Dev argues MCP is unnecessary: hand agents an API key and they'll get the job done
sull · x · 2026-09-11
- Developer jescalan questions the need for elaborate agent-to-API protocols like MCP: all that code and specs exist just so agents can fetch data from APIs.
- His argument: APIs and API keys have been around forever and work great — point the agent at docs or an OpenAPI spec, hand it a key, done. No new protocols, UIs, or URLs required.
- He rebuts common objections: permission limiting is standard in API key management; periodic expiry/re-auth is also possible with keys if you really want.
- The thread is a notable pushback in the coding-agent ecosystem debate over whether dedicated agent protocols are solving a non-problem.
More from coding & agent
- xAI to livestream Grok Bot building an entire company from scratch, Sept 15-17 — Polymarket · 2026-09-11
- Astra becomes first AI to reach Minecraft's Nether fortress—and shows 'frustration' — Promptmethus · 2026-09-11
- Using Codex live voice to drive iPhone Mirror for competitive research — yihui_indie · 2026-09-11
- Codex cybersecurity work needs the Daybreak model to avoid safety-guardrail blocks — HankYeomans · 2026-09-11
- OpenAI launches GPT-Live-1 voice agent API, and running it 24/7 costs $72/day — gabrielchua · 2026-09-11
- SkillUI: open-source CLI reverse-engineers any site's design system for Claude Code — tom_doerr · 2026-09-11