The Buildfunctions SDK for Agents

 

Hardware-isolated execution environments for AI agents

Installation

npm install buildfunctions

Quick Start

1. Create an API Token

Get your API token at buildfunctions.com/settings

2. CPU Function

import { Buildfunctions, CPUFunction } from 'buildfunctions'

const buildfunctions = await Buildfunctions({ apiToken: process.env.BUILDFUNCTIONS_API_TOKEN })

const deployedFunction = await CPUFunction.create({
  name: 'my-cpu-function',
  code: './cpu_function_code.py',
  language: 'python',
  memory: 128,
  timeout: 30
})

console.log('Endpoint:', deployedFunction.endpoint)

await deployedFunction.delete()

3. CPU Sandbox

import { Buildfunctions, CPUSandbox } from 'buildfunctions'

const buildfunctions = await Buildfunctions({ apiToken: process.env.BUILDFUNCTIONS_API_TOKEN })

const sandbox = await CPUSandbox.create({
  name: 'my-cpu-sandbox',
  language: 'python',
  code: '/path/to/code/cpu_sandbox_code.py',
  memory: 128,
  timeout: 30,
})

const result = await sandbox.run()
console.log('Result:', result)

await sandbox.delete()

4. GPU Function

import { Buildfunctions, GPUFunction } from 'buildfunctions'

const buildfunctions = await Buildfunctions({ apiToken: process.env.BUILDFUNCTIONS_API_TOKEN })

const deployedFunction = await GPUFunction.create({
  name: 'my-gpu-function',
  code: '/path/to/code/gpu_function_code.py',
  language: 'python',
  gpu: 'T4',
  vcpus: 30,
  memory: "50000MB",
  timeout: 300,
  requirements: ['transformers==4.47.1', 'torch', 'accelerate'],
})

console.log('Endpoint:', deployedFunction.endpoint)

await deployedFunction.delete()

5. GPU Sandbox with Local Model

import { Buildfunctions, GPUSandbox } from 'buildfunctions'

const buildfunctions = await Buildfunctions({ apiToken: process.env.BUILDFUNCTIONS_API_TOKEN })

const sandbox = await GPUSandbox.create({
  name: 'my-gpu-sandbox',
  language: 'python',
  memory: 10000,
  timeout: 300,
  vcpus: 6,
  code: './gpu_sandbox_code.py',
  model: '/path/to/models/Qwen/Qwen3-8B',
  requirements: "torch"
})

const result = await sandbox.run()
console.log('Result:', result)

await sandbox.delete()

The SDK is currently in beta. The SDK is currently in beta. If you encounter any issues or have specific syntax requirements, please reach out and contact us at team@buildfunctions.com, and we’ll work to address them.