BROWSER USE - Browser Use Agents: give Browser Use a task and receive completed work. API V4 is current for new integrations. - Browser Infrastructure: connect your agent or automation to managed browsers through SDK, REST, or CDP. Starts at $0.02/browser-hour. - Developer tools: Open Source, Browser Harness, SDK, and MCP support the two products above. [Developer Index](https://browser-use.com/index.md) [Product Map](https://browser-use.com/llms.txt) [Full Product Context](https://browser-use.com/llms-full.txt) [Pricing](https://browser-use.com/pricing.md) [Cloud Docs](https://docs.browser-use.com/cloud/quickstart) [Open Source Docs](https://docs.browser-use.com/open-source/introduction) --- # Fin-Esse: 45 WebMCP tools for AI agents ![](https://www.google.com/s2/favicons?domain=fin-esse-beta.vercel.app&sz=96) Finance · fin-esse-beta.vercel.app ## Fin-Esse Financial planning workspace. Agents can track loans, simulate prepayments, analyze portfolio allocation and manage budget goals. [Open fin-esse-beta.vercel.app](https://fin-esse-beta.vercel.app/) ## Ask an agent to - Simulate paying an extra $200 a month on my car loan - Show my portfolio allocation and risk score - Check if my savings goal is feasible ## 45 tools - `advisor_argue_as` Get the strongest honest case one specific stance would make, so you can voice that side of a debate. Stances are 'growth' (assumes 13% returns, treats cheap debt as leverage) and 'preservation' (assumes 7%, prices… stance: string, amount: number, horizonMonths: number? - `advisor_assumptions` List every planning assumption the app uses -- expected returns and volatility per asset class, and the user's assumed portfolio return. Call this when the user asks why a number is what it is, or before presenting… - `advisor_begin_whatif` Open a sandboxed what-if branch. While a branch is open, every write tool changes only the sandbox, never the user's real profile, so you can explore freely -- apply prepayments, rebalance, reprice holdings -- and… name: string - `advisor_create_handoff_link` Package the user's entire financial position into a shareable link so another person's AI agent can pick it up and continue the analysis in their own browser session. Use when the user wants a second opinion from a… from: string, note: string? - `advisor_explain_number` Explain how a specific headline figure was derived, showing the inputs and the formula. Supported figures: net\_worth, surplus, emi\_burden, risk\_score, emergency\_runway. Use when the user challenges or asks about a… figure: string - `advisor_horizon_projection` Project net worth forward over a horizon, showing how debt runs down and investments compound under current behaviour. Use to make a recommendation concrete. horizonMonths: number? - `advisor_list_stances` List the advisor stances available for a second opinion and the assumptions each one holds. Call this if you need to know what positions can be argued before staging a debate. - `advisor_load_handoff_link` Load a financial position that someone else shared with you as a handoff link. Paste the whole URL. This replaces the profile currently on screen with theirs, so you can analyse their numbers instead of your own. url: string - `advisor_net_position` Give the whole balance sheet at once: investable portfolio, non-investable real assets such as a home, cash, total debt, net worth, debt-to-assets, monthly EMI and monthly surplus. The fastest way to orient yourself… - `advisor_prepay_vs_invest` THE cross-domain question: should a given amount of spare cash go towards prepaying a loan or into the portfolio? Compares every active loan against the assumed portfolio return by simulating both paths month by month… amount: number, horizonMonths: number? - `advisor_recommendations` Generate a prioritised action list synthesised across loans, portfolio and budget, each item citing which tools produced its evidence and what the impact would be. Use to answer 'what should I do' or to close out an… - `advisor_risk_exposure` Score the user's overall financial fragility out of 100 by combining debt service burden, leverage, emergency runway, portfolio risk and savings rate. Reads loans, portfolio and budget together. Use when asked 'how… - `advisor_save_scenario` Snapshot the current financial picture under a name so it can be compared against others later. Use to capture a branch worth remembering before discarding it. name: string, note: string? - `advisor_second_opinion` Run the same decision through two deliberately different advisors -- a growth stance assuming 13% returns and a capital-preservation stance assuming 7% -- and report where they agree, where they diverge, and the exact… amount: number, horizonMonths: number? - `advisor_shared_position_info` Report whether the position currently loaded came from someone else's handoff link, who shared it and what note they attached. Call this at the start of a session so you know whose finances you are actually looking at. - `advisor_stress_test` Stress-test the entire financial picture against a combined shock: months without income, a named market event, and/or an interest rate rise, all at once. Reports whether the plan breaks and at what point. Use for… jobLossMonths: number?, marketShock: string?, rateHikeBps: number? - `budget_add_expense` Add a recurring monthly expense. Mark it essential if it cannot be cut in a crisis. name: string, amount: number, essential: boolean? - `budget_add_goal` Add a savings goal with a target amount and a deadline in months. name: string, targetAmount: number, targetMonths: number, savedSoFar: number? - `budget_goal_feasibility` Assess whether the user's savings goals are actually reachable given their current monthly surplus, and flag which ones collide. Use when the user asks whether they can afford a goal, or before recommending they… - `budget_remove_expense` Remove a recurring expense by id or name. Use when the user stops paying for something, which frees up monthly surplus. expenseId: string - `budget_remove_goal` Remove