# Introducing Rankly Protocol Tracker

> A live feed of merged pull requests, releases, and spec changes across the open-source protocols shaping agentic commerce.

**Published:** 2026-05-18
**Category:** Product
**URL:** https://www.tryrankly.com/blogs/introducing-protocol-tracker

## In this article

1. Why this is required
2. The protocols we watch, grouped into Commerce, Payments, Connectors, Discovery

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Read the full article with screenshots and the live tracker at [https://www.tryrankly.com/blogs/introducing-protocol-tracker](https://www.tryrankly.com/blogs/introducing-protocol-tracker).

**Keywords:** Protocol Tracker, agentic commerce, ACP, UCP, AP2, MCP, A2A, x402, MPP, NLWeb, WebMCP, llms.txt, Web Bot Auth, L402, Visa TAP, Verifiable Intent