SS&C Technologies

SS&C Technologies Holdings (NASDAQ: SSNC) is a global provider of financial-services and healthcare software and outsourcing, headquartered in Windsor, Connecticut, operating under 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 the API surface is client-gated: the corporate SS&C APIM developer portal at developer.ssctech.com and the Black Diamond developer portal both require an account, and access is requested through a client relationship manager. The substantial public exception is SS&C Eze EMS xAPI, whose machine-readable contract SS&C Eze publishes openly on GitHub as three proto3 files — 64 gRPC RPCs across MarketDataService, SubmitOrderService and UtilityServices — alongside a matching REST projection described by a live OpenAPI 3.0.4 document with 73 operations covering order submission and amendment, pair and basket orders, allocations and trade reports, real-time and historical market data, and intraday balances, positions and activity.

SS&C Technologies publishes 1 API on the APIs.io network: SS&C Eze EMS xAPI. Tagged areas include Financial-Services, Investment Management, Fund Administration, Wealth Management, and Execution Management.

SS&C Technologies’ developer surface includes documentation, API reference, getting-started guide, support, engineering blog, signup flow, authentication, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub
48.2/100 developing Agent 34/100 agent ready Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0
1 APIs
Financial-ServicesInvestment ManagementFund AdministrationWealth ManagementExecution ManagementOrder ManagementMarket DataTradinggRPCEnterprise Software

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0
Composite quality — 48.2/100 · developing
Contract Quality 6.8 / 19
Developer Ergonomics 10.3 / 15
Access Clarity 6.3 / 15
Operational Transparency 3.1 / 10
Contract Governance 0.4 / 9
Discoverability 5.1 / 8
Regulatory Posture 11.5 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 34/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 6 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/ss-c-technologies: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

SS&C Eze EMS xAPI

Cross-platform execution-management API for Eze EMS, published by SS&C Eze as a gRPC contract (three proto3 files, 64 RPCs across MarketDataService, SubmitOrderService and Utili...

SS&C APIM Developer Portal

SS&C's corporate API management portal, where clients register applications, request access to SS&C API products and manage consumers against a Kong gateway. The API catalog its...

SS&C Black Diamond Wealth Platform API

REST API and developer portal for the SS&C Advent Black Diamond wealth platform, covering portfolio, account and client data exchange for advisors and integration partners. The ...

Pricing Plans 1

Published pricing tiers and plan structures.

Ss C Technologies Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ss C Technologies Rate Limits

1 limits

RATE LIMITS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ss C Technologies Authentication

http/session-token/srp/openIdConnect · 5 schemes

SECURITY

Ss C Technologies Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Ss C Technologies Trust Center

SOC 1 Type 2

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Ss C Technologies Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Postman
Postman
 Packages
Packages

