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Example code of modfin/bellman

Informations about the package bellman

bellman-php

PHP client for bellmand, the Bellman LLM proxy. One URL and one API key give you OpenAI, Anthropic, Gemini (VertexAI), VoyageAI, Ollama, vLLM and xAI behind the same interface.

Requires PHP 8.1+.

Install

If the package is not on Packagist (or you want to pin to the GitHub repo directly), add the repository to your composer.json first:

Usage

The key name (my-app) identifies the caller in bellmand's logs and metrics, the token is the API key configured in bellmand.

Configuring a generator

Generators are immutable, every setter returns a new instance, so configure once and reuse.

Also available: topP(), topK(), frequencyPenalty(), presencePenalty(), stopAt(), thinkingBudget() and includeThinkingParts().

Structured output

Images, PDFs and other files

Pass raw bytes, the client takes care of base64 encoding. Plain strings passed to prompt() are user messages.

Conversations

Append $res->turn to the prompts to continue a conversation. It holds the assistant's reply in replay-ready form, including thinking signatures that some providers require you to send back.

Embeddings

Models

All models known to the Go library are available as static constructors on Bellman\Models\Anthropic, OpenAI, VertexAI, VoyageAI, Ollama, VLLM, XAI and OMLX, with the same names as in Go:

Any model bellmand can route to works, including ones not in the catalog:

Usage and errors

Every failure throws Bellman\BellmanException. $e->statusCode holds the HTTP status from bellmand (null if it was never reached), and $e->isRateLimited() and $e->isUnauthorized() cover the common cases.

HTTP client

Guzzle is used by default with a 300 second timeout. Any PSR-18 client can be passed instead:

Laravel

Then inject Bellman\Client wherever you need it.

Development

src/Models is generated from the Go library's model definitions. To update it after models change in bellman, run this from the repo root, with a bellman checkout next to it:

Not yet supported: streaming, and tools / function calling.

All versions of bellman with dependencies

PHP Build Version
Package Version
Requires php Version >=8.1
ext-json Version *
guzzlehttp/guzzle Version ^7.8
psr/http-client Version ^1.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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