Protocol Specifications
Click on any protocol to view detailed documentation, ontology mapping, use cases, and code examples.
ACP
communication
Agent Communication Protocol
REST-based protocol for AI agent communication. Send messages, delegate tasks, and coordinate multi-agent workflows. Supports all data modalities.
Linux Foundation
MCP
context
Model Context Protocol
Universal connectivity for AI systems. Access the 6-dimension ontology, semantic search, and RAG pipelines. Native Claude Code integration.
Anthropic
A2A
coordination
Agent-to-Agent Protocol
Universal language for AI agents to collaborate. Framework-agnostic coordination across LangGraph, CrewAI, Semantic Kernel, and custom systems.
Google
AP2
payments
Agent Payments Protocol
Secure agent-led payments with cryptographic trust. Verifiable credentials, autonomous transactions, multi-platform bookings. Credit cards, crypto, bank transfers.
Google + 60 Organizations
X402
payments
HTTP-Native Payments
Instant digital payments via HTTP 402. Zero fees, ~2 second settlement, blockchain-agnostic. Pay-per-API-call, pay-per-GB, micropayments as low as $0.001.
Coinbase
AGUI
interface
Agent-Generated UI
Dynamic interfaces from structured JSON. Agents send component specs, frontend renders securely. Charts, tables, forms, actions—all type-safe and composable.
ONE Platform
Protocol Comparison
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