Demio

Demio is a browser-based webinar and virtual-event platform built for B2B marketing and sales teams, operated by Banzai International, Inc. (NASDAQ: BNZI). It runs live, automated/evergreen, on-demand and series webinars with no attendee download, and pairs them with customizable registration pages, embeddable registration forms, in-session engagement tools (polls, handouts, featured actions, chat), recordings, Showcase event listings and post-webinar analytics. Its public developer surface is the Public Demio API — a key/secret authorized REST API at https://my.demio.com/api/v1 covering Events, Event Sessions (Dates), attendee registration with unique join links, and per-Session participation reporting. Demio documents the API as an Apiary API Blueprint, publishes burst rate limits and daily call quotas, runs a public Atlassian Statuspage, ships one first-party PHP SDK from its meetdemio GitHub organization, and offers a Zapier app with registration, join, no-show and event-update triggers for teams that do not want to call the API directly.

Demio publishes 3 API contracts indexed on the APIs.io network: Events API, Intro API, and Reports API. Tagged areas include Company, Webinars, Virtual Events, Event Management, and Marketing.

The Demio catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Demio’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 30 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

53.1/100 developing ▬ flat Agent 36/100 agent ready Front door AI 1/6 silent Heartbeat 44/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 published contract 2 Agent Skills

Company Webinars Virtual Events Event Management Marketing Marketing Technology Demand Generation VideoEngagement MarketingLead Generation Software-as-a-Service

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 53.1/100 · developing

Contract Quality 4.6 / 19

Developer Ergonomics 9.0 / 15

Access Clarity 12.6 / 15

Operational Transparency 5.9 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/demio/"><img src="https://apis.io/badge/demio/card.svg" alt="Demio on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 24.6 — up to +18.9 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Developer Ergonomics scores 60.1 — up to +8.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/demio/apis.yml: open an issue on github.com/api-evangelist/demio to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Events and Ticketing Platforms	builds-on	35.3	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

Demio Events API

Events, Event Sessions (Dates) and registration.

Demio Intro API

Authorization checks.

Demio Reports API

Participation and attendance reporting.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Public Demio API

OPEN COLLECTION

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Pull the attendance report for a webinar Session

AGENT SKILL

Register an attendee and return their unique join link

AGENT SKILL

Demio API pricing

Prices published by Demio, read 2026-10-28 from www.demio.com/pricing.

Plan	Price
Starter (annual)	$45/mo Includes: Attendee Room 50
Growth (annual)	$117/mo Includes: Attendee Room 150/500/1,000/3,000
Premium (annual)	$196/mo Includes: Attendee Room 150/500/1,000/3,000; Dedicated CSM and priority support
Starter (monthly)	$63/mo Includes: Attendee Room 50
Growth (monthly)	$/mo Includes: Attendee Room 150/500/1,000/3,000
Zapier Integration Professional Services	$150

Plan details, limits and sources →

Rate limits

Burst requests: 180 requests per minute
Daily API calls (free trial account): 100 requests per day
Daily API calls (paying customer): 5000 requests per day

Rate-limit details →

Billed by: host / paid yearly · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Demio Plans Pricing

6 plans

PLANS

Demio Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Demio Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Demio

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Demio Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Demio Events

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Demio API Rules

63 rules · 61 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Demio Openapi Overlay

6 actions · update · demio-openapi.yml

DERIVED

Security Posture 2

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

Demio Authentication

apiKey · 4 schemes

SECURITY

Demio Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Demio Agentic Access

7 operations · 1 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Components

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

ToolCrosswalk

Examples

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

Support

HelpCenter

StatusPage

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

APIBlueprint

APIBlueprint

Overlay

Overlay

Source (apis.yml)

aid: demio
name: Demio
description: 'Demio is a browser-based webinar and virtual-event platform built for B2B marketing and sales teams, operated
  by Banzai International, Inc. (NASDAQ: BNZI). It runs live, automated/evergreen, on-demand and series webinars with no attendee
  download, and pairs them with customizable registration pages, embeddable registration forms, in-session engagement tools
  (polls, handouts, featured actions, chat), recordings, Showcase event listings and post-webinar analytics. Its public developer
  surface is the Public Demio API — a key/secret authorized REST API at https://my.demio.com/api/v1 covering Events, Event
  Sessions (Dates), attendee registration with unique join links, and per-Session participation reporting. Demio documents
  the API as an Apiary API Blueprint, publishes burst rate limits and daily call quotas, runs a public Atlassian Statuspage,
  ships one first-party PHP SDK from its meetdemio GitHub organization, and offers a Zapier app with registration, join, no-show
  and event-update triggers for teams that do not want to call the API directly.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/639df5c77a191c7268d2f9a2/63d939e13b301514d7b3dbab_60ee09e2a0845e4356fd7641_5a86d4765e69d200011f70a5_favicon-256.png
url: https://raw.githubusercontent.com/api-evangelist/demio/refs/heads/main/apis.yml
x-type: company
x-source: harvest:marketing-integration-graph
x-tier: active
x-tier-reason: public-rest-api-with-published-contract
x-parent-company: 'Banzai International, Inc. (NASDAQ: BNZI)'
x-related-repo: all/banzai
specificationVersion: '0.23'
created: '2026-08-12'
modified: '2026-09-16'
x-docs-platform: apiary
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-25
tags:
- Company
- Webinars
- Virtual Events
- Event Management
- Marketing
- Marketing Technology
- Demand Generation
- Video
- Engagement Marketing
- Lead Generation
- Software-as-a-Service
tags_raw:
- Company
- Webinars
- Virtual Events
- Event Management
- Marketing
- Marketing Technology
- Demand Generation
- Video
- Engagement Marketing
- Lead Generation
- SaaS
- API
apis:
- aid: demio:demio-events-api
  name: Demio Events API
  description: Events, Event Sessions (Dates) and registration.
  humanURL: https://publicdemioapi.docs.apiary.io
  baseURL: https://my.demio.com/api/v1
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/demio-events-api-openapi.yml
  - type: APIBlueprint
    url: openapi/demio-api-blueprint-original.apib
  - type: Documentation
    url: https://publicdemioapi.docs.apiary.io
  - type: APIReference
    url: https://publicdemioapi.docs.apiary.io
  - type: Authentication
    url: authentication/demio-authentication.yml
  - type: RateLimits
    url: rate-limits/demio-rate-limits.yml
  - type: ErrorCatalog
    url: errors/demio-problem-types.yml
  - type: Conventions
    url: conventions/demio-conventions.yml
  - type: DataModel
    url: data-model/demio-data-model.yml
  - type: LLMsTxt
    url: llms/demio-llms.txt
  - type: Sandbox
    url: sandbox/demio-sandbox.yml
- aid: demio:demio-intro-api
  name: Demio Intro API
  description: Authorization checks.
  humanURL: https://publicdemioapi.docs.apiary.io
  baseURL: https://my.demio.com/api/v1
  tags:
  - Intro
  properties:
  - type: OpenAPI
    url: openapi/demio-intro-api-openapi.yml
  - type: APIBlueprint
    url: openapi/demio-api-blueprint-original.apib
  - type: Documentation
    url: https://publicdemioapi.docs.apiary.io
  - type: APIReference
    url: https://publicdemioapi.docs.apiary.io
  - type: Authentication
    url: authentication/demio-authentication.yml
  - type: RateLimits
    url: rate-limits/demio-rate-limits.yml
  - type: ErrorCatalog
    url: errors/demio-problem-types.yml
  - type: Conventions
    url: conventions/demio-conventions.yml
  - type: DataModel
    url: data-model/demio-data-model.yml
  - type: LLMsTxt
    url: llms/demio-llms.txt
  - type: Sandbox
    url: sandbox/demio-sandbox.yml
- aid: demio:demio-reports-api
  name: Demio Reports API
  description: Participation and attendance reporting.
  humanURL: https://publicdemioapi.docs.apiary.io
  baseURL: https://my.demio.com/api/v1
