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

# Get Merged Function Description

> Fetch the merged description generated from all custom functions on an agent version.

<Warning>
  **Legacy endpoint - deprecated.** Unversioned endpoints are scheduled for removal on **July 31, 2026**. A public v1 replacement is not currently listed in the v1 reference. This endpoint remains available for existing integrations until then.
</Warning>

Returns the merged function description for all custom functions on an agent version. Use it to preview the combined tool instructions DialNexa can provide to the agent runtime.

## Path parameters

| Parameter       | Description           |
| --------------- | --------------------- |
| `agentId`       | Agent ID.             |
| `versionNumber` | Agent version number. |

## Related endpoints

* [List Agent Functions](/docs/api-reference/agent-functions/list): inspect the source functions.
* [Custom Functions](/docs/agent-settings/custom-functions): configure function descriptions.


## OpenAPI

````yaml GET /agent-functions/{agentId}/{versionNumber}/merged-description
openapi: 3.0.0
info:
  title: DialNexa API
  description: >-
    Public REST API for the DialNexa voice AI platform. Versioned endpoints are
    under /v1; unversioned endpoints are legacy and deprecated.
  version: 1.0.0
servers:
  - url: https://api.dialnexa.com
    description: DialNexa production API
security:
  - bearer: []
tags:
  - name: API Keys
  - name: Agent Functions
  - name: Agents V1
  - name: Agents2
  - name: Batch Calls
  - name: Batch Calls V1
  - name: Call Logs
  - name: Calls
  - name: Calls V1
  - name: Campaign Leads
  - name: Campaigns
  - name: External Webhooks
  - name: Knowledge Base
  - name: Knowledge Base V1
  - name: LLMs
  - name: LLMs V1
  - name: Languages
  - name: Languages V1
  - name: Organization Phone Numbers
  - name: Organization Phone Numbers V1
  - name: Phone Number Pricing
  - name: Phone Number Pricing V1
  - name: Transcribers
  - name: Transcribers V1
  - name: User Webhooks
  - name: User Webhooks V1
  - name: V1
  - name: Voices
  - name: Voices V1
  - name: Webcall
  - name: Workflow Leads
  - name: Workflow Leads V1
  - name: Workflows
  - name: Workflows V1
paths:
  /agent-functions/{agentId}/{versionNumber}/merged-description:
    get:
      tags:
        - Agent Functions
      summary: Get the merged description of all agent functions
      description: >-
        **Legacy endpoint - deprecated, scheduled for removal on July 31,
        2026.** Use the `/v1` version for new integrations. 
      operationId: AgentFunctionsController_getMergedDescriptionOfAgentFunctions
      parameters:
        - name: agentId
          required: true
          in: path
          description: ID of the agent
          schema:
            type: string
        - name: versionNumber
          required: true
          in: path
          description: Version number of the agent
          schema:
            type: string
        - name: x-organization-id
          in: header
          description: RSA encrypted organization ID (base64 format)
          required: true
          schema:
            type: string
            example: BASE64_ENCRYPTED_ORG_ID_HERE
      responses:
        '200':
          description: Merged description returned successfully.
        '401':
          description: Unauthorized.
        '403':
          description: Agent does not belong to your organization.
      deprecated: true
components:
  securitySchemes:
    bearer:
      scheme: bearer
      bearerFormat: JWT
      type: http

````