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alexandrevega/gemini-api-client
===============================

API client for Google's Gemini API

v1.0.0(1y ago)1304MITPHPPHP ^8.1

Since Sep 27Pushed 1y agoCompare

[ Source](https://github.com/alexandrevega/gemini-api-client)[ Packagist](https://packagist.org/packages/alexandrevega/gemini-api-client)[ RSS](/packages/alexandrevega-gemini-api-client/feed)WikiDiscussions main Synced 1mo ago

READMEChangelog (1)Dependencies (11)Versions (2)Used By (0)

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Gemini API PHP Client
=====================

[](#gemini-api-php-client)

This library is a fork of [gemini-api-php/client](https://github.com/gemini-api-php/client) adding system instructions and updating api to v1beta.

Gemini API PHP Client allows you to use the Google's generative AI models, like Gemini Pro and Gemini Pro Vision.

*This library is not developed or endorsed by Google.*

- Erdem Köse - **[github.com/erdemkose](https://github.com/erdemkose)**
- Alexandre Vega - **[github.com/alexandrevega](https://github.com/alexandrevega)**

Table of Contents
-----------------

[](#table-of-contents)

- [Installation](#installation)
- [How to use](#how-to-use)
    - [Basic text generation](#basic-text-generation)
    - [Multimodal input](#multimodal-input)
    - [Chat Session (Multi-Turn Conversations)](#chat-session-multi-turn-conversations)
    - [Chat Session with history](#chat-session-with-history)
    - [Streaming responses](#streaming-responses)
    - [Streaming Chat Session](#streaming-chat-session)
    - [System Instruction](#system-instruction)
    - [Tokens counting](#tokens-counting)
    - [Listing models](#listing-models)
    - [Advanced Usages](#advanced-usages)
        - [Safety Settings and Generation Configuration](#safety-settings-and-generation-configuration)
        - [Using your own HTTP client](#using-your-own-http-client)
        - [Using your own HTTP client for streaming responses](#using-your-own-http-client-for-streaming-responses)

Installation
------------

[](#installation)

> You need an API key to gain access to Google's Gemini API. Visit [Google AI Studio](https://makersuite.google.com/) to get an API key.

First step is to install the Gemini API PHP client with Composer.

```
composer require alexandrevega/gemini-api-client
```

Gemini API PHP client does not come with an HTTP client. If you are just testing or do not have an HTTP client library in your project, you need to allow `php-http/discovery` composer plugin or install a PSR-18 compatible client library.

How to use
----------

[](#how-to-use)

### Basic text generation

[](#basic-text-generation)

```
use GeminiAPI\Client;
use GeminiAPI\Resources\Parts\TextPart;

$client = new Client('GEMINI_API_KEY');
$response = $client->geminiPro()->generateContent(
    new TextPart('PHP in less than 100 chars'),
);

print $response->text();
// PHP: A server-side scripting language used to create dynamic web applications.
// Easy to learn, widely used, and open-source.
```

### Multimodal input

[](#multimodal-input)

> Image input modality is only enabled for Gemini Pro Vision model

```
use GeminiAPI\Client;
use GeminiAPI\Enums\MimeType;
use GeminiAPI\Resources\Parts\ImagePart;
use GeminiAPI\Resources\Parts\TextPart;

$client = new Client('GEMINI_API_KEY');
$response = $client->geminiProVision()->generateContent(
    new TextPart('Explain what is in the image'),
    new ImagePart(
        MimeType::IMAGE_JPEG,
        base64_encode(file_get_contents('elephpant.jpg')),
    ),
);

print $response->text();
// The image shows an elephant standing on the Earth.
// The elephant is made of metal and has a glowing symbol on its forehead.
// The Earth is surrounded by a network of glowing lines.
// The image is set against a starry background.
```

### Chat Session (Multi-Turn Conversations)

[](#chat-session-multi-turn-conversations)

```
use GeminiAPI\Client;
use GeminiAPI\Resources\Parts\TextPart;

$client = new Client('GEMINI_API_KEY');
$chat = $client->geminiPro()->startChat();

$response = $chat->sendMessage(new TextPart('Hello World in PHP'));
print $response->text();

$response = $chat->sendMessage(new TextPart('in Go'));
print $response->text();
```

```

This code will print "Hello World!" to the standard output.

```

```
package main

import "fmt"

func main() {
    fmt.Println("Hello World!")
}

This code will print "Hello World!" to the standard output.

