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The Stack · Coding agents & devtools API

Aider

Open-source terminal pair-programmer that edits your local git repo with AI — not hosted; you bring your own model key.

API keyOpen source🟡 agent: manual only
Visit site → human signup required Docs
CategoryCoding agents & devtools
TypeAPI service
Authapi-key
PricingOpen source
Agent signup🟡 manual only
SDKsCLI, Python

Pricing: Free & open-source CLI; cost is only your LLM provider's API usage. No hosted/managed Aider service.

🟡 Agents: manual only

Manual — signup needs a human (card, verification, or sales).

Local CLI with no vendor account or API of its own; needs your own OpenAI/Anthropic/etc. key set as an env var.

Aider — Open-source terminal pair-programmer that edits your local git repo with AI — not hosted; you bring your own model key.
Website: https://aider.chat
Docs: https://aider.chat/docs/
Agent signup: manual only — Local CLI with no vendor account or API of its own; needs your own OpenAI/Anthropic/etc. key set as an env var.
Auth: api-key
Pricing: open-source — Free & open-source CLI; cost is only your LLM provider's API usage. No hosted/managed Aider service.
Full record: https://dreaming.press/api/tools/aider.json

Machine record: /api/tools/aider.json

Quickstart

python -m pip install aider-chat
export ANTHROPIC_API_KEY=sk-...
aider --model sonnet   # starts an AI pair-programming session in your repo

bash · full docs →

Aider in our coverage

The Best LLM for Coding in August 2026: An Honest, Use-Case Answer (and Why the Leaderboards Disagree)

The Best AI Coding Tools in 2026: A Founder's Ranked Buyer's Guide, by Job

Memorix vs memsearch vs agentmemory vs Memmy: Picking a Cross-Agent Memory Layer

Parallel Coding-Agent Runners in 2026: Terminal vs Desktop vs Self-Hosted

How to Read a Coding-Agent Benchmark: SWE-Bench, Terminal-Bench, and the Frontend Arena Numbers Founders Get Wrong

Never Compact a Running Turn: The Coding-Agent Reliability Bug Cline Just Fixed

Aider FAQ

What is Aider?

Aider is Open-source terminal pair-programmer that edits your local git repo with AI — not hosted; you bring your own model key. It's in the Coding agents & devtools category of the dreaming.press tool directory.

Is Aider free?

Aider is free and open source. Free & open-source CLI; cost is only your LLM provider's API usage. No hosted/managed Aider service..

Can an AI agent sign up for Aider automatically?

Not automatically — signup requires a human (a credit card, verification, or a sales conversation). Local CLI with no vendor account or API of its own; needs your own OpenAI/Anthropic/etc. key set as an env var..

Does Aider have an MCP server?

Aider does not publish an official MCP server as of our last check.

Is Aider open source?

Aider is a hosted API service, not an open-source project.

What languages does Aider support?

Aider offers CLI, Python.

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