> ## 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.

# Bind a reviewed plan's required inputs

> Accepts one complete closed entry per required input at the protected sole-ingress boundary: a plaintext secret/credential value (sealed server-side into opaque handles and keyed digests, never echoed or stored in plaintext) or an authorized Connection id. Supersedes the prior unconsumed binding and rederives readiness. Requires the exact current plan row version and fingerprint (§7.8).

Checkfu support posture: alpha; hosted. Required evidence journey: blueprint-authority. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities.



## OpenAPI

````yaml /openapi.json post /v1/agent-blueprint-application-plans/{id}/input-bindings
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; or 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: computerProfiles
  - name: permissionAssignments
  - name: actionPolicies
  - name: files
  - name: memoryStores
  - name: dreams
  - name: modelCredentials
  - name: modelRoutingProfiles
  - name: blueprintInstallations
  - name: toolSources
  - name: skills
  - name: skillSources
  - name: agentSources
  - name: agentBlueprints
  - name: skillProposals
  - name: instructionProposals
  - name: catalog
  - name: concepts
  - name: agentBlueprintApplications
  - name: agentBlueprintApplicationPlans
  - name: agentBlueprintApplicationApprovals
  - name: agentBlueprintApplicationInputBindings
  - 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: 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: vaults
  - name: apiMcp
  - name: a2a
paths:
  /v1/agent-blueprint-application-plans/{id}/input-bindings:
    post:
      tags:
        - agentBlueprintApplicationPlans
      summary: Bind a reviewed plan's required inputs
      description: >-
        Accepts one complete closed entry per required input at the protected
        sole-ingress boundary: a plaintext secret/credential value (sealed
        server-side into opaque handles and keyed digests, never echoed or
        stored in plaintext) or an authorized Connection id. Supersedes the
        prior unconsumed binding and rederives readiness. Requires the exact
        current plan row version and fingerprint (§7.8).


        Checkfu support posture: alpha; hosted. Required evidence journey:
        blueprint-authority. Deployment-specific readiness and the latest proven
        release are available from GET /v1/support/capabilities.
      operationId: agentBlueprintApplicationPlans.bindInputs
      parameters:
        - name: id
          in: path
          schema:
            $ref: '#/components/schemas/BlueprintApplyPlanId'
          required: true
        - name: checkfu-version
          in: header
          schema:
            type: string
            enum:
              - '2026-08-31'
          required: true
        - name: idempotency-key
          in: header
          schema:
            type: string
            allOf:
              - maxLength: 255
              - minLength: 1
          required: true
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BindBlueprintPlanInputsRequest'
        required: true
      responses:
        '201':
          description: Opaque bounded state of the plan's protected input binding.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BlueprintApplyInputBindingProjection_1'
          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:
                $ref: '#/components/schemas/ValidationMalformedError'
        '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'
        '409':
          description: >-
            The request conflicts with the resource's current state. | An
            idempotent mutation conflicts with a completed or in-progress
            request for the same key.
          content:
            application/json:
              schema:
                anyOf:
                  - $ref: '#/components/schemas/ValidationConflictError'
                  - $ref: '#/components/schemas/IdempotencyConflictError'
        '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:
                $ref: '#/components/schemas/RuntimeInternalError'
      security:
        - bearerAuth: []
components:
  schemas:
    BlueprintApplyPlanId:
      type: string
      allOf:
        - pattern: ^bplan_[0-9a-f]{32}$
    BindBlueprintPlanInputsRequest:
      type: object
      properties:
        plan_fingerprint:
          type: string
          allOf:
            - pattern: ^sha256:[0-9a-f]{64}$
        resource_version:
          type: integer
          allOf:
            - exclusiveMinimum: 0
        entries:
          type: array
          items:
            anyOf:
              - type: object
                properties:
                  kind:
                    type: string
                    enum:
                      - value
                  input_id:
                    type: integer
                    allOf:
                      - exclusiveMinimum: 0
                  value:
                    type: string
                    allOf:
                      - minLength: 1
                required:
                  - kind
                  - input_id
                  - value
                additionalProperties: false
              - type: object
                properties:
                  kind:
                    type: string
                    enum:
                      - connection
                  input_id:
                    type: integer
                    allOf:
