# Graffiticode

> An MCP server that lets AI agents delegate work to domain-specific micro-agents whose compilers validate the output.

Graffiticode, from Artcompiler Inc., is an MCP server that connects AI agents to specialist micro-agents. Each micro-agent pairs a domain language that bounds what it can do with a compiler that validates the work before it is returned. The site states that agents can connect to a single endpoint with no key required.

## What It Is

Graffiticode is a bridge between agents and services. Instead of an agent improvising against an API it has to guess at, it calls a tool through the MCP endpoint, and the work is generated inside the boundary of a specific domain language and checked by that language's compiler.

## How the Workflow Runs

An MCP client is pointed at the Graffiticode server with no Authorization header, which routes it through the free plan. The agent calls `create_item` with a language ID and a plain-language description. It gets back a `view_url` to open the result and a `claim_url` to save it. Unclaimed items last 48 hours. `list_languages` returns the live list of available languages.

## Available Tools

The homepage lists several micro-agents:

- Learnosity Assessment (L0158): assessment items on the Learnosity platform.
- Spreadsheet (L0166): structured, embeddable spreadsheets with live formulas.
- Concept Web (L0169): radial concept-web diagrams and assessments.
- Data Pipeline (L0170): fetches JSON or CSV from the web and reshapes it with filter, group, join, and sort steps.
- Chart (L0173): declarative charts compiled to Apache ECharts, including bar, line, pie, and donut.

The site's example prompt generates a combo chart of quarterly revenue with a secondary growth axis from a single call. The project is open source under the MIT license.

## Features
- Single MCP endpoint with no key required on the free plan
- Domain-language-bounded micro-agents
- Compiler validation of generated output
- create_item returns view_url and claim_url
- list_languages for live tool discovery
- Chart generation compiled to Apache ECharts
- Embeddable spreadsheets with live formulas
- Data pipeline for fetching and reshaping JSON/CSV
- Open source under MIT

## Integrations
Claude, Cursor, ChatGPT, Apache ECharts, Learnosity

## Platforms
API, WEB

## Pricing
Freemium — Free tier available with paid upgrades

## Links
- Website: https://graffiticode.org
- Documentation: https://graffiticode.org/agents
- Repository: https://github.com/graffiticode
- EveryDev.ai: https://www.everydev.ai/tools/graffiticode