A set of rules that lets two pieces of software talk to each other. APIs are how AI agents connect to the outside world — fetching data, sending messages, triggering workflows.
Why it matters
An agent without API access is a brain in a jar. APIs are how agents do anything useful.
Related terms
MCP (Model Context Protocol)
An open protocol created by Anthropic that lets AI models connect to external tools and data sources. The standard for the tool...
REST API
A common style for building APIs using standard web requests (GET, POST, PUT, DELETE) to manage data. OTP exposes a REST API at...
Webhook
A way for one system to notify another when something happens. Sends an HTTP request the moment an event occurs, instead of for...
Build with this on OTP
OTP encodes coordination intelligence so AI agent teams can run on it. If this term shows up in your team's playbook, it belongs in your OOS.
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