BeliefState

BeliefState is a research and recordkeeping tool that supplies timestamped investor beliefs, exact excerpts, and citations for AI systems. It tracks revisions and outcomes tied to specific securities, maintaining a leaderboard and offering a Discord community. The service records source publications with claim details like direction, horizon, confidence, and reasoning, serving as a data layer for AI-assisted trading research rather than facilitating trading itself.

The platform offers a Starter annual plan for $149 billed upfront, which includes 1,000 credits per month and tracks up to 5 actively tracked companies. A Pro plan is available for $249 billed annually, providing 3,000 credits per month and tracking 25 companies. Both plans come with a one-time free credit bonus when subscribing annually.

Users can connect their AI clients through Model Context Protocol (MCP) or use the REST API and MCP directly. The system allows AI to inspect attributed reasoning, dated sources, stated risks, and available outcomes without needing a new research terminal. Connection and coverage discovery are provided free to help users choose a plan.

The service provides a weekly stock pick delivered by email as part of its research membership, which is planned to launch soon. Full investment research access includes exploring the investment case, price targets, and upside potential where available. Users can also follow how a case develops over time through the dashboard.

The platform allows users to compare hypothetical stock returns with SPY over the same period to inspect source and entry assumptions. It extracts data from top analyst research, linking it to evidence and making it ready through the API and MCP. The system processes information before an agent asks, providing price targets and forecasts.

The company is located in Wyoming, as indicated by its formation as a Wyoming limited liability company with filing ID 2026-002101865. It was formed on October 8, 2026, and the company identification was updated on October 9, 2026. The website domain is beliefstate.app.

To get started, users can connect a supported AI client through MCP or use the API in their own software. Connection and coverage discovery are free, allowing users to check which stocks and sources are covered before choosing a plan. The system handles access-denied requests by asking users to confirm the connected account and retry once access is available.

The company states it is built by Ant, who started BeliefState independently to make investing easier by bringing useful research directly to people's AI. The goal is to make agentic trading accurate and dependable enough for people to feel confident relying on their own trading agent.

The platform allows users to request admission and brings BeliefState into models they already use, such as OpenAI, Claude, and Codex. It supports custom MCP connections across supported AI clients with a read-only connection. The system processes information quickly, with examples showing response times around 22 ms.

The service provides a way to compare investor theses, price targets, and risks before trading. It extracts data from top analyst research, linked to evidence, and makes it ready through the API and MCP. The system helps users match filings, screeners, financial data, and analyst research to a task.

The platform includes a feature to inspect the source and entry assumptions behind stock calls. It allows users to see how stock calls played out and compare hypothetical returns with SPY over the same period. Users can also view the reasoning behind a view, including expected catalysts, risks, timeframes, and what would change the analyst's mind.

The company offers a public record correction process where users can dispute a statement by providing the record URL, disputed statement, original source, and exact timestamp. Privacy, security, or legal requests require affected account or URL, requested scope, supporting evidence, and a safe contact method.

The platform includes a feature to track changes in a thesis, such as when a position is strengthened, weakened, or abandoned. It also records the change history and provides a way to see what changed over time. The system ensures coverage and missing evidence stay explicit.

The official website of BeliefState is beliefstate.app.

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