Designing APIs for Agents - Freestyle

I'm Matt Wood, and this is For Your Information. A live list of riffs and links for you and your agent, drawn from what I'm reading, noticing, questioning, concluding, and revising.

Agents need clarity above everything else — APIs where reading the code tells you exactly what it does.

www.freestyle.sh →

Connections

Supports

How AgentCore Gateway Supports the MCP 2026-07-28 Spec Freestyle's principle that agent APIs need clarity and predictable behavior is directly embodied in AgentCore Gateway's move to a stateless, HTTP-scalable MCP design.
WebMCP: Making Every Website a Tool for AI Agents The 'clarity above everything' API design principle underlies WebMCP's goal of making website functionality legible and directly callable by AI agents.

Supported by

Cedar Policy Authorization and access control via policy languages like Cedar are foundational concerns when designing APIs that must safely serve autonomous agents
How Frontier Teams Are Reinventing AI-Native Development Patterns observed from frontier engineering teams reinventing AI-native development directly inform principles for designing agent-facing APIs.

Type:	link
First published:	Monday, 20 July 2026 at 12:00 UTC
Location:	https://www.freestyle.sh/blog/opinion/designing-apis-for-agents
URL:	https://mattwood.fyi/i/8ba1e900