Short answer: not directly, not yet. Justworks does not publish an official MCP server. A couple of third-party platforms, including StackOne and Truto, host unofficial MCP-style connectors to the Justworks API, but those route your credentials through a company that isn't Justworks and isn't Truthifi. If what you actually want is an AI assistant that can reason about your full financial picture alongside your Justworks-adjacent accounts, the practical path today is to connect your bank, brokerage and crypto accounts to Truthifi, which an MCP-capable assistant can already read.

What Justworks does

According to Justworks' own description, it is a Professional Employer Organization, or PEO, built for US small businesses. It handles payroll, benefits administration, HR tools and compliance on behalf of the companies that use it, acting as a co-employer so a small business can offer the kind of HR and benefits infrastructure usually reserved for much larger employers. For the people who touch Justworks day to day, business owners, HR administrators and the employees who log in to see pay stubs and benefits, it is a system of record for payroll and HR data, not a bank, brokerage or investment account.

Does Justworks have an MCP server or API?

There is no official Justworks MCP server. As of this writing, Justworks has not published its own Model Context Protocol server for AI assistants to connect to. Its public developer material points to a partner API rather than any MCP endpoint, which is the basis for that conclusion.

What does exist is a Partner API at public-api.justworks.com, authenticated via OAuth. According to Justworks' Partner API documentation, it exposes data such as members, payroll, paystubs and time-off. Access to this API is limited to approved partners, so it is not something an individual user can simply plug an AI assistant into on their own.

The unofficial layer looks different for a PEO than for a bank. According to the platforms' own integration listings, StackOne and Truto wrap the Justworks Partner API in MCP-style or MCP-adjacent connectors. Neither is built or endorsed by Justworks. Because Justworks acts as co-employer, the member and payroll records behind that API describe a company's staff, not just the person setting up the connector. So the question for an admin is less "is this convenient?" and more "am I comfortable giving a vendor API-level reach into my team's paystubs?" Check who operates the connector, what it stores, and what its security posture is before connecting anything.

How to connect Justworks to an AI assistant today

Given that reality, there are two distinct paths worth separating.

1. Through Justworks' own Partner API or a third-party connector. This route is aimed at approved partners and integration platforms rather than individual end users, and it is where the unofficial MCP-style connectors from providers like StackOne and Truto live. It can expose payroll, paystub and time-off data programmatically, but it requires OAuth approval and, for the unofficial connectors, a decision to trust a third party with API-level access.

2. Through Truthifi, for the accounts Truthifi can actually aggregate. Truthifi connects to banks, brokerages and crypto exchanges through Plaid, Yodlee and By All Accounts, covering 18,000+ financial institutions, according to Truthifi platform data. Justworks itself is a payroll and HR platform, not a bank or brokerage, so a Justworks account is not something Truthifi aggregates directly. What Truthifi can do is give an MCP-capable AI assistant read-only visibility into the bank, brokerage and crypto accounts where a person's pay actually lands and where their money is held and invested. That is the financial picture downstream of payroll, rather than the payroll system itself.

To set up the Truthifi path:

1. Create a free Truthifi account.

2. Connect your bank, brokerage and crypto accounts through Plaid, Yodlee or By All Accounts.

3. Authorize your AI assistant (via its MCP connection to Truthifi) using the Authorize button, never "Allow."

4. Ask your assistant questions about your connected accounts; Truthifi's read-only scope covers bank, brokerage and crypto accounts.

5. Revoke access any time from Connections → Agents → ⋯ → Revoke.

What You Can Ask

Once bank, brokerage and crypto accounts are connected through Truthifi, an MCP-capable assistant can field questions such as:

• "What's my total balance across my connected accounts right now?"

• "Did my paycheck deposit land in my checking account this week?"

• "How concentrated is my brokerage account in any single holding?"

• "What fees am I paying across my investment accounts?"

These questions are about the money, not about the Justworks HR system itself. Truthifi cannot tell you what Justworks shows you about your benefits elections or time-off balance, because Justworks is not an account Truthifi connects to.

With & Without Truthifi

Without Truthifi: An AI assistant has no way to see your bank or brokerage balances. The only route into Justworks data itself is the Partner API or an unofficial third-party connector. Both are built for approved partners and integration platforms rather than a single end user wiring up their own assistant.

With Truthifi: An MCP-capable AI assistant gets read-only visibility into the bank, brokerage and crypto accounts connected to Truthifi. These are the accounts where payroll actually deposits and where money is invested, and the user doesn't hand credentials to a third-party connector platform.

How Truthifi Can Help

Truthifi doesn't aggregate Justworks itself, and this page won't pretend otherwise. What Truthifi does is give your AI assistant a read-only, 24/7-monitored view of the bank, brokerage and crypto accounts your Justworks paycheck and benefits ultimately touch. According to Truthifi platform data, that view includes 130+ automated diagnostics run across your connected accounts, with a 99.7% accuracy figure, and your bank credentials never pass through Truthifi. Security here is structural rather than a promise: access is read-only, handled through established aggregators, and revocable from Connections → Agents → ⋯ → Revoke. Justworks manages your payroll and HR. Truthifi is the complement: the place your AI assistant looks to understand what actually happens to that money once it lands.

Truthifi is not an investment adviser and doesn't give investment, tax or legal advice.

FAQ

Does Justworks have an official MCP server? No. Justworks has not published an official MCP server. Only unofficial third-party platforms, such as StackOne and Truto, host MCP-style connectors built on top of Justworks' Partner API.

Is the Justworks API open to anyone? No. According to Justworks' Partner API documentation, the API at public-api.justworks.com uses OAuth authentication and is limited to approved partners, not individual end users.

Can Truthifi connect directly to my Justworks account? No. Justworks is a payroll and HR platform, not a bank, brokerage or crypto exchange, so it isn't one of the account types Truthifi aggregates. Truthifi connects to the bank, brokerage and crypto accounts tied to your finances instead.

Should a Justworks admin route team payroll data through StackOne or Truto? Only after vetting the vendor. Because Justworks is a co-employer, a connector on its Partner API can reach your team's payroll and paystub records, and those keys sit with a company that is neither Justworks nor Truthifi. Review each platform's security posture first.

What can my AI assistant actually see if I use Truthifi instead? It can see the bank, brokerage and crypto accounts you connect through Plaid, Yodlee or By All Accounts, read-only, including balances and (on paid Monitoring plans) fee breakdowns and concentration data.

Read Next

• Is Plaid safe? A guide to how Truthifi's aggregators work

• Is Yodlee safe? A guide to how Truthifi's aggregators work

• What is an MCP server? A plain-language explainer

• The lifetime fee calculator: see what fees are costing your portfolio

• More provider MCP guides from Truthifi

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Payroll is where the money trail starts, not where it ends. Justworks records what you were paid; the more useful question for an AI assistant is what that pay does next, and that is the half of the trail Truthifi can show it.