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I've really got to refactor my side project which I tailored to just use OpenAI API calls. I think the Anthropic APIs are a bit different so I just never put in

I've really got to refactor my side project which I tailored to just use OpenAI API calls. I think the Anthropic APIs are a bit different so I just never put in the energy to support the changes. I think I remember reading that there are tools to simpify this kind of work, to support multiple LLM APIs? I'm sure I could do it manually but how do you all support multiple API providers that have some differences in the API design?

willcodeforfoo 1y ago
https://openrouter.ai/ https://openrouter.ai/?
pinum 1y ago
I use LiteLLM as a proxy.
dingnuts 1y ago
> think I remember reading that there are tools to simpify this kind of work, to support multiple LLM APIs just ask Claude to generate a tool that does this, duh! and tell Claude to make the changes to your side project and then to have sex with your wife too since it's doing all the fun parts
deleted 1y ago
[deleted]
adidoit 1y ago
LiteLLM is your friend.
- adidoit 1y ago
  or AI SDK
l1n 1y ago
https://docs.anthropic.com/en/api/openai-sdk https://docs.anthropic.com/en/api/openai-sdk
punkpeye 1y ago
OpenRouter, Glama ( https://glama.ai/gateway/models/claude-sonnet-4-5-20250929 https://glama.ai/gateway/models/claude-sonnet-4-5-20250929 ), AWS Bedrock, all of them provide you access to all of the AI models via OpenAI compatible API.
gloosx 1y ago
Why don't you ask LLM to do it for you?
juanre 1y ago
I built LLMRing (https://llmring.ai https://llmring.ai) for exactly this. Unified interface across OpenAI, Anthropic, Google, and Ollama - same code works with all providers. The key feature: use aliases instead of hardcoding model IDs. Your code references "summarizer", and a version-controlled lockfile maps it to the actual model. Switch providers by changing the lockfile, not your code. Also handles streaming, tool calling, and structured output consistently across providers. Plus a human-curated registry (https://llmring.github.io/registry/ https://llmring.github.io/registry/) that I keep updated with current model capabilities and pricing - helpful when choosing models. MIT licensed, works standalone. I am using it in several projects, but it's probably not ready to be presented in polite society yet.

willcodeforfoo 1y ago

https://openrouter.ai/ https://openrouter.ai/?

pinum 1y ago

I use LiteLLM as a proxy.

dingnuts 1y ago

> think I remember reading that there are tools to simpify this kind of work, to support multiple LLM APIs just ask Claude to generate a tool that does this, duh! and tell Claude to make the changes to your side project and then to have sex with your wife too since it's doing all the fun parts

deleted 1y ago

[deleted]

adidoit 1y ago

LiteLLM is your friend.

adidoit 1y ago
or AI SDK

l1n 1y ago

https://docs.anthropic.com/en/api/openai-sdk https://docs.anthropic.com/en/api/openai-sdk

punkpeye 1y ago

OpenRouter, Glama ( https://glama.ai/gateway/models/claude-sonnet-4-5-20250929 https://glama.ai/gateway/models/claude-sonnet-4-5-20250929 ), AWS Bedrock, all of them provide you access to all of the AI models via OpenAI compatible API.

gloosx 1y ago

Why don't you ask LLM to do it for you?

juanre 1y ago

I built LLMRing (https://llmring.ai https://llmring.ai) for exactly this. Unified interface across OpenAI, Anthropic, Google, and Ollama - same code works with all providers. The key feature: use aliases instead of hardcoding model IDs. Your code references "summarizer", and a version-controlled lockfile maps it to the actual model. Switch providers by changing the lockfile, not your code. Also handles streaming, tool calling, and structured output consistently across providers. Plus a human-curated registry (https://llmring.github.io/registry/ https://llmring.github.io/registry/) that I keep updated with current model capabilities and pricing - helpful when choosing models. MIT licensed, works standalone. I am using it in several projects, but it's probably not ready to be presented in polite society yet.