App.net website screenshot

App.net

App.net (ADN) was a paid, ad-free real-time social networking and microblogging platform launched in 2012 by Dalton Caldwell's Mixed Media Labs after a public crowdfunding campaign. It was explicitly developer-first: the App.net Stream API exposed posts, users, follows, files, channels, private messaging, filters and a real-time streaming/subscription surface, all governed by OAuth 2.0 bearer tokens and a consistent data/meta response envelope. Third-party clients (Alpha, and many community apps) were built entirely on the public API. App.net announced in 2016 that it would not renew and the service was shut down on 2017-03-14; the live API hosts (api.app.net, developers.app.net) no longer resolve and the app.net domain is now operated by an unrelated apps directory. The API documentation (appdotnet/api-spec), terms of service, and official SDKs remain publicly preserved on the appdotnet GitHub organization, which is the basis for this profile.

App.net publishes 1 API on the APIs.io network. Tagged areas include Company, Social, Microblogging, Messaging, and Real Time.

App.net’s developer surface includes documentation, authentication, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
21.4/100 emerging ▬ flat Agent 24/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs
CompanySocialMicrobloggingMessagingReal TimeStreamingDeveloper PlatformOAuthDefunct

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 21.4/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 24/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/appnet: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

App.net Stream API

The App.net Stream API — a RESTful, OAuth 2.0-secured social API covering posts, users, follows, channels/messages, files, filters, and a real-time streaming surface. Responses ...

Rate Limits 1

Documented rate limits and quota policies.

Appnet Rate Limits

3 limits

RATE LIMITS

Security Posture 1

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

Appnet Authentication

oauth2 · 1 scheme

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Appnet Scopes

9 scopes · authorizationCode/implicit/password

9 scopes

SCOPES

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance
 Lifecycle
Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService

Source (apis.yml)

apis.yml Raw ↑ 
aid: appnet
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/appnet.png
name: App.net
description: 'App.net (ADN) was a paid, ad-free real-time social networking and microblogging platform launched in 2012 by
  Dalton Caldwell''s Mixed Media Labs after a public crowdfunding campaign. It was explicitly developer-first: the App.net
  Stream API exposed posts, users, follows, files, channels, private messaging, filters and a real-time streaming/subscription
  surface, all governed by OAuth 2.0 bearer tokens and a consistent data/meta response envelope. Third-party clients (Alpha,
  and many community apps) were built entirely on the public API. App.net announced in 2016 that it would not renew and the
  service was shut down on 2017-03-14; the live API hosts (api.app.net, developers.app.net) no longer resolve and the app.net
  domain is now operated by an unrelated apps directory. The API documentation (appdotnet/api-spec), terms of service, and
  official SDKs remain publicly preserved on the appdotnet GitHub organization, which is the basis for this profile.'
url: https://raw.githubusercontent.com/api-evangelist/appnet/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-shutdown-date: '2017-03-14'
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Social
- Microblogging
- Messaging
- Real Time
- Streaming
- Developer Platform
- OAuth
- Defunct
apis:
- name: App.net Stream API
  description: The App.net Stream API — a RESTful, OAuth 2.0-secured social API covering posts, users, follows, channels/messages,
    files, filters, and a real-time streaming surface. Responses use a uniform {data, meta} envelope with cursor pagination
    and X-RateLimit-* headers. Service is retired (shut down 2017-03-14); documentation is preserved at appdotnet/api-spec.
  humanURL: https://github.com/appdotnet/api-spec
  baseURL: https://api.app.net/stream/0/
  tags:
  - Social
  - Microblogging
  - Messaging
  - Streaming
  properties:
  - type: Documentation
    url: https://github.com/appdotnet/api-spec
  - type: Authentication
    url: authentication/appnet-authentication.yml
  - type: OAuthScopes
    url: scopes/appnet-scopes.yml
  - type: RateLimits
    url: rate-limits/appnet-rate-limits.yml
  - type: ErrorCatalog
    url: errors/appnet-problem-types.yml
  - type: Conventions
    url: conventions/appnet-conventions.yml
common:
- type: GitHubOrganization
  url: https://github.com/appdotnet
- type: Documentation
  url: https://github.com/appdotnet/api-spec
- type: TermsOfService
  url: https://github.com/appdotnet/terms-of-service
- type: Authentication
  url: authentication/appnet-authentication.yml
- type: OAuthScopes
  url: scopes/appnet-scopes.yml
- type: Packages
  url: packages/appnet-packages.yml
- type: SDKs
  url: packages/appnet-packages.yml
- type: Conventions
  url: conventions/appnet-conventions.yml
- type: ErrorCatalog
  url: errors/appnet-problem-types.yml
- type: Conformance
  url: conformance/appnet-conformance.yml
- type: Lifecycle
  url: lifecycle/appnet-lifecycle.yml
- type: RateLimits
  url: rate-limits/appnet-rate-limits.yml
- type: LLMsTxt
  url: llms/appnet-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence