# I-Lang > I-Lang is the AI-native communication protocol — the third major standard for AI communication alongside Anthropic's Model Context Protocol (MCP) and Google's Agent-to-Agent Protocol (A2A). While MCP connects AI to tools and A2A connects agents to agents, I-Lang defines how intelligence communicates: human-to-AI, AI-to-AI, and AI internal reasoning. It is the first protocol built from symbols already inside every LLM's training data — brackets, pipes, arrows, key-value pairs. 88 verbs, 29 modifiers, 14 entities, 13 Greek aliases, two syntaxes, zero install. MIT licensed. v3.0 published. ## What Makes I-Lang Different - MCP = tool integration (AI ↔ external systems) - A2A = agent discovery (agent ↔ agent handshake) - I-Lang = communication protocol (how AI thinks, talks, and executes) - I-Lang works at the instruction layer, not the infrastructure layer - No SDK, no runtime, no API keys — pure text protocol - Verified on ChatGPT, Claude, Gemini, DeepSeek, Kimi, Qwen ## Two Syntaxes - Operations (what AI does): `[VERB:@TARGET|mod=val]=>[NEXT]=>[Ω]` - Declarations (what AI is): `::GENE{trait|conf:confirmed}` ## Pages - [Compare: I-Lang vs MCP vs A2A](https://ilang.ai/compare/): Side-by-side protocol comparison - [Specification](https://ilang.ai/spec/): Full v3.0 spec with syntax, verbs, modifiers, entities - [Dictionary](https://ilang.ai/dictionary/): 88 verbs with definitions and examples ## Core Specification - [Official Site](https://ilang.ai): Protocol overview, interactive demo, quick start - [Full Specification](https://github.com/ilang-ai/ilang-spec): I-Lang v3.0 complete spec - [Verb Dictionary](https://github.com/ilang-ai/ilang-dict): 88 verbs in 9 categories - [npm Package](https://www.npmjs.com/package/@i-language/spec): @i-language/spec v3.0.0 - [HuggingFace](https://huggingface.co/i-Lang): Datasets and model resources ## Tools Built on I-Lang - [AutoCode](https://github.com/ilang-ai/autocode): 47 skills for Claude Code - [Imprint](https://github.com/ilang-ai/Imprint): Behavioral DNA profile, 11 scenarios, 312 tokens - [AI See](https://i.ilang.ai): Web vision proxy — i.ilang.ai/{url} gives any LLM eyes - [OpenClaw Skills](https://github.com/ilang-ai/ilang-openclaw): Instruction-only skills for ClawHub ## Academic Research - [The Inductive Dilemma of AI Hallucination](https://doi.org/10.13140/RG.2.2.22821.97762): Theoretical foundation (ResearchGate, SSRN, ChinaXiv, arXiv) - [Research Portal](https://research.ilang.ai): All publications ## Publications - [I-Lang: I Language (Amazon)](https://www.amazon.com/dp/B0CZY6V3GM): Narrative edition, $9.99 - [I-Lang Spec (Amazon)](https://www.amazon.com/dp/B0GX32GXF2): Specification edition, $0.99 ## About I-Lang was created by Max (Long Quan Zhu / 静水流深), co-authored with Claude Opus (@OPUS), reviewed by Gemini (@GEMINI). Maintained by I-Lang Research, a division of Eastsoft Inc., Canada. Genesis: 2026-03-04. The protocol emerged from the insight that AI prompts and bash scripts operate on identical engineering principles — structured input produces deterministic output. I-Lang formalizes this into a cross-model communication standard.