Everything / AI agents / Agent2Agent (A2A)
Agent2Agent (A2A) Emerging
On TutorHero's Everything Index, Agent2Agent (A2A) is emerging on GitHub: 0.24 of every 10,000 new public repos over the last three months (241 a month), 4x vs a year ago. The 12-month forecast says rising (+55%). By the end of 2032, lines in the same state ended between 0.01x and 2.5x of where they started (median 0.54x).
Since 2019, and the range to 2032
New repos per 10,000 (3-month average, log scale)12-month forecastRange to 2032: middle half and 90% of past similar lines
The range is not a forecast of this line: it is what GitHub lines in the same state (more than doubled its share of new repos in a year) did 1 to 5 years later, 2019 to 2026, applied to today's level. Past 5 years it is stretched, not measured. Checked out of time (learned before 2022, scored after), 71% of outcomes landed inside the 90% range, so read it as wide. Open it in the Everything chart.
Week by week
New public repos with the a2a tag each week (Monday to Sunday, UTC). The outlined bars, last week included, are still filling in, as tags are often added days after a repo is created, so their height will grow a little. "Against the field" divides the change by what the typical tag did, so a wave that lifts every tag does not count. Hover for the numbers.
Built vs talked about
Each line is its own share (of all new GitHub repos, all Hacker News stories, all English Wikipedia views, all new stars on the repos we track), shown as a share of its own peak, so the timing and shape compare even though the units differ. Hover for the counts. Tap a name to hide or show a line.
What it means
- Worth learning now: Agent2Agent (A2A) is emerging, 4x share of new GitHub repos vs a year ago.
- Start by reading diegosouzapw/OmniRoute (+13.0k stars in 3 months) and wang2122/sprix-sage-router (+1.6k stars in 3 months).
- People to follow: Diego Rodrigues de Sa e Souza, EvoMap, Mozilla.ai.
- Builders and attention both rising: new repos 4x, attention 5x in a year.
- 28.2 new stars per new repo over 3 months, vs 8.50 for the typical trend: more demand per project than most fields.
- The 12-month forecast for its share: +55% (Rising).
- History: of past GitHub lines that more than doubled its share of new repos in a year, 61% had a smaller share 3 to 5 years later and 8% at least doubled.
- Attention: 1.41% of new stars on the repos we track, 5x in a year.
- Hacker News: 4 stories a month, +9% share in a year.
- Not investment advice: this measures what people build on GitHub, not any company.
- Most-starred tools here lately: diegosouzapw/OmniRoute (vouched), wang2122/sprix-sage-router.
- The field is emerging, so expect new tools and fast changes; pin versions.
Repos carrying it now
People building it
Diego Rodrigues de Sa e SouzaCreator of OmniRoute, an open-source AI gateway.Influence 80
EvoMapEvoMapInfluence 18
Mozilla.aiDeveloping open-source tools for LLMs and agents.Influence 51
Adrian Valeai-boostInfluence 63
ScaleData platform for AI and AI agent environments.Influence 26
Oscar Maderaoscarbol09Influence 17More in AI agents
Questions
Is Agent2Agent (A2A) growing on GitHub?
Yes. Its share of all new public GitHub repos is 4x vs a year ago and +10% over the last three months (Sep 2026). Phase: Emerging.
How many new Agent2Agent (A2A) repos are created each month?
About 241 new public repos a month carry the a2a tag (three-month average to Sep 2026), or 0.24 of every 10,000 new repos.
What will Agent2Agent (A2A) look like in 2032?
Nobody knows, and we say how much. Of past GitHub lines that more than doubled its share of new repos in a year, the middle half had between 0.14x and 1.27x of their share 3 to 5 years later, and 61% ended smaller.
Not investment advice. Measurements of what people build and star on GitHub, a statistical forecast, base rates and a model's reading of them. Nothing here is about any company's revenue, valuation or stock.