agentoath-a2a is a Python package that provides cryptographic trust infrastructure for AI agents, focusing on agent-to-agent interactions. The tool equips each agent with a unique cryptographic identity using Ed25519 keypairs and supports the generation of cryptographically signed, tamper-proof receipts for every action an agent performs. These receipts serve as a verifiable audit trail and can be independently checked without reliance on a central authority, reflecting a zero-trust approach by default.
The package is compatible with the Google Agent-to-Agent (A2A) protocol, offering features such as trust headers and ASGI middleware for agent communication. agentoath-a2a also enables trust delegation between agents, supporting configurable scope limits, expiry, and full chain verification. Trust scores are calculated based on an agent's receipt history, with adjustable decay rates, category weights, and thresholds to quantify and manage trust dynamically.
Designed to be framework-agnostic, agentoath-a2a provides native integrations for platforms such as LangChain, CrewAI, and MCP, in addition to Google A2A. It supports peer-to-peer federation, allowing organizations to share trust receipts without centralization. 0 license, and can be installed via pip for Python environments. It is intended for developers building secure, verifiable agent-based systems that require decentralized trust and auditability.
agentoath-a2a sits in PulseGate's Frameworks & SDKs category. It focuses on enabling secure and trusted agent-to-agent protocol interactions by embedding verifiable trust receipts. It is built as an open-source project for developers building agent-based systems. agentoath-a2a is open source under the Apache-2.0 license. agentoath-a2a is available on the web and the command line.
It is developed by AgentOath, and the product first shipped in 2026. PulseGate's similarity index finds few close equivalents — agentoath-a2a occupies a relatively distinct niche. Key capabilities include A2A protocol bridge, trust receipts, and agent-to-agent support.
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