> ## Documentation Index > Fetch the complete documentation index at: https://docs.labelbox.com/llms.txt > Use this file to discover all available pages before exploring further. # Get one immutable agent version > Returns one immutable agent version by id. The version must belong to the agent in the path; a mismatch is a 404 rather than a cross-agent read. ## OpenAPI ````yaml /managed-agents/openapi.yaml get /managed-agents/v1/agents/{agent_id}/versions/{agent_version_id} openapi: 3.1.0 info: title: Managed Agents API version: 0.13.0 description: >- The Recursion Managed Agents REST API. Authenticate with a Recursion API key as a bearer token. An organization-scoped key acts in its own organization and needs nothing else; a tenant-scoped key must also send `x-organization-id` with an organization id or `default`. Field names follow each operation's published schema. servers: - url: https://api.recursion.labelbox.com security: - bearerAuth: [] paths: /managed-agents/v1/agents/{agent_id}/versions/{agent_version_id}: get: tags: - Agents summary: Get one immutable agent version description: >- Returns one immutable agent version by id. The version must belong to the agent in the path; a mismatch is a 404 rather than a cross-agent read. operationId: managedAgentsGetAgentVersion parameters: - description: Agent id (UUID) the version belongs to. in: path name: agent_id required: true schema: description: Agent id (UUID) the version belongs to. format: uuid type: string - description: >- Immutable agent version id (UUID), as listed by listAgentVersions or reported as an agent's latest_agent_version_id. in: path name: agent_version_id required: true schema: description: >- Immutable agent version id (UUID), as listed by listAgentVersions or reported as an agent's latest_agent_version_id. format: uuid type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsAgentVersion' description: >- An immutable snapshot of an agent's configuration, minted on every update. Sessions reference a version rather than the agent, so a running session's behaviour cannot change under it. '400': description: The request was rejected by schema or semantic validation. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiError' '401': description: The caller is unauthenticated. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiError' '403': description: The caller lacks a required permission or capability. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorForbidden' '404': description: No such resource is reachable for this caller. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiError' '429': headers: Retry-After: description: Seconds the caller should wait before retrying. schema: type: string style: simple description: A rate limit is exhausted. Honor `Retry-After`. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiError' '500': description: An unexpected server-side failure. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiError' '502': description: The service returned an invalid response. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorBadGateway' '503': headers: Retry-After: description: Seconds the caller should wait before retrying. schema: type: string style: simple description: A dependency is unavailable. Retryable. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiError' '504': headers: Retry-After: description: When to retry, as delay seconds or an HTTP date. schema: type: string description: The service did not respond before the timeout. Retryable. content: application/json: schema: $ref: '#/components/schemas/ManagedAgentsApiErrorGatewayTimeout' components: schemas: ManagedAgentsAgentVersion: description: >- An immutable snapshot of an agent's configuration, minted on every update. Sessions reference a version rather than the agent, so a running session's behaviour cannot change under it. properties: agent_id: description: Agent this version belongs to (UUID). type: string agent_version_id: description: >- Identifier for this agent version (UUID). Server-assigned. Pass it when starting a session that must run a specific version. type: string built_in_integrations: description: >- Built-in integrations sessions started from this version may use, each naming an organization connection an admin added. Snapshotted with the version. items: $ref: '#/components/schemas/ManagedAgentsBuiltInIntegration' type: array created_at: description: RFC 3339 timestamp of when this record was created. Server-assigned. format: date-time type: string created_by: description: >- User who made the edit that produced this version, for audit. Empty when the version was created by an automated caller. type: string default_credential_refs: description: Narrows this version's default vaults to individual credentials. items: $ref: '#/components/schemas/ManagedAgentsVaultCredentialRef' type: - array - 'null' default_rubric: description: >- Markdown rubric that sessions started from this version are graded against when their create request omits an outcome. A session that supplies its own outcome ignores this entirely. type: string default_vault_ids: description: >- Vaults whose credentials are copied into a new session started from this version when the create request omits vault_ids. items: type: string type: - array - 'null' description: description: The agent's free-text note as it stood at this version. type: string disabled_integration_mcp_providers: description: >- Native integration providers whose MCP tools sessions started from this version do not receive. The grant and its sandbox credentials are unaffected. items: type: string type: - array - 'null' max_concurrent_sessions: description: >- Maximum concurrent root sessions configured on the agent when this version was minted. Unset means unlimited. Live admission uses the agent head's current value, not this snapshot. maximum: 10000 minimum: 1 type: integer mcp_servers: description: >- Remote MCP servers attached at this version. Each entry is an object with name and url (http/https); further keys pass to the runtime unchanged. Credentials come from the