Generate Content

Generates a model response given an input GenerateContentRequest.

POST /v1beta/models/{model}:generateContent

Generate Content

cURL

curl --request POST \
  --url https://www.anyfast.ai/v1beta/models/{model}:generateContent \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contents": [
    {
      "role": "user",
      "parts": [
        {
          "text": "Hello, Gemini!"
        }
      ]
    }
  ],
  "systemInstruction": {
    "parts": [
      {
        "text": "<string>"
      }
    ]
  },
  "generationConfig": {
    "temperature": 1,
    "topP": 0.5,
    "topK": 123,
    "maxOutputTokens": 123,
    "stopSequences": [
      "<string>"
    ],
    "responseSchema": {}
  },
  "tools": [
    {
      "functionDeclarations": [
        {
          "name": "<string>",
          "description": "<string>",
          "parameters": {}
        }
      ]
    }
  ],
  "toolConfig": {
    "functionCallingConfig": {
      "allowedFunctionNames": [
        "<string>"
      ]
    }
  },
  "safetySettings": [
    {}
  ]
}
'

import requests

url = "https://www.anyfast.ai/v1beta/models/{model}:generateContent"

payload = {
    "contents": [
        {
            "role": "user",
            "parts": [{ "text": "Hello, Gemini!" }]
        }
    ],
    "systemInstruction": { "parts": [{ "text": "<string>" }] },
    "generationConfig": {
        "temperature": 1,
        "topP": 0.5,
        "topK": 123,
        "maxOutputTokens": 123,
        "stopSequences": ["<string>"],
        "responseSchema": {}
    },
    "tools": [{ "functionDeclarations": [
                {
                    "name": "<string>",
                    "description": "<string>",
                    "parameters": {}
                }
            ] }],
    "toolConfig": { "functionCallingConfig": { "allowedFunctionNames": ["<string>"] } },
    "safetySettings": [{}]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    contents: [{role: 'user', parts: [{text: 'Hello, Gemini!'}]}],
    systemInstruction: {parts: [{text: '<string>'}]},
    generationConfig: {
      temperature: 1,
      topP: 0.5,
      topK: 123,
      maxOutputTokens: 123,
      stopSequences: ['<string>'],
      responseSchema: {}
    },
    tools: [
      {
        functionDeclarations: [{name: '<string>', description: '<string>', parameters: {}}]
      }
    ],
    toolConfig: {functionCallingConfig: {allowedFunctionNames: ['<string>']}},
    safetySettings: [{}]
  })
};

fetch('https://www.anyfast.ai/v1beta/models/{model}:generateContent', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://www.anyfast.ai/v1beta/models/{model}:generateContent",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'contents' => [
        [
                'role' => 'user',
                'parts' => [
                                [
                                                                'text' => 'Hello, Gemini!'
                                ]
                ]
        ]
    ],
    'systemInstruction' => [
        'parts' => [
                [
                                'text' => '<string>'
                ]
        ]
    ],
    'generationConfig' => [
        'temperature' => 1,
        'topP' => 0.5,
        'topK' => 123,
        'maxOutputTokens' => 123,
        'stopSequences' => [
                '<string>'
        ],
        'responseSchema' => [
                
        ]
    ],
    'tools' => [
        [
                'functionDeclarations' => [
                                [
                                                                'name' => '<string>',
                                                                'description' => '<string>',
                                                                'parameters' => [
                                                                                                                                
                                                                ]
                                ]
                ]
        ]
    ],
    'toolConfig' => [
        'functionCallingConfig' => [
                'allowedFunctionNames' => [
                                '<string>'
                ]
        ]
    ],
    'safetySettings' => [
        [
                
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://www.anyfast.ai/v1beta/models/{model}:generateContent"