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/demio-reports-api-openapi.yml
  - type: APIBlueprint
    url: openapi/demio-api-blueprint-original.apib
  - type: Documentation
    url: https://publicdemioapi.docs.apiary.io
  - type: APIReference
    url: https://publicdemioapi.docs.apiary.io
  - type: Authentication
    url: authentication/demio-authentication.yml
  - type: RateLimits
    url: rate-limits/demio-rate-limits.yml
  - type: ErrorCatalog
    url: errors/demio-problem-types.yml
  - type: Conventions
    url: conventions/demio-conventions.yml
  - type: DataModel
    url: data-model/demio-data-model.yml
  - type: LLMsTxt
    url: llms/demio-llms.txt
  - type: Sandbox
    url: sandbox/demio-sandbox.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/demio-agentic-access.yml
- type: DomainSecurity
  url: security/demio-domain-security.yml
- type: Website
  url: https://www.demio.com
- type: DeveloperPortal
  url: https://publicdemioapi.docs.apiary.io
- type: Documentation
  url: https://publicdemioapi.docs.apiary.io
- type: APIReference
  url: https://publicdemioapi.docs.apiary.io
- type: GettingStarted
  url: https://help.demio.com/en/articles/4544025-api-limitations
- type: Support
  url: https://help.demio.com/en/
- type: HelpCenter
  url: https://help.demio.com/en/
- type: Blog
  url: https://www.demio.com/blog
- type: GitHubOrganization
  url: https://github.com/meetdemio
- type: Pricing
  url: https://www.demio.com/pricing
- type: SignUp
  url: https://www.demio.com/free-trial
- type: Login
  url: https://my.demio.com/login
- type: TermsOfService
  url: https://www.demio.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.banzai.io/legal/privacy-policy
- type: StatusPage
  url: https://status.demio.com
- type: Integrations
  url: https://www.demio.com/integrations
- type: OpenAPI
  url: openapi/_original/demio-openapi.yml
- type: APIBlueprint
  url: openapi/demio-api-blueprint-original.apib
- type: Authentication
  url: authentication/demio-authentication.yml
- type: Conventions
  url: conventions/demio-conventions.yml
- type: ErrorCatalog
  url: errors/demio-problem-types.yml
- type: RateLimits
  url: rate-limits/demio-rate-limits.yml
- type: Plans
  url: plans/demio-plans-pricing.yml
- type: Lifecycle
  url: lifecycle/demio-lifecycle.yml
- type: Conformance
  url: conformance/demio-conformance.yml
- type: DataModel
  url: data-model/demio-data-model.yml
- type: Sandbox
  url: sandbox/demio-sandbox.yml
- type: Packages
  url: packages/demio-packages.yml
- type: SDKs
  url: packages/demio-packages.yml
- type: Components
  url: components/demio-components.yml
- type: ToolCrosswalk
  url: mcp/demio-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/demio-llms.txt
- type: LLMsTxt
  name: Demio Help Center llms.txt (provider-served, verbatim)
  url: llms/demio-help-center-llms.txt
- type: Overlay
  url: overlays/demio-openapi-overlay.yaml
- type: Examples
  url: examples/demio-examples.yml
x-enrichment:
  date: '2026-08-12'
  status: enriched
  artifacts_added: 28
  pass: local-v1
x-vouched-by:
- Drip
- Improvado
- Ontraport
x-vouch-count: 3

Demio API — frequently asked questions

Does Demio have an API?

Yes. APIs.io lists 3 APIs from Demio, including Demio Events API, Demio Intro API and Demio Reports API.

Is there an OpenAPI specification for the Demio API?

Yes. APIs.io indexes 3 OpenAPI specifications for Demio, each linked for download from this page.

How do I authenticate with the Demio API?

Demio uses bearer-token authentication (apiKey · 4 schemes). The details are profiled on APIs.io as Demio Authentication.

How much does the Demio API cost?

Demio publishes its prices; its Starter (annual) plan is $45/mo as of 2026-10-28. APIs.io lists 6 pricing plans for Demio, with each plan's price, limits and inclusions under Pricing on this page.

Is the Demio API ready for AI agents?

Demio has a Kin Score of 53.1 out of 100 (developing) and an Agent Readiness score of 35.9 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/demio"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/demio/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/demio/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.