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GET
Get distinct dynamic variable keys from workflow leads (CSV columns)
Legacy endpoint - deprecated. Unversioned endpoints are scheduled for removal on July 31, 2026. Use the /v1 version for new integrations. This endpoint remains available for existing integrations until then.
Returns the list of dynamic variable keys derived from the column headers of the lead files uploaded to this workflow. These keys are what you can reference inside an agent’s prompt using the {{variable_name}} template syntax. For example, if a lead file contained the columns phone_number, name, city, and product, this endpoint returns the variable list ["name", "city", "product"]: phone_number is excluded because it is reserved as the dial target rather than a personalization variable.

When to use this

  • Prompt editors: populate an autocomplete or “available variables” panel so the prompt author can only reference variables that actually exist on this workflow’s leads.
  • Validation pipelines: verify a prompt template before publishing an agent change. Reject the deploy if it references a {{variable_name}} that does not appear in this list.
  • Workflow audits: confirm a newly uploaded lead file produces the columns the prompt expects, especially after editing the upload schema.
The keys returned reflect the union of all lead-file column headers ever uploaded to the workflow. If a column disappeared from later uploads, its key may still appear here; treat the list as “available”, not “always populated per lead”.

Path parameters

Errors

  • 404 Not Found is returned when the workflow does not exist.
  • 403 Forbidden is returned when the API key cannot read workflows on this workspace.

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

x-organization-id
string
required

RSA encrypted organization ID (base64 format)

Example:

"BASE64_ENCRYPTED_ORG_ID_HERE"

Path Parameters

workflowId
string
required

Response

200

List of variable keys