Aider

Aider has no plugin system and no memory
The proxy path fixes that.

Q: Does Aider support MCP?

No. Aider has no plugin system and does not implement the Model Context Protocol. It does support pointing at any OpenAI-compatible API endpoint, and that is the integration path MemoryRouter uses.

Q: How does the proxy path work?

MemoryRouter runs as a drop-in OpenAI-compatible endpoint. Set OPENAI_API_BASE to https://api.memoryrouter.ai/v1 and OPENAI_API_KEY to your MemoryRouter Memory Key. Aider talks to it exactly like it talks to OpenAI. Every request is retrieved and stored automatically. There is nothing to install.

Q: Is memory automatic, or do I have to ask for it?

Automatic. Every message you send through the proxy is stored, and relevant memory is retrieved and injected before your prompt reaches the model, on every single request. There is no tool call for Aider to remember to make.

Q: What model name do I use?

Aider’s own convention for OpenAI-compatible endpoints is to prefix the model with openai/, for example --model openai/gpt-5.5. MemoryRouter supports OpenAI, Anthropic, Google, Meta, Mistral, xAI, DeepSeek, and OpenRouter models with a matching prefix. Check the full model list in the API docs before you pick one.

Q: Can I turn memory off for one session without changing anything?

Yes. Append :off to your key (mk_xxx:off) for a pure pass-through with no memory, :read to use past memory without storing this session, or :write to store without retrieving. Same key, different suffix, no config file changes.

Q: Does my model provider API key still matter?

Yes. You add your OpenAI, Anthropic, or other provider key once in your MemoryRouter dashboard. MemoryRouter forwards your request to that provider using your key and returns the same response format Aider expects.

Q: Is the same memory available in other tools?

Yes. One MemoryRouter vault. Whatever you build with Aider is recallable from Claude, ChatGPT, Cursor, or Claude Code, and vice versa.

No MCP support to configure. Point one environment variable at MemoryRouter and every chat is remembered.

One environment variable. Permanently.

14 days free

Full access. Point Aider at the proxy, watch it remember, cancel anytime.

See the difference

WITHOUT MEMORY

You: Finish the migration script we discussed

Aider: I don't have any prior context on a migration script. What is the target schema?

A new terminal session, and yesterday's conversation is gone.

WITH MEMORYROUTER

You: Finish the migration script we discussed

Aider: Continuing the users table split we planned, Postgres 16, zero-downtime constraint. Writing the backfill script now.

No tool call needed. It was already in context.

Sound familiar?

Re-explaining the same architecture in every new terminal session

No plugin ecosystem to add memory through

Decisions from yesterday's session, gone

With MemoryRouter

Every request through the proxy is stored automatically, no tool calls needed

Relevant memory is retrieved and injected before every prompt reaches the model

Works with any OpenAI-compatible provider Aider already supports

Start free

14-day free trial. Cancel anytime.

Connect Aider in two minutes

No plugin, no MCP config. Just point Aider's OpenAI-compatible settings at MemoryRouter.

Step 1: Set the proxy environment variables (Mac/Linux)

export OPENAI_API_BASE=https://api.memoryrouter.ai/v1
export OPENAI_API_KEY=mk_your_memory_key

On Windows: setx OPENAI_API_BASE https://api.memoryrouter.ai/v1 && setx OPENAI_API_KEY mk_your_memory_key, then restart your shell.

Step 2: Run Aider with a MemoryRouter-supported model

$ aider --model openai/gpt-5.5

Replace mk_your_memory_key with your MemoryRouter Memory Key. See the full supported model list, including Anthropic, Google, and OpenRouter models, in the API docs.

Get my memory key

How it works

Without MemoryRouter:

Aider Model provider Response (gone when the session ends)

With MemoryRouter:

Aider MemoryRouter proxy (retrieve, inject, store) Model provider Response

MemoryRouter is an OpenAI-compatible endpoint that sits in the request path. It queries your memory, injects relevant context into the prompt, forwards the request to your chosen provider using the provider key on your account, stores new memory, and returns the standard response. Aider never knows the difference.

No plugin, no MCP

Two environment variables. Aider does not need any code changes or extensions to work with MemoryRouter.

Every model Aider supports

OpenAI, Anthropic, Google, Meta, Mistral, xAI, DeepSeek, and 200+ models through OpenRouter, all with the matching provider prefix.

Toggle memory per key

Suffix your key with :read, :write, or :off to change behavior for one session without touching any config.

Same memory everywhere else

One vault. Connect it to Claude, ChatGPT, Cursor, or Claude Code and the memory follows you between tools.

Start free

Connect in two minutes. 14-day free trial.

Start free. Then just $20/mo.

14-day free trial. Cancel anytime.

14-DAY FREE TRIAL

$20/mo

200M tokens included every month

200M memory tokens / mo included
Unlimited projects
Same memory in ChatGPT, Claude, Claude Code, and Codex
300 to 500 ms average recall on a typical vault
Your keys, your data, your control

Start free

No inference markup, ever.

FAQ

Does Aider support MCP?

How does the proxy path work?

Is memory automatic, or do I have to ask for it?

What model name do I use?

Can I turn memory off for one session without changing anything?

Does my model provider API key still matter?

Is the same memory available in other tools?

Give Aider a memory tonight

14 days free. Two minutes to connect. Tomorrow's first session already knows everything from today.

Get your memory key Compare memory behavior

Aider OpenAI-compatible docs MemoryRouter API docs See all coding tools

Aider has no plugin system and no memoryThe proxy path fixes that.

See the difference

Sound familiar?

With MemoryRouter

Connect Aider in two minutes

How it works

No plugin, no MCP

Every model Aider supports

Toggle memory per key

Same memory everywhere else

Start free. Then just $20/mo.

FAQ

Give Aider a memory tonight

Aider has no plugin system and no memory
The proxy path fixes that.