# SS&C Technologies

> SS&C Technologies Holdings (NASDAQ: SSNC) is a global provider of financial-services and
> healthcare software and outsourcing, operating brands including SS&C Advent, SS&C Eze, SS&C
> GlobeOp, SS&C GIDS, SS&C Intralinks, SS&C Black Diamond, SS&C Algorithmics and SS&C Blue Prism.
> Most of its API surface is client-gated. The one surface with a public machine-readable contract
> is SS&C Eze EMS xAPI, an execution-management API published as three proto3 files (64 gRPC RPCs)
> with an equivalent REST projection described by OpenAPI 3.0.4 (73 operations).

Generated by API Evangelist on 2026-09-13 from this repository's artifacts. SS&C publishes no
llms.txt of its own; /llms.txt was probed on www.ssctech.com, developer.ssctech.com, www.advent.com
and www.blackdiamondwealthplatform.com and returned 404 or an SPA shell on every host.

## Access reality (read this before planning an integration)

- No SS&C API is self-serve. Credentials come from a client relationship manager or client service
  representative on every surface.
- No public pricing exists for any SS&C product or API.
- No SS&C MCP server, agent card, or llms.txt exists.
- The Eze EMS xAPI has no idempotency mechanism on any of its 30 mutating operations, and order
  submission is a real-money write. Its reversal operations (cancel, unsubscribe) are published but
  carry no stated window.

## SS&C Eze EMS xAPI

- [xAPI repository and documentation](https://github.com/ezesoft/xapi): proto files, readme, FAQ,
  per-language sample scripts, nine Python tutorials, and six PDF guides.
- [Live OpenAPI 3.0.4](https://emsuatxapi.taltrade.com:9001/swagger/v1/swagger.json): 61 paths, 73
  operations, 123 schemas, version v2026.5.0.
- [Swagger UI](https://emsuatxapi.taltrade.com:9001/index.html): browsable API reference, no login.
- [Postman collection](https://www.postman.com/ssnc-eze-ems-xapi/ems-xapi-rest/collection/jeebiq6/ss-c-eze-ems-xapi):
  public workspace for the REST surface.
- [order.proto](https://github.com/ezesoft/xapi/blob/master/protos/order.proto): SubmitOrderService,
  17 RPCs — single, pair, basket, allocation, book-trade and trade-report submission, amendment,
  cancellation, order-detail retrieval and streaming order info.
- [market_data.proto](https://github.com/ezesoft/xapi/blob/master/protos/market_data.proto):
  MarketDataService, 24 RPCs — Level 1 and Level 2 quotes, tick data, intraday and
  daily/weekly/monthly bars, option chains and greeks, symbol reference data and alternate-symbology
  resolution (ISIN, SEDOL, RIC, CUSIP, Bloomberg).
- [utilities.proto](https://github.com/ezesoft/xapi/blob/master/protos/utilities.proto):
  UtilityServices, 23 RPCs — connect/disconnect, SRP login, MFA, password change, today's balances,
  net positions, broken-down positions and activity, strategies, routes and heartbeat.
- Authentication: Connect returns a UserToken carried on every subsequent call. SRP and TOTP MFA are
  supported. The REST projection carries every parameter, including Password and UserToken, in the
  query string. Three login attempts in 60 seconds locks the account for 3 minutes.
- Errors: one shape everywhere, google.rpc.Status {code, message, details[Any]}. No 4xx or 5xx is
  declared on any operation, and a 200 does not mean success — read ServerResponse and
  ServerAcknowledgement in the body.
- Events: gRPC server streaming, not webhooks and not AsyncAPI. The REST projection can subscribe and
  unsubscribe but cannot deliver the stream.

## SS&C APIM Developer Portal

- [Developer portal](https://developer.ssctech.com/): application registration, consumer management
  and the SS&C API catalog, fronted by a Kong gateway. The catalog itself is behind SSO — every
  catalog endpoint 302s to /sso/login — so no contract is reachable anonymously.
- [OpenID Connect discovery](https://ssoprod.ssnc.cloud/auth/realms/APIM/.well-known/openid-configuration):
  the one public discovery document SS&C serves. Keycloak realm APIM, PKCE S256, ten grant types.

## SS&C Black Diamond Wealth Platform

- [Developer portal](https://www.blackdiamondwealthplatform.com/): sign-in required. New partners
  apply through a request form; existing clients request access through their Black Diamond account.
- API host https://api.blackdiamondwealthplatform.com is live but returns
  {"statusCode":404,"message":"Resource not found"} for every anonymous path including every
  spec location probed.

## Company

- [Website](https://www.ssctech.com/)
- [Blog](https://www.ssctech.com/blog)
- [Support and client portals](https://www.ssctech.com/about/support-client-portals)
- [Disclaimer / terms](https://www.ssctech.com/about/disclaimer)
- [Privacy](https://www.ssctech.com/about/privacy)
- [Security addendum](https://www.ssctech.com/about/disclosures/security-addendum-schedule3) — names
  a SOC 1 Type 2 audit under SSAE 18, available on request under contract.
- [GitHub (SS&C Eze)](https://github.com/ezesoft)