid - that’s the cron-only case:

TypeScript
REST API

import { createClient } from "@duraton/sdk/client";

const duraton = createClient({ url: process.env.DURATON_URL! });

// Just fire it.
const res = await duraton.workflows.trigger("support-app", "nightly-report");
res.runId;       // absent if a flow-control gate short-circuited it

// With custom input, an event-name label, and tags.
await duraton.workflows.trigger("support-app", "fulfillment", {
  input: { ticketId: "T-421" },
  eventName: "ticket.created",
  tags: { team: "support" },
});

# Just fire it - no body needed.
curl -X POST "$DURATON_URL/workflows/support-app/nightly-report/trigger" \
  -H "Authorization: Bearer $DURATON_API_KEY"

# With custom input, an event-name label, and tags.
curl -X POST "$DURATON_URL/workflows/support-app/fulfillment/trigger" \
  -H "Authorization: Bearer $DURATON_API_KEY" \
  -d '{"input":{"ticketId":"T-421"},"eventName":"ticket.created","tags":{"team":"support"}}'

Request body

Field	Type	Meaning
`input`	any JSON	Becomes `ctx.event.data` on the run. Defaults to `{}` (never `null`) when omitted.
`eventName`	string	Overrides `ctx.event.name`. Defaults to the workflow’s own name. Label only - it never fires an event, causes fan-out, or wakes a `waitForEvent` step.
`dedupeId`	string	Drop a repeat of the same id (per workflow) within the dedupe window. Absent means no dedupe: a second call is a second run.
`runner`	string	Pin the run to a specific runner id. Anycast (any capable runner) when absent.
`tags`	object of string->string	Customer-defined key/value metadata attached to the run - same limits as event tags.

eventName, dedupeId, and runner are each bounded at 256 characters; a longer value or unparseable input returns 400.

Response

202 Accepted. The run is created and enqueued, not executed - a caller that wants the finished result polls GET /runs/{id} or uses runs.wait.

{
  "workflow": "nightly-report",
  "app": "support-app",
  "runId": "01HXYZ...",
  "eventName": "nightly-report"
}

Field	Meaning
`workflow` / `app`	The workflow the request addressed.
`runId`	The run started. Absent when a flow-control gate short-circuited the request - not an error.
`eventName`	The resolved `ctx.event.name` on the run: your `eventName` override, or the workflow’s own name.
`skipped` / `dropped` / `debounced` / `batched` / `deduped`	Flow-control outcomes - set (and `runId` absent) when the request was held back rather than run immediately. At most one is set. See flow control.

A workflow not registered in the project (or registered in another project) returns 404. No live runner capable of serving the workflow returns 502 - the run was never queued, so there’s nothing to poll.

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Flow control

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Trigger a run manually

Request body

Response

​Response

​Flow control

​Step manifest

​Trigger a run manually

​Request body

​Response

Response

Flow control

Step manifest

Trigger a run manually

Request body

Response