```

### Chat Session with history

[](#chat-session-with-history)

```
use GeminiAPI\Client;
use GeminiAPI\Enums\Role;
use GeminiAPI\Resources\Content;
use GeminiAPI\Resources\Parts\TextPart;

$history = [
    Content::text('Hello World in PHP', Role::User),
    Content::text(

        This code will print "Hello World!" to the standard output.
        TEXT,
        Role::Model,
    ),
];

$client = new Client('GEMINI_API_KEY');
$chat = $client->geminiPro()
    ->startChat()
    ->withHistory($history);

$response = $chat->sendMessage(new TextPart('in Go'));
print $response->text();
```

```
package main

import "fmt"

func main() {
    fmt.Println("Hello World!")
}

This code will print "Hello World!" to the standard output.

```

### Streaming responses

[](#streaming-responses)

> Requires `curl` extension to be enabled

In the streaming response, the callback function will be called whenever a response is returned from the server.

Long responses may be broken into separate responses, and you can start receiving responses faster using a content stream.

```
use GeminiAPI\Client;
use GeminiAPI\Resources\Parts\TextPart;
use GeminiAPI\Responses\GenerateContentResponse;

$callback = function (GenerateContentResponse $response): void {
    static $count = 0;

    print "\nResponse #{$count}\n";
    print $response->text();
    $count++;
};

$client = new Client('GEMINI_API_KEY');
$client->geminiPro()->generateContentStream(
    $callback,
    [new TextPart('PHP in less than 100 chars')],
);
// Response #0
// PHP: a versatile, general-purpose scripting language for web development, popular for
// Response #1
//  its simple syntax and rich library of functions.
```

### Streaming Chat Session

[](#streaming-chat-session)

> Requires `curl` extension to be enabled

```
use GeminiAPI\Client;
use GeminiAPI\Enums\Role;
use GeminiAPI\Resources\Content;
use GeminiAPI\Resources\Parts\TextPart;
use GeminiAPI\Responses\GenerateContentResponse;

$history = [
    Content::text('Hello World in PHP', Role::User),
    Content::text(

        This code will print "Hello World!" to the standard output.
        TEXT,
        Role::Model,
    ),
];

$callback = function (GenerateContentResponse $response): void {
    static $count = 0;

    print "\nResponse #{$count}\n";
    print $response->text();
    $count++;
};

$client = new Client('GEMINI_API_KEY');
$chat = $client->geminiPro()
    ->startChat()
    ->withHistory($history);

$chat->sendMessageStream($callback, new TextPart('in Go'));
```

```
Response #0
package main

import "fmt"

func main() {

Response #1
    fmt.Println("Hello World!")
}

This code will print "Hello World!" to the standard output.

```

### System Instruction

[](#system-instruction)

You can add [System Instructions](https://ai.google.dev/gemini-api/docs/system-instructions?hl=en&lang=web) to steer the behaviour of Gemini.

```
use GeminiAPI\Client;
use GeminiAPI\Enums\Role;
use GeminiAPI\Resources\Content;
use GeminiAPI\Resources\Parts\TextPart;

$history = [
    Content::text('Hello World in PHP', Role::User),
    Content::text(

        This code will print "Hello World!" to the standard output.
        TEXT,
        Role::Model,
    ),
];

$client = new Client('GEMINI_API_KEY');
$chat = $client->geminiPro()
    ->withSystemInstruction("You're an expert developer")
    ->startChat()
    ->withHistory($history);

$response = $chat->sendMessage(new TextPart('in Go'));
print $response->text();
```

```
Response #0
package main

import "fmt"

func main() {

Response #1
    fmt.Println("Hello World!")
}

This code will print "Hello World!" to the standard output.

```

### Embed Content

[](#embed-content)

```
use GeminiAPI\Client;
use GeminiAPI\Enums\ModelName;
use GeminiAPI\Resources\Parts\TextPart;

$client = new Client('GEMINI_API_KEY');
$response = $client->embeddingModel(ModelName::Embedding)
    ->embedContent(
        new TextPart('PHP in less than 100 chars'),
    );

print_r($response->embedding->values);
// [
//    [0] => 0.041395925
//    [1] => -0.017692696
//    ...
// ]
```

### Tokens counting

[](#tokens-counting)

```
use GeminiAPI\Client;
use GeminiAPI\Resources\Parts\TextPart;

$client = new Client('GEMINI_API_KEY');
$response = $client->geminiPro()->countTokens(
    new TextPart('PHP in less than 100 chars'),
);

print $response->totalTokens;
// 10
```

