aid: terminus
name: Terminus
description: 'Terminus is an account-based marketing (ABM) platform covering account-based
  advertising, web personalization, email-signature marketing (Sigstr), conversational
  chat (Ramble) and revenue measurement (BrightFunnel). Terminus merged into DemandScience
  on 2024-11-12; terminus.com now 301-redirects to demandscience.com and the product
  runs as the DemandScience ABM Platform at app.demandscienceplatform.com. Terminus-branded
  infrastructure is still in production — api.terminusplatform.com, email.terminusplatform.com
  (Email Experiences / Signature Ads), terminus.bound360.com (Web Experiences) and
  *.terminus.services — and the API reference is published on a Redocly developer portal
  at developer.terminus.com. Platform API access is issued through a support ticket,
  and every path on the developer portal and the API host requires credentials. A third
  API is publicly documented: the Verify API (formerly Lastbounce, sold as Intelligent
  Verification) at api.lastbounce.com, whose endpoints, x-api-key header, error envelope
  and result-code vocabulary are all published in the DemandScience Help Center — as
  prose and cURL, with no OpenAPI served anywhere. No plans or price points are
  published, no rate limits are documented, and there is no first-party SDK in any
  registry for any of the three APIs.'
url: https://raw.githubusercontent.com/api-evangelist/terminus/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-source-url: https://forgeglobal.com/terminus_stock/
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.23'
image: https://demandscience.com/wp-content/uploads/2023/05/cropped-favicon-192x192.png
created: '2026-08-05'
modified: '2026-08-12'
tags:
- Company
- Account Based Marketing
- Marketing
- Advertising
- Sales
- B2B
- Analytics
- Email
- Email Verification
- Data Quality
apis:
- name: Terminus ABM Platform API
  description: 'The account-based marketing platform API behind Terminus (now the DemandScience
    ABM Platform). The API host api.terminusplatform.com is live and answers every
    anonymous request with HTTP 401 "Authentication Invalid"; the reference is published
    on a Redocly developer portal at developer.terminus.com where every path 302-redirects
    to /redocly-login. Platform API access is requested through a support ticket.'
  humanURL: https://developer.terminus.com/
  baseURL: https://api.terminusplatform.com/
  tags:
  - Account Based Marketing
  - Marketing
  properties:
  - type: DeveloperPortal
    url: https://developer.terminus.com/
  - type: Authentication
    url: authentication/terminus-authentication.yml
- name: Employee Automation API
  description: 'A dedicated service that streamlines management of users and employee
    signature data inside an Email Experiences (Signature Ads, formerly Sigstr) account.
    Employee data delivered to the API endpoint creates, updates and removes employees
    in real time; v4 (July 2022) stops Employee Group changes from overwriting admin
    selections made in the UI. Access is granted by submitting a support ticket, and
    no public reference or specification is published.'
  humanURL: https://support.demandscience.com/hc/en-us/articles/360051822454-Employee-Automation-API-for-Email-Experiences
  baseURL: https://email.terminusplatform.com/
  tags:
  - Email
  - Marketing
- name: Verify API
  description: 'Email verification API — single-address real-time validation and asynchronous
    CSV batch verification, sold as Intelligent Verification. OWNERSHIP: this API is
    served from api.lastbounce.com rather than a terminus.com or demandscience.com
    host because Verify is the renamed Lastbounce product; the provider''s own
    reference states the environment URL format is https://<environment>.lastbounce.com/,
    and the article is published in the DemandScience Help Center whose product-rename
    set (Lastbounce → Verify, Klarity → Audience Builder, Email Experiences → Signature
    Ads) is documented in lifecycle/terminus-lifecycle.yml. It is a sibling product to
    the Terminus ABM Platform under the merged DemandScience entity this repo profiles,
    NOT a Terminus-branded API — recorded as its own entry so it is never conflated
    with the ABM Platform API. It is the only API of this provider with a public
    reference: endpoints, the x-api-key header, the error envelope and the full
    result-code vocabulary are all published, though no OpenAPI is served (the article
    offers "a copy of the full API documentation" on request). Operations: POST
    /api/singleEmail/validate, POST /api/batch/validation, POST /api/batch/{jobId}/status,
    GET /api/file/download/{jobId}. Metered in prepaid credits, one per verification.'
  humanURL: https://support.demandscience.com/hc/en-us/sections/38485678357267-API-Documentation
  baseURL: https://api.lastbounce.com/
  tags:
  - Email Verification
  - Data Quality
  - Email
  properties:
  - type: APIReference
    url: https://support.demandscience.com/hc/en-us/sections/38485678357267-API-Documentation
  - type: Authentication
    url: authentication/terminus-authentication.yml
  - type: ErrorCatalog
    url: errors/terminus-problem-types.yml
  - type: Conventions
    url: conventions/terminus-conventions.yml
  - type: DataModel
    url: data-model/terminus-data-model.yml
  - type: RateLimits
    url: rate-limits/terminus-rate-limits.yml
  - type: Sandbox
    url: sandbox/terminus-sandbox.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://demandscience.com/
- type: DeveloperPortal
  url: https://developer.terminus.com/
- type: Documentation
  url: https://support.demandscience.com/hc/en-us
- type: Support
  url: https://support.demandscience.com/hc/en-us
- type: Login
  url: https://app.demandscienceplatform.com/
- type: Blog
  url: https://demandscience.com/resources/blog/
- type: TermsOfService
  url: https://demandscience.com/terms-of-service/
- type: PrivacyPolicy
  url: https://demandscience.com/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/demandscience
- type: Authentication
  url: authentication/terminus-authentication.yml
- type: Lifecycle
  url: lifecycle/terminus-lifecycle.yml
- type: Deprecation
  url: https://support.demandscience.com/hc/en-us/articles/46047614705811-Chat-Experiences-Deprecation-December-31-2025
- type: Conformance
  url: conformance/terminus-conformance.yml
- type: DomainSecurity
  url: security/terminus-domain-security.yml
- type: TrustCenter
  url: security/terminus-trust-center.yml
- type: LLMsTxt
  url: llms/terminus-llms.txt
- type: APIReference
  url: https://support.demandscience.com/hc/en-us/sections/38485678357267-API-Documentation
- type: GettingStarted
  url: https://support.demandscience.com/hc/en-us/sections/201012678-Getting-Started-with-DemandScience
- type: Pricing
  url: https://demandscience.com/faq/pricing-fit-commercial/
- type: GitHubOrganization
  url: https://github.com/GetTerminus
- type: Packages
  url: packages/terminus-packages.yml
- type: Conventions
  url: conventions/terminus-conventions.yml
- type: DataModel
  url: data-model/terminus-data-model.yml
- type: ErrorCatalog
  url: errors/terminus-problem-types.yml
- type: RateLimits
  url: rate-limits/terminus-rate-limits.yml
- type: Plans
  url: plans/terminus-plans-pricing.yml
- type: Sandbox
  url: sandbox/terminus-sandbox.yml
x-enrichment:
  date: '2026-08-12'
  status: enriched
  artifacts_added: 7
  pass: local-v1