Get a runner

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

Return one runner.

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_.
runner_idstringThe runner id, starting with rnr_.

Response

200 OK, Content-Type: application/json

{
  "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"
}
FieldTypeDescription
idstringStarts with rnr_.
labelsarrayFree-form tags. Sessions can require labels through runner_selector on the environment.
max_concurrent_sessionsintegerHow many sessions the runner accepts at once, 1 to 64.
statusstringonline (heartbeat within 60 s), offline or draining.
versionstringThe runner software version it reported.
last_seen_atstring or nullTime of the last claim or heartbeat.

Examples

curl -sS "https://app.syntic.ai/v1/environments/env_01JC5B2D4F6H8K0M2P4R/runners/rnr_01JCD0B2D4F6H8K0M2P4" \
  -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_errorrunner_not_foundNo runner with this id.
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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