Finance & Accounting · Polymarket US + Claude
Polymarket US MCP with Claude: Regulated Prediction Market Data and Account Workflows
The short answer
Claude works with Polymarket US through the Model Context Protocol (MCP). Once connected with official API credentials, Claude can read market data, inspect order books and review positions, and prepare market actions from plain-language requests. Permissions are limited to what your organisation grants, and consequential actions can require human approval.
What is Polymarket US?
Polymarket US is the version of the Polymarket prediction market platform built for verified users in the United States. It is designed to operate under the oversight of the US Commodity Futures Trading Commission (CFTC). It offers regulated prediction market data and account functions through official API credentials. Finance teams, trading operations staff, research analysts and compliance reviewers are typical users who need timely, structured access to market information and account activity.
How Claude connects to Polymarket US through MCP
The Model Context Protocol is an open standard that lets Claude securely use other software, reading information and taking actions, with permissions the organisation controls. Think of it as a universal adapter between Claude and the tool. For Polymarket US, the connection uses an MCP server or a direct API link, authenticated with the API credentials your organisation issues.
Once connected, Claude can explore active markets, look up order books, review open positions and summarise account activity. A team member can ask in everyday language, for example, which markets in a given topic have the deepest order books this week, and receive a structured answer in seconds.
Permissions and approvals keep people in charge. Access is scoped to the minimum your workflow needs, and any action that places or changes a market position can be routed to a named approver before it is executed. Every request and response is recorded in an audit log, so your team can review what was done and why.
What you can automate
Market Research Summaries
Analysts ask Claude for a briefing on active markets within a chosen topic. Claude pulls current market data, compares prices and volumes, and produces a short summary the research team can circulate. This saves the time spent switching between screens and copying figures into documents.
Order Book Monitoring
Operations staff can set a routine check on specific markets. Claude reviews order book depth and flags unusual gaps or sudden shifts, then posts a note to the team channel. Humans decide whether any follow-up is needed.
Position Reviews
Finance controllers can ask Claude to list open positions, summarise exposure by category and highlight items that need attention before a reporting cut-off. The result is a clear, consistent view rather than a manual export.
Compliance Record Preparation
Compliance reviewers often need a dated record of account activity. Claude can compile the relevant entries into a standard template, ready for a human to check and file according to internal policy.
Trade Request Preparation
When a trader wants to act on a view, Claude can draft the proposed market action with its key terms and send it for approval. The trader confirms, and only then is the action placed, keeping a clear line of accountability.
An end-to-end workflow: Daily Market Exposure Briefing
TriggerEvery weekday at 8:00 local time, a scheduled request starts the workflow.
Claude retrieves open positions and recent account activity from Polymarket US using the API connection.
Claude pulls current order book summaries for the markets in the team's watchlist.
Claude cross-references the positions with the firm's exposure limits held in the internal finance spreadsheet.
Claude drafts a briefing that highlights positions nearing limits and markets with unusual liquidity changes.
The briefing is posted to the trading team's channel in Microsoft 365, and any proposed actions are routed to a named approver.
OutcomeTraders start the day with a single, consistent exposure briefing, and risk managers receive flagged items early. Human approval remains required for every position change. Typical teams report less time spent assembling the morning view.
How we set it up
Free Automation Audit
We review how your team uses Polymarket US today and identify the workflows that would benefit most from Claude. This session is free and comes with no obligation.
Credential and Access Design
We confirm which Polymarket US API credentials your organisation will issue, using the API key sign-in method. Access is set to least privilege, so Claude receives only the permissions each workflow needs.
Connection and Workflow Build
We connect Claude to Polymarket US through an MCP server or direct API link, then design the end-to-end workflow with your other systems such as Microsoft 365, your CRM or ERP. Approval steps are built in for consequential actions.
Testing Against Real Cases
We test the workflow using past market activity and real internal scenarios. We check accuracy, approval routing and audit logging, and adjust until the results match your standards.
Launch, Monitoring and Training
We launch with monitoring dashboards and audit logs in place, then train your team on how to use Claude, review its outputs and handle approvals. Support continues after launch.
Who benefits
- Trading Operations Lead
- Receives consistent, timely market and order book summaries without manual data gathering.
- Finance Controller
- Gets a clear view of positions and exposure ready for reporting and review.
- Compliance Officer
- Obtains structured activity records that are easier to check against policy.
- Research Analyst
- Spends less time collecting data and more time interpreting it.
Security and control
- Least-privilege API credentials scoped to the specific tasks each workflow requires.
- Named human approval for any action that places or changes a market position.
- Complete audit logs of requests, responses and approvals for internal and regulatory review.
- Testing against real past cases before launch, with ongoing monitoring afterwards.
- Clear documentation of what Claude can and cannot do, so staff understand the boundaries.
For teams in the US, UK, India and the Middle East
Organisations in the United States can use Polymarket US, which is built for verified US users under CFTC oversight, and hosting for the Claude connection can be placed in the United States. Teams in the United Kingdom and the European Union can select UK or EU hosting to meet their data requirements. Organisations in India must consider the Digital Personal Data Protection Act, 2023, and can host in India. Businesses in the Middle East, including the UAE and Saudi Arabia, can align the workflow with local data protection laws, with hosting chosen to meet those requirements. Hosting region is always selected to meet your specific obligations.
Learn more about Claude and MCP
Anthropic's AI model and assistant.
Secure links between Claude and business tools.
How engineers build and change software with Claude.
Hosted agents that run multi-step work.
The open standard Claude uses to connect to tools.
Frequently asked questions
What does the Polymarket US MCP server do?
The MCP server acts as a secure bridge between Claude and Polymarket US. It allows Claude to read approved market data, inspect order books, review positions and, where you permit it, prepare market actions. It works only with the credentials and permissions you set, and it does not give Claude access beyond those limits.
Is connecting Polymarket US to Claude secure?
Security depends on how the connection is designed. We use API key sign-in with least-privilege access, store credentials securely, require human approval for consequential actions and keep full audit logs. These measures reduce risk considerably, but no connection can be guaranteed risk-free, so we review controls with your IT and compliance teams.
What can Claude actually do with Polymarket US?
Typically, Claude can explore active markets, retrieve order book information, review open positions and summarise account activity in plain language. It can also draft proposed market actions for approval. Exactly which functions are available depends on the API access your organisation holds and the workflow we design together.
How long does setup take?
Timing varies with complexity. A focused single workflow often moves from audit to launch in a few weeks, while multi-system builds take longer. We confirm a realistic timeline during the free automation audit, once we understand your data sources and approval rules.
Which plan or permissions do I need?
You need API credentials issued by Polymarket US for your verified organisation, which are the basis of the API key sign-in method. The exact permissions depend on your account and the workflow. We check your current access during the audit and advise on anything to arrange with the provider before build begins.