# Morgan Stanley API Platform (REST)

**Canonical:** https://apis.io/apis/morgan-stanley/api-platform-rest/  
**Provider:** Morgan Stanley — https://apis.io/providers/morgan-stanley/  
**Documentation:** https://developer.morganstanley.com/apis

Morgan Stanley API Platform (REST) is one of 6 APIs that [Morgan Stanley](https://apis.io/providers/morgan-stanley/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Financial, Institutional, REST, OpenAPI, and Authentication. The published artifact set on APIs.io includes API documentation.

The institutional REST APIs on the Morgan Stanley API Platform let onboarded clients and third-party partners integrate Morgan Stanley data and services directly into their own systems and processes. The REST APIs are built to the OpenAPI Specification and follow the Microsoft API Guidelines, supporting tooling and code generation in all major languages. Access is by invitation only: developers must contact their Morgan Stanley representative to be onboarded, after which they can browse technical specifications, try APIs interactively in the portal, and acquire keys. APIs are secured with OAuth 2.0 using strong certificate-based exchange (Microsoft Entra / Azure AD confidential client credentials with a self-signed key pair and certificate thumbprint, via the MSAL library). OpenAPI documents are published inside the authenticated portal and are not publicly downloadable.

## Machine-readable artifacts (5)

- **Documentation** — https://developer.morganstanley.com/apis
- **DeveloperPortal** — https://developer.morganstanley.com/
- **SampleCode** — https://github.com/morganstanley/api
- **TermsOfService** — https://developer.morganstanley.com/terms
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/morgan-stanley/refs/heads/main/apis.yml

## Other Morgan Stanley APIs (5)

- [Morgan Stanley API Platform (WebSocket Streaming)](https://apis.io/apis/morgan-stanley/api-platform-websocket/)
- [E*TRADE from Morgan Stanley - Accounts API](https://apis.io/apis/morgan-stanley/etrade-accounts/)
- [E*TRADE from Morgan Stanley - Market Data API](https://apis.io/apis/morgan-stanley/etrade-market-data/)
- [E*TRADE from Morgan Stanley - Order API](https://apis.io/apis/morgan-stanley/etrade-orders/)
- [E*TRADE from Morgan Stanley - Alerts API](https://apis.io/apis/morgan-stanley/etrade-alerts/)

## Tags

Financial, Institutional, REST, OpenAPI, Authentication, United States

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/morgan-stanley/api-platform-rest/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/morgan-stanley/.