# Attendease

**Canonical:** https://apis.io/providers/attendease/  
**Website:** https://eventupplanner.com  
**APIs profiled:** 2

Attendease (now EventUp Planner, following its acquisition by Tripleseat) is an event and meeting management platform for planning, promoting, and running virtual, in-person, and hybrid events such as conferences, webinars, roadshows, and product launches. Attendease exposes a public developer API in two tiers: an Event API scoped to a single event subdomain (attendee tokens, sessions, presenters, surveys, sponsors, rooms, venues, and content) and an Organization API (`/api/v2/`) that spans business units, events, members, attendees, session attendance, check-ins, partners, and contact lists. The Organization API is authenticated with HMAC-SHA1 request signing (`Authorization: APIAuth access_key:signature`) while the Event API uses attendee/event tokens and HTTP Basic auth. First-party JavaScript and Ruby SDKs plus a Jekyll plugin are published to npm and RubyGems.

## Kin Score — 36.0 / 100 (thin)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-4.6 from 40.6).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 39.5 |
| Developer Ergonomics | 28.0 |
| Commercial Clarity | 77.6 |
| Access Clarity | 77.6 |

## Agent readiness — 16.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | 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 | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (2)

- **Attendease Organization API** — Organization-level REST API (v2) spanning business units, events, members, attendees, session attendance, check-ins, partners, and contact lists. Authenticated with HMAC-SHA1 re...
- **Attendease Event API** — Event-scoped REST API bound to a single event subdomain covering event properties, sessions and session instances, presenters, surveys, sponsors, rooms, venues, filters, and con...

## MCP servers (1)

- **attendease-mcp.yml**

## Security (2)

- **Attendease Authentication** — 4 schemes
- **Attendease Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Attendease Plans Pricing**

## Tags

Company, Events, Event Management, Event Marketing, Conferences, Webinars, Attendees, Registration, SaaS

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