### Listing models

[](#listing-models)

```
use GeminiAPI\Client;

$client = new Client('GEMINI_API_KEY');
$response = $client->listModels();

print_r($response->models);
//[
//  [0] => GeminiAPI\Resources\Model Object
//    (
//      [name] => models/gemini-pro
//      [displayName] => Gemini Pro
//      [description] => The best model for scaling across a wide range of tasks
//      ...
//    )
//  [1] => GeminiAPI\Resources\Model Object
//    (
//      [name] => models/gemini-pro-vision
//      [displayName] => Gemini Pro Vision
//      [description] => The best image understanding model to handle a broad range of applications
//      ...
//    )
//]
```

### Advanced Usages

[](#advanced-usages)

#### Safety Settings and Generation Configuration

[](#safety-settings-and-generation-configuration)

```
use GeminiAPI\Client;
use GeminiAPI\Enums\HarmCategory;
use GeminiAPI\Enums\HarmBlockThreshold;
use GeminiAPI\GenerationConfig;
use GeminiAPI\Resources\Parts\TextPart;
use GeminiAPI\SafetySetting;

$safetySetting = new SafetySetting(
    HarmCategory::HARM_CATEGORY_HATE_SPEECH,
    HarmBlockThreshold::BLOCK_LOW_AND_ABOVE,
);
$generationConfig = (new GenerationConfig())
    ->withCandidateCount(1)
    ->withMaxOutputTokens(40)
    ->withTemperature(0.5)
    ->withTopK(40)
    ->withTopP(0.6)
    ->withStopSequences(['STOP']);

$client = new Client('GEMINI_API_KEY');
$response = $client->geminiPro()
    ->withAddedSafetySetting($safetySetting)
    ->withGenerationConfig($generationConfig)
    ->generateContent(
        new TextPart('PHP in less than 100 chars')
    );
```

#### Using your own HTTP client

[](#using-your-own-http-client)

```
use GeminiAPI\Client as GeminiClient;
use GeminiAPI\Resources\Parts\TextPart;
use GuzzleHttp\Client as GuzzleClient;

$guzzle = new GuzzleClient([
  'proxy' => 'http://localhost:8125',
]);

$client = new GeminiClient('GEMINI_API_KEY', $guzzle);
$response = $client->geminiPro()->generateContent(
    new TextPart('PHP in less than 100 chars')
);
```

#### Using your own HTTP client for streaming responses

[](#using-your-own-http-client-for-streaming-responses)

> Requires `curl` extension to be enabled

Since streaming responses are fetched using `curl` extension, they cannot use the custom HTTP client passed to the Gemini Client. You need to pass a `CurlHandler` if you want to override connection options.

The following curl options will be overwritten by the Gemini Client.

- `CURLOPT_URL`
- `CURLOPT_POST`
- `CURLOPT_POSTFIELDS`
- `CURLOPT_WRITEFUNCTION`

You can also pass the headers you want to be used in the requests.

```
use GeminiAPI\Client;
use GeminiAPI\Resources\Parts\TextPart;
use GeminiAPI\Responses\GenerateContentResponse;

$callback = function (GenerateContentResponse $response): void {
    print $response->text();
};

$ch = curl_init();
curl_setopt($ch, \CURLOPT_PROXY, 'http://localhost:8125');

$client = new Client('GEMINI_API_KEY');
$client->withRequestHeaders([
        'User-Agent' => 'My Gemini-backed app'
    ])
    ->geminiPro()
    ->generateContentStream(
        $callback,
        [new TextPart('PHP in less than 100 chars')],
        $ch,
    );
```

###  Health Score

29

—

LowBetter than 60% of packages

Maintenance36

Infrequent updates — may be unmaintained

Popularity14

Limited adoption so far

Community9

Small or concentrated contributor base

Maturity48

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 70.5% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

589d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/299130cd64c5ef475cf4d7fa6fb1144f91956d080c315f6f8517a51f094c29a1?d=identicon)[alexandrevega](/maintainers/alexandrevega)

---

Top Contributors

[![erdemkose](https://avatars.githubusercontent.com/u/4168527?v=4)](https://github.com/erdemkose "erdemkose (31 commits)")[![alexandrevega](https://avatars.githubusercontent.com/u/8642690?v=4)](https://github.com/alexandrevega "alexandrevega (12 commits)")[![camilleislasse](https://avatars.githubusercontent.com/u/34024380?v=4)](https://github.com/camilleislasse "camilleislasse (1 commits)")

---

Tags

phpapiclientsdkgoogleaiGeminigemini-progemini pro vision

###  Code Quality

TestsPHPUnit

Static AnalysisPHPStan

Code StylePHP CS Fixer

Type Coverage Yes

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```
[![Health](https://phpackages.com/badges/alexandrevega-gemini-api-client/health.svg)](https://phpackages.com/packages/alexandrevega-gemini-api-client)
```

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