Kapitol.ai vs OptionSpace

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Kapitol.ai compared with OptionSpace
Detail	Kapitol.ai	OptionSpace
What it does	Track disclosed congressional stock trades with curated research, Insider Scores and alerts	Volatility data and research tools powered by a market-maker-grade fitting and pricing engine
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Paid	Freemium
Pricing	Monthly: $35/month; Yearly: $300/year (save $120); 3-Year: $600 every 3 years (save $660). 7-day trial for $1.	Free sample plan with no card required. Retail subscription available for individual personal use in the United States with daily limits on API credits. Institutional plans available at contact pricing for any business use with annual licenses invoiced monthly via ACH or wire. Higher-frequency data
Key features	Congressional stock disclosure tracking Insider Scores for trades Searchable trade explorer Real-time P&L tracking against S&P 500 Email alerts for new signals Politician and company profiles Copy-trade calculator Mobile app for iOS and Android Congress Trading API for developers Committee and bill context	Fitted volatility surfaces with bid-ask-weighted curves across every expiration Accounts for American-style options with early exercise, discrete dividends, and implied borrow rates One-minute granularity historical data across 140+ symbols spanning 10 years Realized volatility calculations from 385 intraday returns per day Vol Screener, Vol Premium, Skew Scanner, and Earnings Vol analysis tools Historical simulation using actual bid-ask prices and fitted vol surfaces Python package for research workflows Interactive visual dashboards for surface inspection and event studies Model Context Protocol (MCP) integration for AI agent workflows Greeks and constant-maturity metrics via API and dashboards
What makes it different	Curates only the meaningful trades that line up with committee work, bills or government contracts Tracks every signal's actual returns against the S&P 500 with live prices and no hidden data Monitors government filings around the clock for new disclosures Explains the story behind each trade with plain-English context and verdicts Mobile push alerts the moment a filing lands	Arbitrage-free fitted volatility wings extending beyond quoted book using Lee-moment discipline Accessible to quantitative researchers and AI workflows through Python, API, and MCP without requiring market-maker infrastructure 10 years of consistent historical data at one-minute granularity across 140+ symbols for rigorous backtesting
Community votes	0	0
DR (Domain Rating by Ahrefs)	18 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	7	0
Citation Flow (Majestic)	28	0
Referring domains (Majestic)	114	0

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