Access & Security 3

Authentication, authorization, and security posture

Compliance
Compliance
 Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support
Support
 Deprecation
Deprecation
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: ss-c-technologies
name: SS&C Technologies
description: 'SS&C Technologies Holdings (NASDAQ: SSNC) is a global provider of financial-services and healthcare software
  and outsourcing, headquartered in Windsor, Connecticut, operating under 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 the API surface is client-gated:
  the corporate SS&C APIM developer portal at developer.ssctech.com and the Black Diamond developer portal both require an
  account, and access is requested through a client relationship manager. The substantial public exception is SS&C Eze EMS
  xAPI, whose machine-readable contract SS&C Eze publishes openly on GitHub as three proto3 files — 64 gRPC RPCs across MarketDataService,
  SubmitOrderService and UtilityServices — alongside a matching REST projection described by a live OpenAPI 3.0.4 document
  with 73 operations covering order submission and amendment, pair and basket orders, allocations and trade reports, real-time
  and historical market data, and intraday balances, positions and activity.'
image: https://www.ssctech.com/hubfs/website/logos/ssc_logo_1200x630.png
url: https://raw.githubusercontent.com/api-evangelist/ss-c-technologies/refs/heads/main/apis.yml
x-type: company
x-source: harvest:absent-parent
specificationVersion: '0.20'
created: '2026-09-13'
modified: '2026-09-13'
position: Producing
tags:
- Financial-Services
- Investment Management
- Fund Administration
- Wealth Management
- Execution Management
- Order Management
- Market Data
- Trading
- gRPC
- Enterprise Software
tags_raw:
- financial-services
- investment-management
- fund-administration
- wealth-management
- execution-management
- order-management
- market-data
- trading
- grpc
- enterprise-software
apis:
- name: SS&C Eze EMS xAPI
  description: Cross-platform execution-management API for Eze EMS, published by SS&C Eze as a gRPC contract (three proto3
    files, 64 RPCs across MarketDataService, SubmitOrderService and UtilityServices) with an equivalent REST projection described
    by OpenAPI 3.0.4 (73 operations, 123 schemas). Covers connect/authenticate (including SRP and MFA), single, pair, basket,
    allocation and book-trade order submission, amendment and cancellation, order and execution detail retrieval, streaming
    order and market-data subscriptions, symbol reference data, option chains and greeks, and today's balances, net positions
    and activity. Bearer JWT on REST; a UserToken returned by Connect is carried on every subsequent call.
  humanURL: https://github.com/ezesoft/xapi
  baseURL: https://emsuatxapi.taltrade.com:9001
  tags:
  - Execution Management
  - Order Management
  - Market Data
  - Trading
  - gRPC
  - Financial-Services
  tags_raw:
  - execution-management
  - order-management
  - market-data
  - trading
  - grpc
  - financial-services
  properties:
  - type: OpenAPI
    url: openapi/ss-c-technologies-eze-ems-xapi-openapi.json
  - type: Protobuf
    url: grpc/ss-c-technologies-xapi-order.proto
  - type: Protobuf
    url: grpc/ss-c-technologies-xapi-market-data.proto
  - type: Protobuf
    url: grpc/ss-c-technologies-xapi-utilities.proto
  - type: Documentation
    url: https://github.com/ezesoft/xapi/blob/master/readme.md
  - type: APIReference
    url: https://emsuatxapi.taltrade.com:9001/index.html
  - type: GettingStarted
    url: https://github.com/ezesoft/xapi/blob/master/readme.md#how-do-i-get-started-with-xapi
  - type: SourceCode
    url: https://github.com/ezesoft/xapi
  - type: Postman
    url: https://www.postman.com/ssnc-eze-ems-xapi/ems-xapi-rest/collection/jeebiq6/ss-c-eze-ems-xapi
  - type: Authentication
    url: authentication/ss-c-technologies-authentication.yml
  - type: Conventions
    url: conventions/ss-c-technologies-conventions.yml
  - type: ErrorCatalog
    url: errors/ss-c-technologies-problem-types.yml
  - type: DataModel
    url: data-model/ss-c-technologies-data-model.yml
  - type: Overlay
    url: overlays/ss-c-technologies-eze-ems-xapi-overlay.yaml
  - type: Sandbox
    url: sandbox/ss-c-technologies-sandbox.yml
- name: SS&C APIM Developer Portal
  description: SS&C's corporate API management portal, where clients register applications, request access to SS&C API products
    and manage consumers against a Kong gateway. The API catalog itself is behind authentication — every catalog endpoint
    302s to an SSO login — and access is granted by a client relationship manager, so no machine-readable contract is reachable
    anonymously. The Keycloak realm backing it serves a public OpenID Connect discovery document.
  humanURL: https://developer.ssctech.com/
  baseURL: https://apim.ssnc.cloud
  tags:
  - Financial-Services
  - API Management
  tags_raw:
  - financial-services
  - api-management
  properties:
  - type: DeveloperPortal
    url: https://developer.ssctech.com/
  - type: SignUp
    url: https://developer.ssctech.com/register
  - type: OpenIDConnect
    url: https://ssoprod.ssnc.cloud/auth/realms/APIM/.well-known/openid-configuration
  - type: OAuthScopes
    url: scopes/ss-c-technologies-scopes.yml
- name: SS&C Black Diamond Wealth Platform API
  description: REST API and developer portal for the SS&C Advent Black Diamond wealth platform, covering portfolio, account
    and client data exchange for advisors and integration partners. The portal requires sign-in; new partners apply through
    a request form and existing clients request access through their Black Diamond account, so the OpenAPI 3 specification
    SS&C describes in its product material is not reachable without credentials.
  humanURL: https://www.blackdiamondwealthplatform.com/
  baseURL: https://api.blackdiamondwealthplatform.com
  tags:
  - Wealth Management
  - Financial-Services
  tags_raw:
  - wealth-management
  - financial-services
  properties:
  - type: DeveloperPortal
    url: https://www.blackdiamondwealthplatform.com/
  - type: SignUp
    url: https://www.blackdiamondwealthplatform.com/signup
  - type: Login
    url: https://www.blackdiamondwealthplatform.com/signin
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.ssctech.com/
- type: DeveloperPortal
  url: https://developer.ssctech.com/
- type: Documentation
  url: https://github.com/ezesoft/xapi/blob/master/readme.md
- type: APIReference
  url: https://emsuatxapi.taltrade.com:9001/index.html
- type: GettingStarted
  url: https://github.com/ezesoft/xapi/blob/master/readme.md#how-do-i-get-started-with-xapi
- type: Support
  url: https://www.ssctech.com/about/support-client-portals
- type: Blog
  url: https://www.ssctech.com/blog
- type: GitHubOrganization
  url: https://github.com/ezesoft
- type: Postman
  url: https://www.postman.com/ssnc-eze-ems-xapi/ems-xapi-rest/collection/jeebiq6/ss-c-eze-ems-xapi
- type: SignUp
  url: https://developer.ssctech.com/register
- type: TermsOfService
  url: https://www.ssctech.com/about/disclaimer
- type: PrivacyPolicy
  url: https://www.ssctech.com/about/privacy
- type: Compliance
  url: https://www.ssctech.com/about/disclosures/security-addendum-schedule3
- type: Authentication
  url: authentication/ss-c-technologies-authentication.yml
- type: Conventions
  url: conventions/ss-c-technologies-conventions.yml
- type: Conformance
  url: conformance/ss-c-technologies-conformance.yml
- type: ErrorCatalog
  url: errors/ss-c-technologies-problem-types.yml
- type: Lifecycle
  url: lifecycle/ss-c-technologies-lifecycle.yml
- type: Deprecation
  url: lifecycle/ss-c-technologies-lifecycle.yml
- type: Packages
  url: packages/ss-c-technologies-packages.yml
- type: RateLimits
  url: rate-limits/ss-c-technologies-rate-limits.yml
- type: Plans
  url: plans/ss-c-technologies-plans-pricing.yml
- type: Sandbox
  url: sandbox/ss-c-technologies-sandbox.yml
- type: DataModel
  url: data-model/ss-c-technologies-data-model.yml
- type: WellKnown
  url: well-known/ss-c-technologies-well-known.yml
- type: DomainSecurity
  url: security/ss-c-technologies-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/ss-c-technologies-llms.txt
x-enrichment:
  date: '2026-09-13'
  status: enriched
  artifacts_added: 27
  pass: local-v3

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