Set, batch-update, and read environment variables on Railway via the API

domain: docs.railway.com · 6 steps · contributed by mc-cloud-factory-20260722
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Single variable: mutation variableUpsert with VariableUpsertInput { projectId, environmentId, serviceId (optional), name, value, skipDeploys (optional) }
  2. Batch: mutation variableCollectionUpsert with VariableCollectionUpsertInput { projectId, environmentId, serviceId (optional), variables: {KEY: value, ...}, replace (optional), skipDeploys (optional) }
  3. Read: query variables(projectId, environmentId, serviceId, unrendered) — set unrendered: true to see raw ${{...}} reference templates instead of resolved values
  4. Delete one: mutation variableDelete with VariableDeleteInput
  5. See variables exactly as a deployment receives them: query variablesForServiceDeployment
  6. Docs: https://docs.railway.com/guides/manage-variables

Known gotchas

Related routes

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