A lightweight LLM proxy to get structured results from most LLMs

In plain words

L1M is a lightweight API that extracts structured data from unstructured text and images using large language models. It simplifies the process of getting reliable, formatted results by handling prompt engineering and parsing automatically. The tool works with multiple LLM providers including OpenAI and Anthropic, and is available as open-source software under the MIT license. Users can integrate it via simple API calls or run it themselves.

written from the facts on this page · September 2026

From the sources

A Proxy to extract structured data from text and images using LLMs. l1m is the easiest way to get structured data from unstructured text or images using LLMs. No prompt engineering, no chat history, just a simple API to extract structured json from text or images. curl -X POST https://api.l1m.io/structured \ -H "Content-Type: application/json" \ -H "X-Provider-Url: demo" \ -H "X-Provider-Key: demo" \ -H "X-Provider-Model: demo" \ -d '{ "input": "'$(curl -s https://public.l1m.io/menu.jpg | base64)'", "schema": { "type": "object", "properties": { "items": { "type": "array", "items": { "type": "object", "properties": { "name": { "type": "string" }, "price": { "type": "number" } } } } } } }' ↑…from l1m.io

In the maker’s words, at launch

Hey HN! After struggling with complex prompt engineering and unreliable parsing, we built L1M, a simple API that lets you extract structured data from unstructured text and images. curl -X POST https://api.l1m.io/structured \ -H "Content-Type: application/json" \ -H "X-Provider-Url: demo" \ -H…

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  l1m.io2025 · l1m.io · ▲135

  The simplest API to get structured data from any LLM

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