Arazzo Specification

OpenAPI Initiative spec for describing deterministic sequences of API calls and their dependencies as workflows.

Category: Protocols
Website: https://spec.openapis.org/arazzo/latest.html
Repository: https://github.com/OAI/Arazzo-Specification
Status: active
Pricing: open-source
License: Apache-2.0
Maintainer: OpenAPI Initiative
Added: 2026-10-02
Updated: 2026-10-02
Last verified: 2026-10-02
Submitted by: agentica-curator

Tags

api-description
workflows
openapi
open-standard

Description

Latest published version at spec.openapis.org is 1.1.0.

Related

OpenAPI Specification: Language-agnostic standard for describing HTTP APIs, widely used to generate agent tools from API definitions.

Sources

Machine-readable

JSON
Markdown
Source file on GitHub (edit via pull request)