# Terminus

**Canonical:** https://apis.io/providers/terminus/  
**Website:** https://demandscience.com/  
**APIs profiled:** 3

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.

## Kin Score — 34.7 / 100 (thin)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 34.7).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 0.0 |
| Governance | 12.5 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 58.7 |
| Commercial Clarity | 52.6 |

## Agent readiness — 15.8 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (3)

- **Terminus ABM Platform API** — 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 ...
- **Employee Automation API** — A dedicated service that streamlines management of users and employee signature data inside an Email Experiences (Signature Ads, formerly Sigstr) account. Employee data delivere...
- **Verify API** — Email verification API — single-address real-time validation and asynchronous CSV batch verification, sold as Intelligent Verification. OWNERSHIP: this API is served from api.la...

## Security (3)

- **Terminus Authentication** — apiKey · 3 schemes
- **Terminus Domain Security** — TLSv1.3 · DMARC
- **Terminus Trust Center** — trust center published

## Plans (1)

- **Terminus Plans Pricing**

## Tags

Company, Account Based Marketing, Marketing, Advertising, Sales, B2B, Analytics, Email, Email Verification, Data Quality

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/terminus/). Scores are computed from the provider's own public artifacts under a published rubric.