Elk

Elk is a nimble Mastodon web client that provides a modern interface for interacting with the Mastodon and Fediverse social network. It supports standard Mastodon API endpoints for social networking, timelines, notifications, and account management.

Elk publishes 1 API on the APIs.io network. Tagged areas include Fediverse, Mastodon, Open Source, and Social Networking.

Elk’s developer surface includes support and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.3/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemium

1 APIs

FediverseMastodonOpen SourceSocial Networking

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 19.3/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 4.8 / 13

Governance 0.0 / 12

Discoverability 5.7 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

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

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/elk: 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.

Elk Client API

Client-side API for Elk, a nimble Mastodon web client providing access to Fediverse social networking functionality.

Pricing Plans 1

Published pricing tiers and plan structures.

Elk Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Elk Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Elk Finops

FINOPS

Security Posture 2

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

Elk Domain Security

TLSv1.3 · DNSSEC

SECURITY

Elk Vulnerability Disclosure

disclosure policy published

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: elk
name: Elk
description: Elk is a nimble Mastodon web client that provides a modern interface for interacting with the Mastodon and Fediverse
  social network. It supports standard Mastodon API endpoints for social networking, timelines, notifications, and account
  management.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/elk.png
tags:
- Fediverse
- Mastodon
- Open Source
- Social Networking
url: https://elk.zone
created: '2024-01-01'
modified: '2026-03-16'
position: Consumer
access: 3rd-Party
specificationVersion: '0.19'
apis:
- aid: elk:elk-client-api
  name: Elk Client API
  description: Client-side API for Elk, a nimble Mastodon web client providing access to Fediverse social networking functionality.
  humanURL: https://elk.zone
  tags:
  - Fediverse
  - Mastodon
  - Social
  properties:
  - type: Documentation
    url: https://docs.elk.zone
  - type: SourceCode
    url: https://github.com/elk-zone/elk
  - type: Specification
    url: https://docs.joinmastodon.org/api/
common:
- type: VulnerabilityDisclosure
  url: security/elk-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/elk-domain-security.yml
- type: Website
  url: https://elk.zone
- type: GitHubOrganization
  url: https://github.com/elk-zone
- type: Support
  url: https://github.com/elk-zone/elk/issues
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com