StackOne

StackOne is an AI-powered embedded integration platform as a service (iPaaS) that provides Unified APIs for SaaS products and AI Agent Actions. It enables teams to ship hundreds of integrations in days by normalizing data models across 200+ enterprise SaaS providers including Workday, BambooHR, Salesforce, Greenhouse, and more. StackOne covers HRIS, ATS, CRM, LMS, IAM, Marketing, Ticketing, Messaging, Documents, and Screening categories.

Website: https://www.stackone.com/ Documentation: https://docs.stackone.com/ GitHub: https://github.com/StackOneHQ

Tags

• Integrations, iPaaS, Unified API, Human Resources, Recruitment, CRM, Marketing

APIs

StackOne Unified API

Covers platform account management, HRIS, ATS, CRM, and Marketing unified endpoints.

• Base URL: https://api.stackone.com
• Authentication: Basic auth with API key as username

OpenAPI Specifications

Spec	Path
StackOne Unified API	openapi/stackone-openapi.yml

Spectral Rules

Ruleset	Path
StackOne API Rules	rules/stackone-rules.yml

Naftiko Capabilities

Shared Definitions

API	Path
StackOne API	capabilities/shared/stackone-api.yaml

Workflow Capabilities

Workflow	Description	Path
People Operations	HRIS + ATS unified — employees, time-off, candidates, jobs, applications	capabilities/people-operations.yaml
Customer Engagement	CRM + Marketing unified — contacts, campaigns, templates	capabilities/customer-engagement.yaml

JSON Schema

Schema	Path
Employee	json-schema/stackone-employee-schema.json
Candidate	json-schema/stackone-candidate-schema.json

JSON Structure

Structure	Path
Employee	json-structure/stackone-employee-structure.json

JSON-LD

Context	Path
StackOne Context	json-ld/stackone-context.jsonld

Examples

Example	Path
List Employees	examples/stackone-list-employees-example.json

Vocabulary

Vocabulary	Path
StackOne Vocabulary	vocabulary/stackone-vocabulary.yml

Timestamps

• Created: 2025-06-05
• Modified: 2026-05-02