Accelo

Accelo is a cloud-based service operations automation (ServOps) platform that unifies project management, client relationship management (CRM), time tracking, retainers, quotes, billing, and invoicing for professional services businesses. The Accelo REST API exposes resources such as companies, contacts, activities, tasks, jobs (projects), milestones, invoices, contracts, and webhooks using OAuth 2.0 authentication scoped to a deployment subdomain.

1 APIs 0 Features

Professional Services AutomationProject ManagementCRMTime TrackingInvoicingService Operations

APIs

Accelo REST API

REST API for Accelo with CRUD access to companies, contacts, activities, tasks, projects (jobs), milestones, invoices, contracts, quotes, prospects, time entries, staff, and web...

Resources

Sources

aid: accelo
name: Accelo
description: >-
  Accelo is a cloud-based service operations automation (ServOps) platform that
  unifies project management, client relationship management (CRM), time
  tracking, retainers, quotes, billing, and invoicing for professional services
  businesses. The Accelo REST API exposes resources such as companies, contacts,
  activities, tasks, jobs (projects), milestones, invoices, contracts, and
  webhooks using OAuth 2.0 authentication scoped to a deployment subdomain.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Professional Services Automation
  - Project Management
  - CRM
  - Time Tracking
  - Invoicing
  - Service Operations
url: >-
  https://raw.githubusercontent.com/api-evangelist/accelo/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
  - aid: accelo:accelo-api
    name: Accelo REST API
    description: >-
      REST API for Accelo with CRUD access to companies, contacts, activities,
      tasks, projects (jobs), milestones, invoices, contracts, quotes,
      prospects, time entries, staff, and webhooks. Uses OAuth 2.0 (service,
      web, and installed application grants) with a Bearer access token and
      deployment-scoped subdomain.
    humanURL: https://api.accelo.com/docs/
    baseURL: https://{deployment}.api.accelo.com/api/v0
    tags:
      - Professional Services Automation
      - Project Management
      - CRM
      - Time Tracking
      - Invoicing
    properties:
      - type: Documentation
        url: https://api.accelo.com/docs/
      - type: Authentication
        url: https://api.accelo.com/docs/#authentication
common:
  - type: Website
    url: https://www.accelo.com
  - type: Documentation
    url: https://api.accelo.com/docs/
  - type: Sign Up
    url: https://www.accelo.com/signup/
  - type: Pricing
    url: https://www.accelo.com/pricing/
  - type: Login
    url: https://app.accelo.com/login/
  - type: Support
    url: https://help.accelo.com/
  - type: Blog
    url: https://www.accelo.com/resources/blog/
maintainers:
  - FN: Kin Lane
    email: [email protected]