> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://respan.ai/docs/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://respan.ai/docs/_mcp/server.

# Get a prompt version

GET https://api.respan.ai/api/prompts/{prompt_id}/versions/{version}/

Reference: https://respan.ai/docs/apis/prompts/get-prompt-version

## Authentication

- `Authorization` header (bearer token, required) — Use your Respan API key for Respan API authentication. Enter only the Respan API key value; clients send Authorization: Bearer \<RESPAN\_API\_KEY>. For /api/responses, provider credentials such as Perplexity, OpenAI, or Azure OpenAI go in Settings -> Providers or respan\_params.credential\_override in the request body, not in this authentication field.
- `Authorization` header (bearer token, required) — Use a dashboard JWT only for dashboard-authenticated endpoints. Respan API-key endpoints use the respanApiKey auth field instead.

## Request

### Path parameters

- `prompt_id` (string, required) — The unique prompt identifier.
- `version` (integer, required) — The prompt version number.

## Response

### 200

Prompt version details.

- `id` (string, optional)
- `prompt_version_id` (string, optional)
- `version` (integer, optional)
- `description` (string, optional, nullable)
- `messages` (list of map from string to any, optional)
- `thinking` (ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaThinking, optional, nullable)
- `model` (string, optional)
- `stream` (boolean, optional)
- `temperature` (double, optional, nullable)
- `max_tokens` (integer, optional, nullable)
- `top_p` (double, optional, nullable)
- `frequency_penalty` (double, optional, nullable)
- `presence_penalty` (double, optional, nullable)
- `reasoning_effort` (string, optional, nullable)
- `verbosity` (string, optional, nullable)
- `seed` (integer, optional, nullable)
- `variables` (ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaVariables, optional)
- `fallback_models` (list of string, optional, nullable)
- `load_balance_models` (list of ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaLoadBalanceModelsItems, optional, nullable)
- `tools` (list of ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaToolsItems, optional, nullable)
- `tool_choice` (ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaToolChoice, optional)
- `response_format` (ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaResponseFormat, optional, nullable)
- `json_schema` (ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaJsonSchema, optional, nullable)
- `is_enforcing_response_format` (boolean, optional)
- `readonly` (boolean, optional)
- `edited_by` (ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaEditedBy, optional)
- `created_at` (datetime, optional)
- `updated_at` (datetime, optional)

## Errors

### 403 Forbidden Error

The API key is missing, invalid or expired.

- `detail` (string, required)

### 404 Not Found Error

Version not found

- `detail` (string, required)

## Types

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaThinking

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaVariables

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaLoadBalanceModelsItems

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaToolsItems

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaToolChoice

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaResponseFormat

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaJsonSchema

### ApiPromptsPromptIdVersionsVersionGetResponsesContentApplicationJsonSchemaEditedBy

- `id` (integer, optional)
- `email` (string, optional)
- `first_name` (string, optional)
- `last_name` (string, optional)

## Examples

**Response**

```json
{
  "id": "pv_abc123",
  "prompt_version_id": "pv_abc123",
  "version": 3,
  "description": "Added context variable",
  "messages": [
    {
      "role": "system",
      "content": "You are a helpful assistant. Context: {{context}}"
    },
    {
      "role": "user",
      "content": "{{user_query}}"
    }
  ],
  "thinking": null,
  "model": "gpt-4o",
  "stream": false,
  "temperature": 0.7,
  "max_tokens": 2048,
  "top_p": 1,
  "frequency_penalty": 0,
  "presence_penalty": 0,
  "reasoning_effort": null,
  "verbosity": null,
  "seed": null,
  "variables": {
    "context": "",
    "user_query": ""
  },
  "fallback_models": [
    "gpt-4o-mini"
  ],
  "load_balance_models": [
    {
      "model": "gpt-4o",
      "weight": 0.8
    },
    {
      "model": "gpt-4o-mini",
      "weight": 0.2
    }
  ],
  "tools": [
    {
      "type": "function",
      "function": {
        "name": "search_knowledge_base"
      }
    }
  ],
  "tool_choice": "auto",
  "response_format": null,
  "json_schema": null,
  "is_enforcing_response_format": false,
  "readonly": false,
  "edited_by": {
    "id": 123,
    "email": "user@example.com",
    "first_name": "John",
    "last_name": "Doe"
  },
  "created_at": "2026-01-20T10:30:00Z",
  "updated_at": "2026-01-20T10:30:00Z",
  "is_deployed": false
}
```

**SDK Code**

```python
import requests

url = "https://api.respan.ai/api/prompts/prompt_id/versions/3/"

headers = {"Authorization": "Bearer <respanApiKey>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.respan.ai/api/prompts/prompt_id/versions/3/';
const options = {method: 'GET', headers: {Authorization: 'Bearer <respanApiKey>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.respan.ai/api/prompts/prompt_id/versions/3/"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <respanApiKey>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.respan.ai/api/prompts/prompt_id/versions/3/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <respanApiKey>'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.respan.ai/api/prompts/prompt_id/versions/3/")
  .header("Authorization", "Bearer <respanApiKey>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.respan.ai/api/prompts/prompt_id/versions/3/', [
  'headers' => [
    'Authorization' => 'Bearer <respanApiKey>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.respan.ai/api/prompts/prompt_id/versions/3/");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <respanApiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Bearer <respanApiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.respan.ai/api/prompts/prompt_id/versions/3/")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```