Bitsight Security Ratings API
Bitsight Security Ratings REST API for continuous security performance measurement and third-party risk management. Enables AI agents to retrieve company security ratings and rating history for portfolio monitoring, handle third-party and supply chain risk assessment automation, access risk vector data covering botnet infections, open ports, patching cadence, and web application security, retrieve security performance benchmarking data against industry peers, manage subsidiary and supply chain company portfolio tracking, handle security questionnaire and findings data integration, access ransomware susceptibility and exposure scoring, retrieve attack surface management and exposed asset data, manage alert and threshold notification configuration, and integrate security rating data with GRC, TPRM, and cyber insurance platforms.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security ratings. SOC2, ISO27001. API token. US. External security posture data.
⚡ Reliability
Best When
An enterprise using Bitsight wants AI agents to automate continuous vendor security monitoring, third-party risk assessment, portfolio security tracking, cyber insurance data provision, and GRC integration.
Avoid When
OPERATIONAL RISK: Security rating data reflects external observable signals — ratings can lag actual security improvements or incorrectly penalize for false positives. Automated vendor contract decisions based solely on Bitsight scores without vendor engagement can damage relationships. Ratings are one input among many for risk decisions.
Use Cases
- • Monitoring vendor security ratings from third-party risk management agents
- • Automating cyber insurance underwriting from risk quantification agents
- • Tracking portfolio company security posture from investment risk agents
- • Integrating security ratings with GRC from vendor governance agents
Not For
- • Internal vulnerability management without external-facing security posture focus
- • Application security testing without continuous external monitoring
- • Consumer security tools without enterprise portfolio monitoring
Interface
Authentication
Bitsight uses API token authentication (Bearer token). Per-account token with portfolio access. Webhooks for rating change and alert notifications. REST API documentation on Bitsight Help Center. No SDK — direct REST with standard pagination. Bitsight data is observable/external — no customer installation required.
Pricing
Boston, Massachusetts. Founded 2011. Private (Moody's investment). Security ratings market pioneer. $250M+ funding. 3,000+ customers. Moody's partnership for credit risk integration. Acquired by Moody's Corporation (2023, $250M equity stake). Cyber insurance data provider. Strong financial services and Fortune 500. Competes with SecurityScorecard for security ratings.
Agent Metadata
Known Gotchas
- ⚠ OPERATIONAL RISK: Security ratings are external signals — use as one input; engage vendors before automated contract decisions based on scores
- ⚠ Portfolio size licensing — API access is limited to companies in your subscribed portfolio; queries for companies outside portfolio return errors
- ⚠ Rating change latency — Bitsight collects data continuously but scores update on weekly/daily cadence; real-time monitoring requires webhook for change events
- ⚠ Risk vector coverage — not all risk vectors are included in all subscription tiers; verify tier includes required risk vectors for automation
- ⚠ Company matching — identifying companies by domain/IP requires accurate attribution; Bitsight attribution is best-effort for ambiguous assets
- ⚠ Webhook for monitoring — polling for rating changes is inefficient; use webhooks for threshold breach alerts in production monitoring
Alternatives
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Scores are editorial opinions as of 2026-03-07.