Atrium

Atrium is a sales-effectiveness and sales-performance business intelligence platform for revenue teams. It continuously monitors sales KPIs to surface anomalies in rep and team performance, detects which behaviors and activities are driving (or dragging) output, and delivers AI-powered coaching recommendations to managers and reps. The product connects directly to Salesforce, HubSpot, data warehouses, and communication tools rather than exposing a public developer API. Founded in San Francisco by Jason Heidema (CEO) and Peter Kazanjy and backed by Andreessen Horowitz (a16z), Bullpen Capital, and Electric Capital, Atrium was acquired by Fullcast in 2025 and is now offered as Fullcast Performance; atriumhq.com redirects to fullcast.com and only the customer application login at app.atriumhq.com remains on the Atrium domain.

Atrium is profiled on the APIs.io network. Tagged areas include Company, Sales, Analytics, Business Intelligence, and Sales Performance.

🌐 Visit website 📡 Source on GitHub

6.3/100 minimal ▬ flat Agent 3/100 human only saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Sales Analytics Business IntelligenceSales PerformanceRevenue Operations CRM

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 6.3/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 1.3 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/atrium: 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 →

Pricing Plans 1

Published pricing tiers and plan structures.

Atrium Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Atrium Rate Limits

0 limits

RATE LIMITS

Security Posture 1

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

Atrium Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Source (apis.yml)

aid: atrium
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - url: https://www.atriumhq.com
    status: 301
    note: declared website redirects to https://www.fullcast.com/product/fullcast-performance/ — a different registrable domain
      (atriumhq.com -> fullcast.com), possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/atrium.png
name: Atrium
description: Atrium is a sales-effectiveness and sales-performance business intelligence platform for revenue teams. It continuously
  monitors sales KPIs to surface anomalies in rep and team performance, detects which behaviors and activities are driving
  (or dragging) output, and delivers AI-powered coaching recommendations to managers and reps. The product connects directly
  to Salesforce, HubSpot, data warehouses, and communication tools rather than exposing a public developer API. Founded in
  San Francisco by Jason Heidema (CEO) and Peter Kazanjy and backed by Andreessen Horowitz (a16z), Bullpen Capital, and Electric
  Capital, Atrium was acquired by Fullcast in 2025 and is now offered as Fullcast Performance; atriumhq.com redirects to fullcast.com
  and only the customer application login at app.atriumhq.com remains on the Atrium domain.
url: https://raw.githubusercontent.com/api-evangelist/atrium/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- bullpen-capital
- electric-capital
x-acquired-by: fullcast
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Company
- Sales
- Analytics
- Business Intelligence
- Sales Performance
- Revenue Operations
- CRM
tags_raw:
- Company
- Sales
- Analytics
- Business Intelligence
- Sales Performance
- RevOps
- CRM
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: ParentCompany
  url: https://apis.io/providers/fullcast/
  name: Fullcast
  x-relationship: acquired
  x-evidence: Founded in San Francisco by Jason Heidema (CEO) and Peter Kazanjy and backed by Andreessen Horowitz (a16z),
    Bullpen Capital, and Electric Capital, Atrium was acquired by Fullcast in 2025 and is now offered as Fullcast Performance;
    atriumhq.
- type: DomainSecurity
  url: security/atrium-domain-security.yml
- type: Lifecycle
  url: lifecycle/atrium-lifecycle.yml
- type: LLMsTxt
  url: llms/atrium-llms.txt
- type: Website
  url: https://www.atriumhq.com
- type: Login
  url: https://app.atriumhq.com/auth/login
x-enrichment:
  date: '2026-08-13'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: Atrium was acquired by Fullcast and now ships as Fullcast Performance — every path on atriumhq.com, including /.well-known/*,
    answers a blanket HTTP 301 to https://www.fullcast.com/product/fullcast-performance/, and the only Atrium host still resolving
    is the customer application login at app.atriumhq.com.
  evidence:
  - url: https://www.atriumhq.com/
    status: 301
  - url: https://app.atriumhq.com/.well-known/agent-card.json
    status: 404
  - url: https://docs.atriumhq.com/
    status: 0
  checked: '2026-08-13'

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