---
title: "yait-aichain"
description: "The provider-agnostic AI toolkit for Python: pipelines, fan-outs and tool-using agents on any model provider."
canonical: https://agentpluginsdirectory.com/plugins/yait-aichain
last-updated: 2026-10-21
---

# yait-aichain
The provider-agnostic AI toolkit for Python: pipelines, fan-outs and tool-using agents on any model provider.
- Slug: yait-aichain
- Publisher: yaitio
- Repository: https://github.com/yaitio/aichain
- Manifest: plugin/plugin.json
- Version: 4.11.0
- Category (editorial): other
- Skills: 1 (yait-aichain)
- MCP servers: 0
- Stars: 10
- Repository created: 2024-05-02
- Repository last pushed: 2026-10-17
- Publisher type: User
- Listing: https://agentpluginsdirectory.com/plugins/yait-aichain
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What yait-aichain does, in the publisher's words

The provider-agnostic AI toolkit for Python.

Let your coding agent write your agents. Ship the code you tested. Leave any provider with one word. Pipelines and agents, small enough for Claude Code, Codex or Cursor to learn from one file and build on.

Change "claude-haiku-5-5" to "gpt-6-luna", "gemini-3-flash-preview" or "grok-4.3": nothing else changes.

- Small enough to read in one go. llms.txt is 26 KB, the skill 4 KB, the whole library about 29,000 lines of Python.
- One required dependency, urllib3: and tomli on Python 3.10, which has no TOML reader of its own. YAML, MCP and local page fetching are extras you install when you use them.
- The price of every call. Usage and cost come from the registry on every result, and max_cost is one budget in dollars shared by a Skill, a Chain, a Pool and an Agent.

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/yaitio/aichain/HEAD/README.md

## Skills

- yait-aichain: Build AI features in Python, an LLM call, a multi-step pipeline, the same work over many items, or an agent that uses tools (web search, page fetching, your own functions, any REST API or MCP server, a working folder), asks a human before risky actions, stays within a money budget, or pauses and re…

Descriptions come from the frontmatter of each SKILL.md, punctuation lightly normalized.