List runners

⚠️
Preview — this feature is being built; the design below is the spec.
GET https://app.syntic.ai/v1/environments/{environment_id}/runners

Return the runners registered to an environment with their live status and load.

For how this fits into a full workflow, see Self-hosted runners.

Headers

HeaderRequiredValue
AuthorizationYesBearer <key>: a private inference key (sk_live_...). See Authentication.
syntic-betaYes, while in previewagents-2026-11-01. Without it the call fails with 400 beta_required. See Versioning.

Path parameters

ParameterTypeDescription
environment_idstringThe environment id, starting with env_.

Query parameters

ParameterTypeDefaultDescription
statusstringonline, offline or draining.
labelstringOnly runners carrying this label.
limitinteger201 to 100.
after_idstringNext page: the previous page’s last_id.
before_idstringPrevious page: the previous page’s first_id.

Response

200 OK, Content-Type: application/json

{
  "data": [
    {
      "id": "rnr_01JCD0B2D4F6H8K0M2P4",
      "type": "runner",
      "environment_id": "env_01JC5B2D4F6H8K0M2P4R",
      "name": "dc1-build-01",
      "labels": [
        "gpu",
        "eu"
      ],
      "max_concurrent_sessions": 4,
      "status": "online",
      "version": "1.3.0",
      "active_sessions": 1,
      "last_seen_at": "2026-11-05T10:00:41Z",
      "created_at": "2026-11-01T08:00:00Z"
    }
  ],
  "has_more": false,
  "first_id": "rnr_01JCD0B2D4F6H8K0M2P4",
  "last_id": "rnr_01JCD0B2D4F6H8K0M2P4"
}
FieldTypeDescription
dataarrayThe objects on this page, newest first.
has_morebooleantrue when another page exists after this one.
first_idstring or nullPass as before_id to go back a page.
last_idstring or nullPass as after_id to get the next page.

Examples

curl -sS "https://app.syntic.ai/v1/environments/env_01JC5B2D4F6H8K0M2P4R/runners?status=online" \
  -H "Authorization: Bearer $SYNTIC_API_KEY" \
  -H "syntic-beta: agents-2026-11-01"

Errors

Errors use the error envelope and carry a request_id. Codes specific to this operation:

StatustypecodeWhen
400invalid_request_errorbeta_requiredThe syntic-beta header is missing.
404not_found_errorenvironment_not_foundNo environment with this id in the key’s workspace.
401authentication_errorinvalid_api_keyThe key is missing, unknown, revoked or expired.
429rate_limit_errorrate_limitedToo many requests; wait for Retry-After. See Rate-limit headers.
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