> ## Documentation Index
> Fetch the complete documentation index at: https://docs.checkfu.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Inspect an exact Managed Tool release

> Returns the immutable metadata, schemas, execution limits and connector digests of one exact tool release, plus its permanent revocation status.



## OpenAPI

````yaml /openapi.json get /v1/managed-tools/{managed_tool_id}/releases/{managed_tool_release_id}
openapi: 3.1.0
info:
  title: Checkfu API
  version: '2026-08-31'
  description: >-
    Authentication is declared per operation: API-key, runtime, or connector
    bearer; Automation signature; bootstrap poll token; or anonymous bootstrap
    creation and credential-free pairing redemption. Every general Checkfu REST
    request requires the dated `Checkfu-Version` header (one of: 2026-08-31);
    the three MCP JSON-RPC transports use `MCP-Protocol-Version`, A2A uses
    `A2A-Version`, and the provider OAuth callback carries neither Checkfu
    header. API keys resolve one Workspace without a request selector;
    authenticated responses identify it with `Checkfu-Workspace-Id`.
servers:
  - url: https://api.checkfu.com
security:
  - bearerAuth: []
tags:
  - name: organizations
  - name: sourceRepositories
  - name: tenants
  - name: workspaces
  - name: principals
  - name: principalGroups
  - name: principalAccessCredentials
  - name: apiKeys
  - name: agents
  - name: harnesses
  - name: harnessRuntime
  - name: permissionAssignments
  - name: actionPolicies
  - name: files
  - name: memoryStores
  - name: dreams
  - name: modelCredentials
  - name: modelRoutingProfiles
  - name: blueprintInstallations
  - name: toolSources
  - name: skills
  - name: skillSources
  - name: agentBlueprints
  - name: skillProposals
  - name: instructionProposals
  - name: catalog
  - name: managedTools
  - name: concepts
  - name: support
  - name: bootstrapRequests
  - name: connections
  - name: connectionVaults
  - name: connectionAssignments
  - name: connectedRuntimes
  - name: fileTrees
  - name: collaboration
  - name: automationGraphs
  - name: automations
  - name: actionApprovals
  - name: standingApprovals
  - name: workloadReviewPolicies
  - name: usage
  - name: models
  - name: outcomes
  - name: budgets
  - name: billing
  - name: sessions
  - name: audit
  - name: sessionExports
  - name: runs
  - name: runnerPools
  - name: transcripts
  - name: sessionWatches
  - name: sessionHandoffs
  - name: sessionCapsules
  - name: sessionTrajectories
  - name: webhookEndpoints
  - name: integrationGateway
  - name: workEnvironments
  - name: computers
  - name: computerScreens
  - name: computerBrowserObservations
  - name: computerBrowserActions
  - name: environments
  - name: computerHeadlessOperations
  - name: vaults
  - name: apiMcp
  - name: a2a
paths:
  /v1/managed-tools/{managed_tool_id}/releases/{managed_tool_release_id}:
    get:
      tags:
        - managedTools
      summary: Inspect an exact Managed Tool release
      description: >-
        Returns the immutable metadata, schemas, execution limits and connector
        digests of one exact tool release, plus its permanent revocation status.
        A release is not silently upgraded. Operator identities and revocation
        review details remain private. Discovery does not grant execution
        authority or establish an available price.


        Checkfu support posture: preview; hosted. No release evidence journey
        applies to this operation.
      operationId: managedTools.getManagedToolRelease
      parameters:
        - name: managed_tool_id
          in: path
          schema:
            $ref: '#/components/schemas/ManagedToolId'
          required: true
        - name: managed_tool_release_id
          in: path
          schema:
            $ref: '#/components/schemas/ManagedToolReleaseId'
          required: true
        - name: checkfu-version
          in: header
          schema:
            type: string
            enum:
              - '2026-08-31'
          required: true
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Objects_74'
          headers:
            checkfu-workspace-id:
              description: The Workspace resolved from the authenticated bearer credential.
              required: true
              schema:
                $ref: '#/components/schemas/WorkspaceId'
        '400':
          description: Typed Checkfu wire error
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    properties:
                      type:
                        type: string
                        enum:
                          - validation.malformed
                      message:
                        type: string
                      more:
                        type: string
                        enum:
                          - >-
                            https://docs.checkfu.com/reference/errors#validation-malformed
                        description: >-
                          Stable public documentation and remedy for this error
                          type.
                    required:
                      - type
                      - message
                      - more
                    additionalProperties: false
                additionalProperties: false
        '401':
          description: Typed Checkfu wire error
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - type
                      - message
                      - more
                    properties:
                      type:
                        type: string
                        enum:
                          - auth.invalid_key
                      message:
                        type: string
                      more:
                        type: string
                        enum:
                          - >-
                            https://docs.checkfu.com/reference/errors#auth-invalid-key
                        description: >-
                          Stable public documentation and remedy for this error
                          type.
                    additionalProperties: false
                additionalProperties: false
        '403':
          description: >-
            The organization, tenant, or workspace backing this key is
            administratively disabled. | Deployment governance or retention
            policy denied the request.
          content:
            application/json:
              schema:
                anyOf:
                  - type: object
                    required:
                      - error
                    properties:
                      error:
                        type: object
                        properties:
                          type:
                            type: string
                            enum:
                              - auth.disabled_tenancy
                          message:
                            type: string
                          more:
                            type: string
                            enum:
                              - >-
                                https://docs.checkfu.com/reference/errors#auth-disabled-tenancy
                            description: >-
                              Stable public documentation and remedy for this
                              error type.
                        required:
                          - type
                          - message
                          - more
                        additionalProperties: false
                    additionalProperties: false
                  - $ref: '#/components/schemas/PolicyDeniedError'
        '404':
          description: >-
            The requested resource does not exist in the resolved deployment
            boundary.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationNotFoundError'
        '429':
          description: Typed Checkfu wire error
          headers:
            retry-after:
              description: >-
                Delay in seconds for rate limits or deployment quotas with a
                known release or UTC reset boundary
              required: false
              schema:
                type: integer
                minimum: 1
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - type
                      - message
                      - more
                    properties:
                      type:
                        type: string
                        enum:
                          - budget.exceeded
                      message:
                        type: string
                      more:
                        type: string
                        enum:
                          - >-
                            https://docs.checkfu.com/reference/errors#budget-exceeded
                        description: >-
                          Stable public documentation and remedy for this error
                          type.
                    additionalProperties: false
                additionalProperties: false
        '500':
          description: >-
            An unexpected internal failure occurred; the message contains an
            opaque incident reference.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RuntimeInternalError'
      security:
        - bearerAuth: []
components:
  schemas:
    ManagedToolId:
      type: string
      pattern: ^mtl_[0-9a-f]{32}$
    ManagedToolReleaseId:
      type: string
      pattern: ^mtrel_[0-9a-f]{32}$
    Objects_74:
      type: object
      properties:
        tool:
          $ref: '#/components/schemas/ManagedTool'
        release:
          $ref: '#/components/schemas/ManagedToolRelease'
        revoked:
          type: boolean
      required:
        - tool
        - release
        - revoked
      additionalProperties: false
    WorkspaceId:
      type: string
      pattern: ^wrkspc_[0-9a-f]{32}$
    PolicyDeniedError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - policy.denied
            message:
              type: string
            more:
              type: string
              enum:
                - https://docs.checkfu.com/reference/errors#policy-denied
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: Deployment governance or retention policy denied the request.
    ValidationNotFoundError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - validation.not_found
            message:
              type: string
            more:
              type: string
              enum:
                - https://docs.checkfu.com/reference/errors#validation-not-found
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: >-
        The requested resource does not exist in the resolved deployment
        boundary.
    RuntimeInternalError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - runtime.internal
            message:
              type: string
            more:
              type: string
              enum:
                - https://docs.checkfu.com/reference/errors#runtime-internal
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: >-
        An unexpected internal failure occurred; the message contains an opaque
        incident reference.
    ManagedTool:
      type: object
      properties:
        id:
          $ref: '#/components/schemas/ManagedToolId'
        name:
          type: string
          pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$
        display_name:
          type: string
          allOf:
            - minLength: 1
            - maxLength: 255
        description:
          type: string
          allOf:
            - minLength: 1
            - maxLength: 4096
      required:
        - id
        - name
        - display_name
        - description
      additionalProperties: false
    ManagedToolRelease:
      type: object
      properties:
        id:
          $ref: '#/components/schemas/ManagedToolReleaseId'
        managed_tool_id:
          $ref: '#/components/schemas/ManagedToolId'
        release_type:
          type: string
          enum:
            - monid
        provider:
          type: string
          pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$
        endpoint:
          type: string
          allOf:
            - minLength: 1
            - maxLength: 512
        upstream_commit:
          type: string
          pattern: ^[0-9a-f]{40}$
        engine_version:
          type: string
          pattern: ^\d+\.\d+\.\d+$
        unit_sha256:
          $ref: '#/components/schemas/ManagedToolDigest'
        profile_sha256:
          $ref: '#/components/schemas/ManagedToolDigest'
        host_sha256:
          $ref: '#/components/schemas/ManagedToolDigest'
        input_schema:
          $ref: '#/components/schemas/ManagedToolSchemaDocument'
        output_schema:
          $ref: '#/components/schemas/ManagedToolSchemaDocument'
        execution_type:
          type: string
          enum:
            - synchronous
            - asynchronous
        maximum_response_bytes:
          type: integer
          allOf:
            - exclusiveMinimum: 0
            - maximum: 8388608
        maximum_duration_ms:
          type: integer
          allOf:
            - exclusiveMinimum: 0
            - maximum: 1800000
        published_at:
          $ref: '#/components/schemas/CurrentTimestamp'
      required:
        - id
        - managed_tool_id
        - release_type
        - provider
        - endpoint
        - upstream_commit
        - engine_version
        - unit_sha256
        - profile_sha256
        - host_sha256
        - input_schema
        - output_schema
        - execution_type
        - maximum_response_bytes
        - maximum_duration_ms
        - published_at
      additionalProperties: false
      description: >-
        Immutable, qualified execution bytes and product limits for one Managed
        Tool release.
    ManagedToolDigest:
      type: string
      allOf:
        - pattern: ^sha256:[0-9a-f]{64}$
          description: >-
            A SHA-256 digest binding an immutable Managed Tool artifact or
            invocation input.
    ManagedToolSchemaDocument:
      x-checkfu-json-budget:
        maximumBytes: 262144
        maximumDepth: 64
        maximumNodes: 32768
        maximumInspectionWork: 65536
      x-checkfu-unicode-scalar-values: true
      description: >-
        A schema generated from the pinned connector and the bounded Checkfu
        product profile.
    CurrentTimestamp:
      type: string
      allOf:
        - maxLength: 24
        - pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$
          description: A canonical UTC ISO-8601 timestamp with millisecond precision.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````

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