Do you speak Agent? The convergence of APIs, MCP, A2A, and Agent Languages.
summary
Overview of where APIs meet agents: compares OpenAPI-style REST calls with MCP model context protocol tool calls and legacy FIPA ACL agent semantics, shows hotel-booking and search-hotels examples implemented as JSON on the wire, reports a ChatGPT‑5 experiment that partly interprets FIPA messages and initially refuses then corrects a booking request, argues semantics live either in hardcoded servers, LLMs, or explicit ontologies, finds high-volume channels need tight schemas and predicts AI‑maintained APIs that adapt encodings over time.
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chapters (9)
- 0:00Agent communication trends
- 2:12Agent communication standards
- 5:00Syntax vs semantics
- 6:25REST APIs vs MCP
- 10:39Agent languages for semantics
- 15:30Symbolic reasoning vs LLMs
- 18:19Agent-to-Agent Protocol (A2A)
- 19:42Key takeaways
- 24:13APIs and agent languages
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