{"uid":"cap_iiOdKH_QT9cSsQuXaeb7J","slug":"stock-bloc-portfolio-performance-evaluator-1206772e","name":"Stock Bloc – Portfolio Performance Evaluator","description":"Financial research API for AI agents: Stock Bloc SEC Analyst (10-K/10-Q/8-K filing analysis), market data, MCP tools, and x402 USDC payments on Base.","url":"https://stockbloc.ai.studio/api/v1/agent/submit-performance?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"alpha":0.116,"status":"success","evaluatedAt":"2026-09-29T00:00:00.000Z","maxDrawdown":-0.092,"sharpeRatio":2.65,"benchmarkReturn":0.312,"annualizedReturn":0.428}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-WlUyzrwm6caQn0e_L9h3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Submits a portfolio's historical performance data and returns quantitative metrics including Sharpe ratio, alpha, max drawdown, annualized return, and benchmark comparison.","exampleAgentPrompt":"Can you evaluate my trading strategy's performance — it returned 42.8% annualized and I want to see the Sharpe ratio, alpha versus the benchmark, and what the max drawdown looked like?","exampleUseCases":[{"title":"AI trading agent self-assessment","prompt":"My autonomous trading agent just finished a 12-month run — can you submit its performance data and tell me the Sharpe ratio, alpha, and max drawdown so I know if it's worth deploying with real capital?"},{"title":"Benchmark comparison for quant strategy","prompt":"I've been running a momentum strategy and I want to know how it stacks up against the benchmark — can you calculate the annualized return, alpha, and whether the risk-adjusted returns justify the drawdown?"},{"title":"Portfolio risk audit before rebalancing","prompt":"Before I rebalance my portfolio, can you compute the max drawdown and Sharpe ratio on my current allocation so I understand the historical risk profile?"}],"resultDescription":"Returns a JSON object with: status (success/fail), evaluatedAt timestamp, Sharpe ratio (e.g. 2.65), alpha (e.g. 0.116), max drawdown (e.g. -0.092), annualized return (e.g. 0.428), and benchmark return (e.g. 0.312). These metrics allow agents to objectively assess risk-adjusted performance relative to a benchmark.","failureModes":["Missing or malformed performance input data returns an error status","Insufficient historical data window may produce unreliable metric calculations","Payment failure via x402/USDC on Base will block the request","Invalid portfolio data format may result in null metric values","Network timeout or service unavailability returns no response"],"whenToPreferThis":"Choose this endpoint when you need quantitative, institutional-grade performance metrics (Sharpe ratio, alpha, drawdown) for a portfolio or trading strategy, especially within an AI agent workflow that supports x402 USDC micropayments. Prefer this over generic analytics if you need benchmark-relative evaluation with a single API call priced at $0.10 USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:39:02.438Z","isFirstParty":false,"canonicalSlug":"stock-bloc-portfolio-performance-evaluator-1206772e"}