Sustainalytics ESG Risk Ratings and Research REST API

Sustainalytics ESG risk ratings and research REST API for asset managers, banks, pension funds, and ESG-focused investment platforms to access ESG risk ratings, corporate governance scores, carbon research, climate risk assessments, and sustainable finance analytics — enabling automated ESG portfolio screening, green bond assessment, and responsible investment due diligence through Sustainalytics' (Morningstar subsidiary) global ESG intelligence covering 50,000+ companies. Enables AI agents to manage ESG risk rating for company sustainability risk score automation, handle company screening for ESG portfolio inclusion/exclusion automation, access governance research for corporate governance quality assessment automation, retrieve controversies for ESG controversy monitoring and alerting automation, manage carbon research for corporate emissions and climate risk automation, handle green bond assessment for use-of-proceeds verification automation, access SDG alignment for UN Sustainable Development Goals mapping automation, retrieve portfolio analytics for ESG aggregate fund analysis automation, manage engagement data for shareholder engagement tracking automation, and integrate Sustainalytics with investment management, portfolio analytics, and ESG reporting platforms for sustainable finance automation.

Evaluated Mar 07, 2026 (0d ago) vcurrent
Homepage ↗ Other sustainalytics ESG ESG-ratings sustainable-finance Morningstar green-investing
⚙ Agent Friendliness
52
/ 100
Can an agent use this?
🔒 Security
74
/ 100
Is it safe for agents?
⚡ Reliability
66
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
10
Documentation
70
Error Messages
66
Auth Simplicity
68
Rate Limits
60

🔒 Security

TLS Enforcement
97
Auth Strength
72
Scope Granularity
62
Dep. Hygiene
68
Secret Handling
70

ESG research. GDPR, SFDR. OAuth2. EU/US. Corporate ESG and sustainability rating data.

⚡ Reliability

Uptime/SLA
64
Version Stability
70
Breaking Changes
64
Error Recovery
64
AF Security Reliability

Best When

An asset manager, bank, pension fund, or ESG investment platform wanting AI agents to access ESG risk ratings, corporate governance scores, climate risk data, and portfolio analytics through Sustainalytics' (Morningstar) global ESG intelligence platform.

Avoid When

ENTERPRISE SUBSCRIPTION REQUIRED: Sustainalytics data is licensed enterprise content; automated open API access assumption creates no endpoint access; automated must establish Sustainalytics enterprise subscription through Morningstar. DATA UPDATE FREQUENCY IS NOT REAL-TIME: Sustainalytics ratings are updated periodically (quarterly/annually per data type); automated real-time ESG assumption creates stale_data between update cycles; automated must understand and communicate data currency to users. METHODOLOGY IS PROPRIETARY: Sustainalytics uses proprietary ESG methodology; automated standard-methodology assumption creates comparability issues when mixing with other ESG providers; automated must disclose Sustainalytics methodology when reporting. COVERAGE IS 50K+ COMPANIES: Sustainalytics covers 50,000+ companies but not all public or private companies; automated universal coverage assumption creates no_rating_available for smaller companies; automated must handle entities without Sustainalytics coverage.

Use Cases

  • Screening investment portfolios for ESG risk ratings for responsible investment fund management automation agents
  • Assessing green bond use-of-proceeds for sustainable finance product verification automation agents
  • Monitoring ESG controversies for corporate reputation and risk management automation agents
  • Analyzing portfolio-level ESG scores and carbon footprint for sustainable finance reporting automation agents

Not For

  • Real-time market data (Sustainalytics is ESG research data, not financial market pricing)
  • Individual consumer ESG scoring (Sustainalytics covers companies and issuers, not individual investors)
  • Environmental regulatory compliance (Sustainalytics is research ratings, not regulatory compliance management)

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
No

Authentication

Methods: oauth2
OAuth: Yes Scopes: Yes

Sustainalytics uses OAuth2 for ESG data REST API. REST API with JSON. Amsterdam, Netherlands HQ. Founded 1992. Acquired by Morningstar 2020. Products: ESG Risk Ratings, Corporate Governance Research, Controversies Research, Carbon Research, Green Bond Assessment, Country Risk Rating. SDKs: None public. 50,000+ companies covered. SFDR and EU Taxonomy aligned. Competes with MSCI ESG Research for institutional ESG data.

Pricing

Model: subscription
Free tier: No
Requires CC: No

Amsterdam NL. Morningstar subsidiary. Annual licensing. 50,000+ companies. SFDR aligned.

Agent Metadata

Pagination
cursor
Idempotent
Full
Retry Guidance
Not documented

Known Gotchas

  • IDENTIFIER MAPPING IS CRITICAL: Sustainalytics uses its own company IDs; automated ISIN/CUSIP direct lookup assumption creates identifier_mapping_required; automated must map ISIN, SEDOL, or ticker to Sustainalytics company ID before data retrieval
  • ESG RATINGS HAVE DIFFERENT UPDATE SCHEDULES: Different Sustainalytics products update at different frequencies (annual ratings, quarterly controversies, weekly alerts); automated uniform update assumption creates stale_data from infrequently updated data types; automated must track last_update date per data type
  • SFDR ARTICLE CLASSIFICATION REQUIRES METHODOLOGY UNDERSTANDING: Mapping Sustainalytics data to SFDR Article 8/9 requirements requires methodology knowledge; automated automated-SFDR assumption creates incorrect disclosure; automated must implement Morningstar/Sustainalytics methodology documentation for SFDR reporting
  • PORTFOLIO ANALYTICS REQUIRES HOLDINGS: Portfolio-level ESG analytics require position-level holdings as input; automated portfolio-level-without-holdings assumption creates empty_portfolio; automated must submit portfolio holdings before requesting portfolio analytics
  • CONTROVERSY ALERTS ARE TIME-SENSITIVE: ESG controversy events (spills, labor violations) require monitoring; automated batch-only controversy assumption creates delayed alert response; automated must implement regular controversy data refresh for responsive ESG monitoring

Alternatives

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Scores are editorial opinions as of 2026-03-07.

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