Vercel AI SDK

Create a named OpenAI-compatible provider to send AI SDK requests to PromptsForLess. This follows the AI SDK's compatible provider documentation and works on any host, not only Vercel.

InstallCopy Anchor Link

pnpm add ai @ai-sdk/openai-compatible

Store your key from the dashboard as PFL_API_KEY in your server environment. Keep it out of public environment variables and client code.

Create a providerCopy Anchor Link

import { createOpenAICompatible } from '@ai-sdk/openai-compatible';
import { generateText } from 'ai';

const pfl = createOpenAICompatible({
  name: 'promptsforless',
  baseURL: 'https://api.promptsforless.com/v1',
  apiKey: process.env.PFL_API_KEY,
});

const result = await generateText({
  model: pfl('deepseek-v4.1-flash'),
  prompt: 'Write one friendly sentence welcoming a new developer.',
});

console.log(result.text);
console.log(result.usage);

Swap in any model ID from the catalog. Always pass pfl(modelId): a bare model string makes the SDK pick its own default provider.

Stream a responseCopy Anchor Link

import { streamText } from 'ai';

const result = streamText({
  model: pfl('deepseek-v4.1-flash'),
  prompt: 'Write a brief greeting.',
});

for await (const part of result.textStream) {
  process.stdout.write(part);
}

See the streamText reference for options. For a browser chat UI, stream from a server route that holds the key; never create this provider in the browser.

Add tools and structured outputCopy Anchor Link

The AI SDK's tools option and structured output helpers work with PromptsForLess. Pick a model that supports the feature you need, such as tool calling or image input.

TroubleshootingCopy Anchor Link

Use the quickstart to test HTTP directly and the catalog to compare prices.