Agent2Agent Protocol (A2A)

Open-source research agent that plans questions, searches the web or your documents in parallel and writes a cited report with any LLM.

Multi-agent development platform built on Kotlin Multiplatform, with IDE plugins, a CLI, desktop, mobile and web targets.

Single Rust binary for an autonomous, self-improving agent with TUI, CLI and daemon modes and connections to many chat channels

Open-source personal agent you text over iMessage, running in its own cloud microVM with app connectors and approval-gated payments.

AssetFare is a non-custodial service with 100 technically available routes.

Agent Reputation runs the Complaint Bureau: a registry of complaints about paid agent transactions, where entry requires a signature from one of the two…

Java framework for distributed, long-running agents with typed event streams, permission gating, middleware and subagents.

TypeScript toolkit for agents with Zod-typed tools, graph and multi-agent workflows, and Node.js or browser runtimes.

Java runtime for AI agents that streams tokens and tool events over WebSocket, SSE or gRPC, with human approvals.

Python framework for multi-agent teams and workflows, with a CLI and Docker, MCP and A2A deployment options.

Python and TypeScript framework for multi-agent systems, with MCP and A2A interop, YAML orchestration and OpenTelemetry tracing.

Python framework and runtime for building agents, serving them over a REST API and MCP server, and managing them from a web control plane.

Open-source AI gateway with a Python SDK that calls 100+ LLM providers through the OpenAI format.

Cloud-native API, LLM and MCP gateway with multi-LLM routing, AI analytics and an extensible plugin system.

Open source gateway for HTTP, gRPC, LLM, MCP and agent-to-agent traffic in one data plane.

Open source registry and proxy that federates MCP, A2A and REST/gRPC APIs under central governance.

Framework-agnostic infrastructure for running long-running agents in production.

Platform to make AI agents and workflows durable, deterministic and explainable.