Python A2A is a powerful, easy-to-use library for implementing Google's [Agent-to-Agent (A2A) protocol](https://google.github.io/A2A/). It enables seamless communication between AI agents, creating interoperable agent ecosystems that can collaborate to solve complex problems.
active 2025-04-10 → 2026-07-03 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 450 days from 2025-04-10 to 2026-07-03. Pushes: 36 total, peak 16 in a day. Pull requests: 15 total, peak 3 in a day. Issues: 46 total, peak 7 in a day. Comments: 53 total, peak 11 in a day. Stars: 490 total, peak 76 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| themanojdesai | 83 | 36 | 5 | 26 |
| writetosudeepto | 9 | 0 | 3 | 4 |
| r00t4dm | 6 | 0 | 0 | 3 |
| 0xrushi | 5 | 0 | 2 | 1 |
| LiJiahao-Alex | 3 | 0 | 0 | 2 |
| codeninja | 3 | 0 | 0 | 2 |
| jayasooryantm | 2 | 0 | 0 | 1 |
| insanesac | 2 | 0 | 0 | 2 |
| AndItDontFade | 2 | 0 | 0 | 0 |
| sachin-techstax | 2 | 0 | 0 | 1 |
| x42en | 2 | 0 | 1 | 1 |
| lixy910915 | 2 | 0 | 0 | 2 |
| Linux2010 | 2 | 0 | 1 | 1 |
| failsafesecurity | 1 | 0 | 0 | 1 |
| Joshua-Medvinsky | 1 | 0 | 0 | 1 |
| newUserForTesting | 1 | 0 | 0 | 0 |
| wangsiyu666 | 1 | 0 | 0 | 0 |
| pjt3591oo | 1 | 0 | 1 | 0 |
| vietnv-aixblock | 1 | 0 | 0 | 0 |
| nicholas-johnson-techxcel | 1 | 0 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#92failsafesecurity2026-07-03 02:26fix: replace CORS wildcard with explicit origin allowlist
- Issue comment#91Joshua-Medvinsky2026-05-24 01:36fix: add optional API key authentication to all mutating HTTP endpoints
- Issue#84codyz1232026-03-07 22:26Integration idea: Schelling Protocol for agent discovery & coordination
- Issue#83magicbrighter2025-12-10 10:24Add Unified HTTP Request Path Prefix for a2a Server
- Issue#80harshays982025-09-09 08:30How to pass timeout parameters if an agent taking time to respond
- Pull request#792qov3b2025-09-07 09:15
- Issue comment#74themanojdesai2025-09-06 08:17MCPToolConversionError: Failed to get tools from MCP server: 404
- Issue comment#66themanojdesai2025-09-06 08:16Fail to connect with A2A demo/ui
- Issue#66themanojdesai2025-09-06 08:16Fail to connect with A2A demo/ui
- Issue comment#66themanojdesai2025-09-06 08:14Fail to connect with A2A demo/ui
- Issue#77themanojdesai2025-09-06 08:13Not fully compatible with A2A
- Issue comment#77themanojdesai2025-09-06 08:13Not fully compatible with A2A
- Issue comment#77themanojdesai2025-09-06 08:12Not fully compatible with A2A
- Issue comment#66taoari2025-08-31 07:44Fail to connect with A2A demo/ui
- Issue comment#74JayantSeth2025-07-22 16:52MCPToolConversionError: Failed to get tools from MCP server: 404
- Issue comment#50ghalibansari2025-07-18 17:45langgraph can use A2A?
- Issue comment#74furas2025-07-18 11:36MCPToolConversionError: Failed to get tools from MCP server: 404
- Issue#74JayantSeth2025-07-18 04:15MCPToolConversionError: Failed to get tools from MCP server: 404
- Issue comment#66insanesac2025-06-13 06:32Fail to connect with A2A demo/ui
- Issue#67shriyanskapoor2025-06-10 09:39How to support langgraph's short term memory?
- Issue comment#66tobegit3hub2025-06-09 23:11Fail to connect with A2A demo/ui
- Issue comment#60themanojdesai2025-06-09 15:32connect to other A2A agent with python-a2a sdk issue.
- Issue#58themanojdesai2025-06-09 15:32Cannot connect from external google/A2A client to A2AServer of this framework
- Issue#65leotraven2025-06-09 15:27FastAPI app that serves as MCP server (used by FastMCP) does not expose proper endpoint
- Issue#64rgstephens2025-06-08 15:19Add LiteLLM Support
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 490 stars here means stars gained during the window, not the repo's star count.