Why hackers moved from A2A to MCP
1 hacker described this switch in public comments. Their words, with links to the originals.
What hackers said about the move
“for the most part, it's back to Agent <> MCP now”thallavajhula, 2026-06-18original comment ↗
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A2A vs MCP
| A2A | MCP | |
|---|---|---|
| Hackers who recommend | 1 | 2 |
| Hackers who criticize | 0 | 0 |
| Moved away from it | 1 | 1 |
| Moved to it | 1 | 1 |
Counts are distinct hackers in the sampled comments, not market share.
Criticism of A2A
No further criticism of A2A captured yet.
Praise for MCP
“right now there is no alternative to MCP.”locknitpicker, 2026-09-21original comment ↗