ProtocolArc

About ProtocolArc

ProtocolArc A contract lab for agent protocol envelopes. Describe an MCP or A2A message shape as a versioned contract, validate real envelopes against it, and classify what changes between revisions as compatible, forward, or breaking. standard library · optional runtime · deterministic output What it is for Agent systems pass structured envelopes between tools and peers: MCP tool calls, A2A task sends, and similar JSON-RPC shaped messages. When the shape of those messages changes, older clients can break in ways that are hard to see until traffic fails.

a2a agent-protocols api-versioning compatibility contracts developer-tools dotnet json-rpc mcp model-context-protocol

Quick Facts

Stars	47
Forks	4
Language	Python
Category	MCP Server
License	MIT
Quality Score	51.8460768631138/100
Last Updated	2026-09-05
Created	2025-10-28
Platforms	mcp, python
Est. Tokens	~13k

Compatible Skills

These tools work well together with ProtocolArc for enhanced workflows:

outputguard — semantic(0.17)+complementary+rare_topics+same_lang+similar_pop+shared_platform (60%)
a2a-adapter — semantic(0.24)+complementary+same_lang+similar_pop+shared_platform (59%)
bazi-skill — semantic(0.23)+complementary+same_lang+similar_pop+shared_platform (58%)
edictum — semantic(0.15)+complementary+same_lang+similar_pop+shared_platform (55%)

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Frequently Asked Questions

What is ProtocolArc?

ProtocolArc is Contract lab for agent protocol envelopes - versioned MCP/A2A message contracts, envelope validation, and compatibility diffs (compatible/forward/breaking). Python 3 stdlib + optional .NET 9 runtime.. It is categorized as a MCP Server with 47 GitHub stars.

What programming language is ProtocolArc written in?

ProtocolArc is primarily written in Python. It covers topics such as a2a, agent-protocols, api-versioning.

How do I install or use ProtocolArc?

You can find installation instructions and usage details in the ProtocolArc GitHub repository at github.com/adroamccullinp/ProtocolArc. The project has 47 stars and 4 forks, indicating an active community.

What license does ProtocolArc use?

ProtocolArc is released under the MIT license, making it free to use and modify according to the license terms.

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