	payload := strings.NewReader("{\n  \"contents\": [\n    {\n      \"role\": \"user\",\n      \"parts\": [\n        {\n          \"text\": \"Hello, Gemini!\"\n        }\n      ]\n    }\n  ],\n  \"systemInstruction\": {\n    \"parts\": [\n      {\n        \"text\": \"<string>\"\n      }\n    ]\n  },\n  \"generationConfig\": {\n    \"temperature\": 1,\n    \"topP\": 0.5,\n    \"topK\": 123,\n    \"maxOutputTokens\": 123,\n    \"stopSequences\": [\n      \"<string>\"\n    ],\n    \"responseSchema\": {}\n  },\n  \"tools\": [\n    {\n      \"functionDeclarations\": [\n        {\n          \"name\": \"<string>\",\n          \"description\": \"<string>\",\n          \"parameters\": {}\n        }\n      ]\n    }\n  ],\n  \"toolConfig\": {\n    \"functionCallingConfig\": {\n      \"allowedFunctionNames\": [\n        \"<string>\"\n      ]\n    }\n  },\n  \"safetySettings\": [\n    {}\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://www.anyfast.ai/v1beta/models/{model}:generateContent")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"contents\": [\n    {\n      \"role\": \"user\",\n      \"parts\": [\n        {\n          \"text\": \"Hello, Gemini!\"\n        }\n      ]\n    }\n  ],\n  \"systemInstruction\": {\n    \"parts\": [\n      {\n        \"text\": \"<string>\"\n      }\n    ]\n  },\n  \"generationConfig\": {\n    \"temperature\": 1,\n    \"topP\": 0.5,\n    \"topK\": 123,\n    \"maxOutputTokens\": 123,\n    \"stopSequences\": [\n      \"<string>\"\n    ],\n    \"responseSchema\": {}\n  },\n  \"tools\": [\n    {\n      \"functionDeclarations\": [\n        {\n          \"name\": \"<string>\",\n          \"description\": \"<string>\",\n          \"parameters\": {}\n        }\n      ]\n    }\n  ],\n  \"toolConfig\": {\n    \"functionCallingConfig\": {\n      \"allowedFunctionNames\": [\n        \"<string>\"\n      ]\n    }\n  },\n  \"safetySettings\": [\n    {}\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://www.anyfast.ai/v1beta/models/{model}:generateContent")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"contents\": [\n    {\n      \"role\": \"user\",\n      \"parts\": [\n        {\n          \"text\": \"Hello, Gemini!\"\n        }\n      ]\n    }\n  ],\n  \"systemInstruction\": {\n    \"parts\": [\n      {\n        \"text\": \"<string>\"\n      }\n    ]\n  },\n  \"generationConfig\": {\n    \"temperature\": 1,\n    \"topP\": 0.5,\n    \"topK\": 123,\n    \"maxOutputTokens\": 123,\n    \"stopSequences\": [\n      \"<string>\"\n    ],\n    \"responseSchema\": {}\n  },\n  \"tools\": [\n    {\n      \"functionDeclarations\": [\n        {\n          \"name\": \"<string>\",\n          \"description\": \"<string>\",\n          \"parameters\": {}\n        }\n      ]\n    }\n  ],\n  \"toolConfig\": {\n    \"functionCallingConfig\": {\n      \"allowedFunctionNames\": [\n        \"<string>\"\n      ]\n    }\n  },\n  \"safetySettings\": [\n    {}\n  ]\n}"

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

200

{
  "candidates": [
    {
      "content": {
        "parts": [
          {
            "text": "<string>"
          }
        ],
        "role": "model"
      },
      "index": 123,
      "safetyRatings": [
        {
          "category": "<string>",
          "probability": "<string>"
        }
      ]
    }
  ],
  "usageMetadata": {
    "promptTokenCount": 123,
    "candidatesTokenCount": 123,
    "totalTokenCount": 123
  },
  "modelVersion": "<string>"
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "status": "<string>"
  }
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "status": "<string>"
  }
}

{
  "error": {
    "code": 123,
    "message": "<string>",
    "status": "<string>"
  }
}

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

model · enum<string> · required

The model name to use for generation.

Available options: gemini-3.1-pro-preview, gemini-3.1-flash-image, gemini-3.1-flash-lite-preview, gemini-3-pro-preview, gemini-3-pro-image, gemini-3-flash-preview, gemini-2.5-pro, gemini-2.5-flash, gemini-2.5-flash-lite, gemini-2.0-flash

Body

application/json

contents · object[] · required

The content of the current conversation with the model.

Minimum array length: 1

Show child attributes

Example:

[
  {
    "role": "user",
    "parts": [{ "text": "Hello, Gemini!" }]
  }
]

systemInstruction · object

Developer set system instruction.

Show child attributes

generationConfig · object

Configuration options for model generation and outputs.

Show child attributes

tools · object[]

A list of tools the model may use to generate a response.

Show child attributes

toolConfig · object

Tool configuration for any tools specified in the request.

Show child attributes

safetySettings · object[]

A list of unique SafetySetting instances for blocking unsafe content.

Show child attributes

Response

200

application/json

Content generated successfully

candidates · object[]

Show child attributes

usageMetadata · object

Show child attributes

modelVersion · string