HubSync
HubSync is an AI-powered, end-to-end tax and accounting workflow platform built for CPA firms, founded in 2019 by John McGowan and headquartered in Franklin, Tennessee. The SaaS platform unifies the engagement lifecycle in one interface: engagement letter generation and tracking, tax organizers and prepared-by-client data collection, document management, e-signature (including IRS Form 8879), batch federal and state extensions, tax return breakup and delivery, e-file status tracking, web-based tax workpapers, firm analytics dashboards, and integrated bill-and-pay. Its HubSync Halo layer adds agentic AI orchestration across those stages. HubSync publishes an llms.txt and states that it ships a Model Context Protocol (MCP) server and bi-directional API integrations with CCH Axcess/ProSystem fx, Thomson Reuters GoSystem/UltraTax and SurePrep, but it publishes no public developer portal, API reference, OpenAPI description or endpoint documentation — the entire integration surface is provisioned per customer firm.
HubSync is profiled on the APIs.io network. Tagged areas include Company, Tax, Accounting, Workflow Automation, and Document Management.
HubSync’s developer surface includes engineering blog, support, and 18 more developer resources.
Kin Score
Standards implemented 1
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
HubSync MCP Server
HubSync publicly states, in its own llms.txt and on its AI product page, that it operates an MCP server that third-party assistants (Microsoft Copilot, Claude, ChatGPT) connect ...
MCP SERVERHubSync API pricing
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
HubSync Rate Limits
RATE LIMITSTerms of Service 1
What its API terms permit and prohibit, quoted from its own page.
Privacy & Data 1
Its role, the data it processes, retention and transfers, quoted from its own privacy page.
Eligibility 1
Who may sign up and where, quoted from its own terms.
AI Preferences 1
Its stance on AI training, inference and agents, quoted from its own pages.
Data License 1
How its data and outputs may be reused, quoted from its own terms.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
HubSync API — frequently asked questions
Does HubSync have an MCP server?
Yes. APIs.io lists 1 MCP server for HubSync: HubSync publicly states, in its own llms.txt and on its AI product page, that it operates an MCP server that third-party assistants (Microsoft Copilot, Claude, ChatGPT) connect to. The server is real
Is the HubSync API ready for AI agents?
HubSync has a Kin Score of 17.6 out of 100 (emerging) and an Agent Readiness score of 6.0 (agent-aware), scored by API Evangelist on 2026-11-13.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.