Topics / #open-standard

Open-standard projects on GitHub

Specifications and protocols openly published for anyone to implement without proprietary restrictions

As of , the most-starred Open-standard projects on GitHub are OpenAPI-Specification (31.3K stars), A2A (26.2K stars) and onnx (21.6K stars). GitHub.Locker tracks 6 Open-standard repositories with 93.3K stars combined. The fastest-growing on October 16 was harnessrouter, with +55 stars in a day.

6Projects
93.3KStars in total
+73Stars in a day
Browse in the catalog →github.com/topics/open-standard ↗

Hot right now

Most stars gained in a day · Oct 16

+55

harnessrouter

HarnessRouter/harnessrouter · ★ 3.1K

HarnessRouter is a self-hosted gateway that turns existing agent harnesses like Codex, Claude Code, Hermes, PI, and DSH into a single unified API, so a product can run tasks, stream progress, and switch harnesses without handling harness-specific engineering.

+13

A2A

a2aproject/A2A · ★ 26.2K

The Agent2Agent (A2A) protocol is an open standard that lets gen AI agents built on different frameworks and run by different companies talk to each other — discovering capabilities, negotiating how to interact, and collaborating on long-running tasks as agents, not just as tools.

+2

OpenAPI-Specification

OAI/OpenAPI-Specification · ★ 31.3K

The OpenAPI Specification (OAS) is a community-driven open standard from the OpenAPI Initiative, a Linux Foundation Collaborative Project: a standard, programming language-agnostic way to describe HTTP APIs.

+2

bips

bitcoin/bips · ★ 11K

This is the official repository of Bitcoin Improvement Proposals (BIPs) — design documents and standards for changing and extending Bitcoin, from consensus rules to wallet formats. The repo serves as both the publication medium and the permanent archive for these proposals.

The all-time top

6 projects · by stars

  1. #1 · OAI/OpenAPI-Specification

    OpenAPI-Specification

    The OpenAPI Specification (OAS) is a community-driven open standard from the OpenAPI Initiative, a Linux Foundation Collaborative Project: a standard, programming language-agnostic way to describe HTTP APIs.

    31.3K
  2. #2 · a2aproject/A2A

    A2A

    The Agent2Agent (A2A) protocol is an open standard that lets gen AI agents built on different frameworks and run by different companies talk to each other — discovering capabilities, negotiating how to interact, and collaborating on long-running tasks as agents, not just as tools.

    26.2K
  3. #3 · onnx/onnx

    onnx

    ONNX (Open Neural Network Exchange) is an open standard for machine learning interoperability — an open ecosystem and format for AI models, both deep learning and traditional ML.

    21.6K
  1. 4

    bips

    11Kbitcoin/bips · Wikitext

    This is the official repository of Bitcoin Improvement Proposals (BIPs) — design documents and standards for changing and extending Bitcoin, from consensus rules to wallet formats. The repo serves as both the publication medium and the permanent archive for these proposals.

  2. 5

    harnessrouter

    3.1KHarnessRouter/harnessrouter · Python

    HarnessRouter is a self-hosted gateway that turns existing agent harnesses like Codex, Claude Code, Hermes, PI, and DSH into a single unified API, so a product can run tasks, stream progress, and switch harnesses without handling harness-specific engineering.

  3. 6

    AgentMeasure

    218roy-tong/AgentMeasure · Python

    AgentMeasure is an open measurement layer for AI-agent usage: a free CLI and SDK that audit Codex and Claude Code session logs and verify that agent metrics and metering numbers mean what their labels claim.

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