session's granted vaults. items: additionalProperties: {} type: object type: - array - 'null' metadata: additionalProperties: {} description: >- Free-form caller-supplied key/value labels. Stored verbatim and never interpreted by the service. type: object model: description: >- Model this version runs on, in the same form as an agent's model: a models-catalog id such as anthropic/claude-sonnet-4-5, returned in its stored form with a provider prefix added. type: string model_config: $ref: '#/components/schemas/ManagedAgentsInferenceConfig' description: >- Default inference settings this version applies to every turn unless a session overrides them. multiagent: additionalProperties: {} description: >- Multi-agent orchestration settings at this version, such as subagent definitions and delegation limits. type: object name: description: The agent's human-readable label as it stood at this version. type: string nativeIntegrations: description: >- Native connections this agent may use, with provider-enforced permission and resource restrictions. Omit or send [] for none. Stored in full on each agent version; secrets remain on the connection. items: $ref: '#/components/schemas/ManagedAgentsNativeIntegration' maxItems: 25 type: array organization_id: description: >- Organization that owns this record. Resolved from the API key; never accepted from the caller. type: string skills: description: >- Skill packages loaded into the runtime at this version, each an entry with the skill reference and its metadata. items: additionalProperties: {} type: object type: - array - 'null' system: description: System prompt this version prepends to every conversation. type: string toolsets: description: >- The bare evaluation marker, when this is an evaluator version. Historical stored versions may contain ignored declarations, omitted from current API responses. Built-in sandbox tools need no marker. items: additionalProperties: false properties: type: description: The evaluation marker is the only supported toolset type. enum: - evaluation type: string required: - type type: object maxItems: 1 type: - array - 'null' version_number: description: >- Monotonically increasing version counter within the agent, starting at 1. Server-assigned. format: int64 type: integer web_search_enabled: default: true description: >- Whether sessions created from this version may use the native web_search tool. Omitted on legacy versions and interpreted as enabled. type: boolean required: - organization_id - agent_id - agent_version_id - version_number - name - system - toolsets - mcp_servers - default_vault_ids - default_credential_refs - disabled_integration_mcp_providers - skills - model_config - created_at type: object example: agent_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d agent_version_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d built_in_integrations: - connection_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d tools: - example created_at: '2026-02-18T09:30:00.000Z' created_by: example default_credential_refs: - credential_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d vault_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d default_rubric: example default_vault_ids: - example description: example disabled_integration_mcp_providers: - example max_concurrent_sessions: 1 mcp_servers: - key: example metadata: key: example model: example model_config: max_tokens: 1 provider_params: key: example reasoning_effort: example temperature: 1.5 top_p: 1.5 multiagent: key: example name: example-name nativeIntegrations: - connectionId: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d permission: example resources: - example organization_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d skills: - key: example system: example toolsets: - type: evaluation version_number: 1 web_search_enabled: true ManagedAgentsApiError: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - analytics - analytics_not_ready - artifact_fetch_unavailable - artifact_generation_mismatch - artifact_hash_mismatch - artifact_invalid_events - artifact_invalid_json - artifact_not_allowlisted - artifact_size_mismatch - atomic_ingest_timeout - auth_unavailable - automation_event_source_invalid - automation_memory_unavailable - automation_reference_invalid - automation_runs_unconfigured - automations_unconfigured - bad_gateway - built_in_catalog_unavailable - built_in_integrations_unconfigured - compute_offerings_unavailable - conflict - content_store_request_canceled - content_store_unavailable - content_store_upload_timeout - credential_encryption_unconfigured - delegate_preparation_failed - entity_family_not_permitted - environment_not_verified - evaluation_cancellation_pending - evaluation_deletion_pending - event_admission_unavailable - event_ingress_unavailable - event_source_verification_credential_invalid - event_sources_unconfigured - execution_unconfigured - file_quota_exceeded - file_storage_unconfigured - forbidden - gateway_timeout - gestalt_unconfigured - github_rate_limited - github_unavailable - handoff_access_invalid - handoff_access_unavailable - handoff_access_unsupported - handoff_capture_unavailable - handoff_requires_retest - handoff_revoke_unavailable - handoff_signal_unavailable - idempotency_conflict - idempotency_in_progress - idempotency_unavailable - ingest_policy_changed - ingest_policy_not_found - ingest_policy_revoked - integrations_unconfigured - internal_error - invalid_json - invalid_pull_request_review_result - invalid_request - invalid_scope - invariant_violation - live_fleet_unconfigured - managed_agents_unavailable - missing_dependency - model_gateway_metadata_missing - model_gateway_unconfigured - model_gateway_unreachable - mutation_transaction_budget_exceeded - not_found - page_token_expired - payload_too_large - persistence_busy - precondition_failed - precondition_required - provider_registration_unsupported - provider_selection_unsupported - rate_limit_exceeded - rate_limited - repository_automation_unconfigured - request_too_large - reserved_source_type - revision_conflict - run_log_store_unavailable - runner_image_resolution_failed - sandbox_provider_disabled - service_unavailable - session_analyst_busy - session_analyst_model_unavailable - session_analyst_unconfigured - session_start_admission_unavailable - session_start_not_admitted - setup_fallback_environment_unsafe - setup_run_finished - setup_run_in_progress - setup_run_limit - setup_run_not_started - setup_runs_unavailable - skill_storage_unconfigured - slack_channels_rejected - slack_channels_unavailable - slack_channels_unconfigured - slack_connection_malformed - slack_event_intake_unavailable - slack_installation_mismatch - slack_missing_scope - slack_rate_limited - slack_reapproval_required - source_ownership_mismatch - source_revision_conflict - spanner_unavailable - streaming_unsupported - submission_transaction_budget_exceeded - task_version_number_conflict - team_board_unconfigured - too_many_streams - unauthorized - unsupported_media_type - vault_creation_retired - version_content_conflict - webhook_delivery_too_large - workspace_boundary_denied message: type: string minLength: 1 description: Human-readable error message. details: description: Optional structured error details. type: object propertyNames: type: string additionalProperties: {} required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorForbidden: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - forbidden message: type: string minLength: 1 description: Human-readable error message. details: description: Optional structured error details. type: object propertyNames: type: string additionalProperties: {} required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorBadGateway: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - bad_gateway message: type: string minLength: 1 description: Human-readable error message. details: description: Optional structured error details. type: object propertyNames: type: string additionalProperties: {} required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsApiErrorGatewayTimeout: type: object properties: code: type: string minLength: 1 description: Stable machine-readable error code. enum: - gateway_timeout message: type: string minLength: 1 description: Human-readable error message. details: description: Optional structured error details. type: object propertyNames: type: string additionalProperties: {} required: - code - message additionalProperties: false description: Standard flat error response. ManagedAgentsBuiltInIntegration: description: >- One built-in integration an agent may use, named by its organization connection. The connection carries the app and the tools its agents may call; the agent inherits both. properties: connection_id: description: >- Organization integration connection (UUID) the agent may use. Must belong to the caller's organization, be a built-in integration connection, and be active. type: string tools: description: >- Reserved for per-agent narrowing below the connection's admin allow-list. Must be omitted or empty today; the agent inherits the connection's full allow-list. items: type: string type: array required: - connection_id type: object example: connection_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d tools: - example ManagedAgentsVaultCredentialRef: description: >- A pointer to one credential inside one vault. Used to grant a session specific credentials rather than every credential in a vault. properties: credential_id: description: Credential to select inside vault_id. type: string vault_id: description: >- Vault holding the credential. Required, because credential ids are unique only within a vault. type: string required: - vault_id - credential_id type: object example: credential_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d vault_id: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d ManagedAgentsInferenceConfig: description: >- Sampling and generation settings for a model call, mirroring the provider's own request parameters. Set it on an agent or a session to govern every turn, and read it back on a model event to see what the call actually used. properties: max_tokens: description: >- Upper bound on tokens the model may generate for one assistant turn (the provider's max_tokens). Omit or 0 to use the model reference's default. format: int64 type: integer provider_params: additionalProperties: {} description: >- Extra provider request parameters merged into the inference call for options this schema does not model. Keys are provider-specific and are passed through unvalidated. type: object reasoning_effort: description: >- Provider-native reasoning depth value. For a model from the models catalog, use one of its supportedReasoningEfforts; omit it to follow the provider's current default. type: string temperature: description: >- Sampling temperature passed through to the provider, typically 0.0-2.0. Lower values are more deterministic. Omit to use the provider default. type: number top_p: description: >- Nucleus-sampling probability mass (0.0-1.0) passed through to the provider. Prefer setting either this or temperature, not both. Omit to use the provider default. type: number type: object example: max_tokens: 1 provider_params: key: example reasoning_effort: example temperature: 1.5 top_p: 1.5 ManagedAgentsNativeIntegration: description: >- A native connection and its agent-owned runtime permission and resource policy. properties: connectionId: description: Active native connection in this organization. format: uuid type: string permission: description: >- Provider permission preset, bounded by the connection's authorization. type: string resources: description: >- Optional resource subset. Omit to inherit all resources available through the connection. An explicit empty list is rejected. items: type: string maxItems: 500 type: array required: - connectionId - permission type: object example: connectionId: 9f8b1c2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d permission: example resources: - example securitySchemes: bearerAuth: type: http scheme: bearer description: A Recursion API key, created in the console under API keys. ````