a savings goal by id or name. Use when a goal has been met, abandoned, or was entered in error. goalId: string - `budget_set_cash_reserve` Set the liquid cash the user holds outside their investments. This is what funds prepayments and emergencies. cashReserve: number - `budget_set_expected_return` Set the assumed long-run annual portfolio return used by goal and prepay-vs-invest maths. Use when the user wants to test a more or less optimistic assumption. expectedReturnPct: number - `budget_set_income` Set the user's monthly take-home income. Everything downstream -- surplus, savings rate, debt-service ratio and goal feasibility -- is derived from this, so set it before giving cashflow advice. monthlyIncome: number - `budget_summary` Show monthly income, essential and discretionary spending, total EMI outflow, the resulting surplus, the savings rate and how many months of emergency runway the cash reserve buys. Call this for any question about… - `loan_add` Add a new loan to the user's profile. Use this when the user describes a debt they hold. Returns the computed EMI and the new loan's id. name: string, principal: number, annualRatePct: number, termMonths: number, kind: string?, monthsPaid: number? - `loan_amortisation` Show the month-by-month interest/principal split for a loan already in the profile. Use to explain where the money is actually going. loanId: string, months: number?, fromMonth: number? - `loan_compare_offers` Compare two or more loan offers on total cost including processing fees, and identify the cheapest. Use when the user is shopping for a loan or considering a refinance. offers: array - `loan_emi_calculator` Compute the EMI, total interest and total repayment for hypothetical loan terms, without touching the user's profile. Use for 'what would the EMI be if...' questions. principal: number, annualRatePct: number, termMonths: number - `loan_list` List every loan in the user's profile with its EMI, outstanding balance, months remaining and interest still to be paid. Call this first whenever a question involves debt, and before calling any other loan\_\* tool, so… - `loan_propose_prepayment` Propose actually applying a prepayment to the user's profile. This does NOT take effect immediately: it creates a proposal card the human must approve or reject in the app. Use this after loan\_simulate\_prepayment when… loanId: string, lumpSum: number, reason: string? - `loan_remove` Remove a loan from the profile by its id. Use when a loan was entered by mistake or has been closed. loanId: string - `loan_simulate_prepayment` Simulate paying a lump sum and/or a permanent extra monthly amount into a loan, holding the EMI constant. Returns months saved and interest saved. This only simulates -- it does not change anything. To actually apply… loanId: string, lumpSum: number?, extraMonthly: number? - `market_apply_conditions` Take what you found in your research and work out what it means for this specific person — every aspect of it. Give one entry per asset class with the percentage move you observed and a short note on why. Returns the… conditions: array - `market_last_read` Report the market conditions most recently applied in this session, if any — what was observed, when, and the resulting move. Use it to avoid re-researching something you already looked up a few minutes ago. - `market_research_brief` Get a research brief telling you exactly what market news to go and look up for THIS user's holdings, ranked by how much each exposure actually matters to them. The page holds no market data and fetches nothing — use… - `portfolio_add_holding` Add an investment holding to the portfolio. Use when the user tells you about something they own, so allocation and risk maths include it. symbol: string, name: string, assetClass: string, units: number, price: number - `portfolio_add_real_asset` Record a non-investable asset such as a self-occupied home. It counts towards net worth but is deliberately excluded from allocation, rebalancing and concentration risk, because you cannot sell a third of the house… name: string, value: number - `portfolio_allocation` Break the portfolio down by asset class, with the weight of each, the blended expected return, the volatility and a 0-100 risk score. Use this to answer 'how is my portfolio positioned' or before recommending a… - `portfolio_list` List every investment holding with its units, price, current value and asset class. Call this before any other portfolio\_\* tool so you know which holding ids exist. - `portfolio_plan_rebalance` Compute the buys and sells needed to move the portfolio to a target allocation by asset class. Targets are normalised, so they need not sum to 100. This only plans -- call portfolio\_propose\_rebalance to actually apply… target: object - `portfolio_propose_rebalance` Propose actually rebalancing the portfolio to a target allocation. This does NOT take effect immediately: it creates a proposal card the human must approve or reject. Use after portfolio\_plan\_rebalance when the user… target: object, reason: string? - `portfolio_remove_holding` Remove a holding from the portfolio by id or ticker symbol. Use when the user has sold a position or entered it in error. holdingId: string - `portfolio_simulate_market_event` Simulate a named market event (equity crash, rate spike, crypto winter, broad risk-off, gold rally) against the portfolio and report the damage per holding. Read-only. event: string - `portfolio_update_price` Update the current price of a holding, for example to reflect a live quote the user gives you. holdingId: string, price: number Tools 45 Registered with JavaScript Scan finished Oct 19, 2026 Tool names and descriptions are what fin-esse-beta.vercel.app/ registered when we loaded it in Chrome 154 on Browser Use Cloud. The summary and the “ask an agent” lines are AI-written from them. To call the tools yourself, see [Chrome’s WebMCP docs](https://developer.chrome.com/docs/ai/webmcp). 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