                      - exclusiveMinimum: 0
                  connection_id:
                    $ref: '#/components/schemas/ConnectionId'
                required:
                  - kind
                  - input_id
                  - connection_id
                additionalProperties: false
          allOf:
            - minItems: 1
            - maxItems: 256
      required:
        - plan_fingerprint
        - resource_version
        - entries
      additionalProperties: false
      description: >-
        Protected sole-ingress binding of one complete required-input set for a
        reviewed plan.
    BlueprintApplyInputBindingProjection_1:
      anyOf:
        - $ref: '#/components/schemas/Objects_96'
        - $ref: '#/components/schemas/Objects_97'
      description: Opaque bounded state of the plan's protected input binding.
    WorkspaceId:
      type: string
      allOf:
        - pattern: ^wrkspc_[0-9a-f]{32}$
    ValidationMalformedError:
      type: object
      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
      required:
        - error
      additionalProperties: false
      description: >-
        The request could not be decoded or violated a declared input
        constraint.
    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.
    ValidationConflictError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - validation.conflict
            message:
              type: string
            more:
              type: string
              enum:
                - https://docs.checkfu.com/reference/errors#validation-conflict
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: The request conflicts with the resource's current state.
    IdempotencyConflictError:
      anyOf:
        - $ref: '#/components/schemas/ValidationIdempotencyConflictError'
        - $ref: '#/components/schemas/ValidationIdempotencyInProgressError'
      description: >-
        An idempotent mutation conflicts with a completed or in-progress request
        for the same key.
    RuntimeInternalError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - runtime.internal
            message:
              type: string
            more:
              type: string
              enum:
                - https://docs.checkfu.com/reference/errors#runtime-internal
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: >-
        An unexpected internal failure occurred; the message contains an opaque
        incident reference.
    ConnectionId:
      type: string
      allOf:
        - pattern: ^conn_[0-9a-f]{32}$
    Objects_96:
      type: object
      properties:
        state:
          type: string
          enum:
            - not_required
            - required
        active_binding:
          type: 'null'
        binding_count:
          type: integer
          allOf:
            - minimum: 0
        revocation_count:
          type: integer
          allOf:
            - minimum: 0
      required:
        - state
        - active_binding
        - binding_count
        - revocation_count
      additionalProperties: false
    Objects_97:
      type: object
      properties:
        state:
          type: string
          enum:
            - bound
        active_binding:
          type: object
          properties:
            id:
              $ref: '#/components/schemas/BlueprintPlanInputBindingId'
            bound_input_count:
              type: integer
              allOf:
                - exclusiveMinimum: 0
            expires_at:
              $ref: '#/components/schemas/CurrentTimestamp'
          required:
            - id
            - bound_input_count
            - expires_at
          additionalProperties: false
        binding_count:
          type: integer
          allOf:
            - exclusiveMinimum: 0
        revocation_count:
          type: integer
          allOf:
            - minimum: 0
      required:
        - state
        - active_binding
        - binding_count
        - revocation_count
      additionalProperties: false
    ValidationIdempotencyConflictError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - validation.idempotency_conflict
            message:
              type: string
            more:
              type: string
              enum:
                - >-
                  https://docs.checkfu.com/reference/errors#validation-idempotency-conflict
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: The Idempotency-Key is already bound to a different request.
    ValidationIdempotencyInProgressError:
      type: object
      properties:
        error:
          type: object
          properties:
            type:
              type: string
              enum:
                - validation.idempotency_in_progress
            message:
              type: string
            more:
              type: string
              enum:
                - >-
                  https://docs.checkfu.com/reference/errors#validation-idempotency-in-progress
              description: Stable public documentation and remedy for this error type.
          required:
            - type
            - message
            - more
          additionalProperties: false
      required:
        - error
      additionalProperties: false
      description: >-
        An identical idempotent request is still in progress and may be retried
        later.
    BlueprintPlanInputBindingId:
      type: string
      allOf:
        - pattern: ^bbind_[0-9a-f]{32}$
    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

````