reaatech/a2a-reference-ts

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These packages provide a complete TypeScript implementation of the Agent-to-Agent (A2A) protocol, including a server framework, client SDK, and a bidirectional bridge to the Model Context Protocol (MCP). You would adopt these to build interoperable AI agents that need to discover each other, manage task lifecycles, and exchange messages using standardized JSON-RPC and SSE streaming. The collection is built around a shared core of Zod schemas and pluggable adapters, allowing you to swap persistence layers, authentication strategies, and HTTP frameworks while maintaining strict type safety across the entire agent communication stack.

a2a agent-orchestration agent-to-agent agentic-ai ai-agents express google-a2a hono llm-tools mcp mcp-bridge model-context-protocol monorepo multi-agent oauth2 opentelemetry postgres redis sse typescript

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7 packages

a2a-reference-auth

@reaatech/a2a-reference-auth

v0.1.0

Provides a set of interchangeable authentication strategies—including API key, JWT, and no-op—that implement a unified `authenticate` method. Each strategy is exported as a class that validates request headers and returns a standardized authentication result.

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status: published
published: 15 days ago

a2a-reference-client

@reaatech/a2a-reference-client

v0.1.0

Provides a TypeScript client class for interacting with A2A agents via JSON-RPC 2.0 and Server-Sent Events. It includes built-in agent discovery, automatic retry logic, and an `AsyncGenerator` interface for consuming real-time task streams.

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status: published
published: 15 days ago

a2a-reference-core

@reaatech/a2a-reference-core

v0.1.0

Provides canonical TypeScript types, Zod schemas, and custom error classes for the Agent-to-Agent (A2A) protocol. It serves as a shared library for validating agent cards, tasks, messages, and artifacts at runtime.

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status: published
published: 15 days ago

a2a-reference-mcp-bridge

@reaatech/a2a-reference-mcp-bridge

v0.1.0

Exposes A2A agent skills as MCP tools and wraps MCP tools as A2A skills to enable interoperability between the two ecosystems. It provides classes for bidirectional protocol translation and requires the `@modelcontextprotocol/sdk` package at runtime.

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status: published
published: 15 days ago

a2a-reference-observability

@reaatech/a2a-reference-observability

v0.1.0

Provides pre-configured Pino logger instances and utility functions for propagating correlation IDs across asynchronous boundaries. It exports a default logger and factory functions that automatically toggle between human-readable output for development and structured JSON for production environments.

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status: published
published: 15 days ago

a2a-reference-persistence

@reaatech/a2a-reference-persistence

v0.1.0

Provides a standardized `TaskStore` interface for persisting A2A task state, offering implementations for in-memory, file-system, and Redis storage. It supports paginated listing, history management, and artifact tracking, with the Redis implementation requiring the `ioredis` package at runtime.

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status: published
published: 15 days ago

a2a-reference-server

@reaatech/a2a-reference-server

v0.1.0

Provides Express and Hono adapters for building interoperable AI agents using JSON-RPC 2.0 routing, SSE streaming, and a task lifecycle state machine. It exposes factory functions that accept an agent definition and execution logic to generate a fully configured server instance.