Chalkable

Chalkable was a K-12 education technology company that provided a cloud-based student information system (SIS), learning management, and an education "app store" letting schools run third-party classroom apps on top of shared student data. Its developer platform exposed a RESTful API (OAuth 2.0) over school data points such as student and teacher scheduling, real-time attendance, grading and discipline records, announcements, messaging, and notifications, with partner apps rendered inside an iframe within the Chalkable classroom. Chalkable was acquired by PowerSchool on October 12, 2016, and the product line was absorbed into PowerSchool; the original developer surface (dev.chalkable.com and classroom.chalkable.com/Developer) is no longer operational. This profile was surfaced as a portfolio company of 500 Global and added to the API Evangelist network as a stub for enrichment.

Chalkable is profiled on the APIs.io network. Tagged areas include Company, Education, EdTech, K-12, and Student Information System.

🌐 Visit website 📡 Source on GitHub
6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyEducationEdTechK-12Student Information SystemLearning ManagementAttendanceGradingSchoolsAcquired

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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 0 / 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/chalkable: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Chalkable Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: chalkable
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/chalkable.png
name: Chalkable
description: Chalkable was a K-12 education technology company that provided a cloud-based student information system (SIS),
  learning management, and an education "app store" letting schools run third-party classroom apps on top of shared student
  data. Its developer platform exposed a RESTful API (OAuth 2.0) over school data points such as student and teacher scheduling,
  real-time attendance, grading and discipline records, announcements, messaging, and notifications, with partner apps rendered
  inside an iframe within the Chalkable classroom. Chalkable was acquired by PowerSchool on October 12, 2016, and the product
  line was absorbed into PowerSchool; the original developer surface (dev.chalkable.com and classroom.chalkable.com/Developer)
  is no longer operational. This profile was surfaced as a portfolio company of 500 Global and added to the API Evangelist
  network as a stub for enrichment.
url: https://raw.githubusercontent.com/api-evangelist/chalkable/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: powerschool
x-acquired-date: '2016-10-12'
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Education
- EdTech
- K-12
- Student Information System
- Learning Management
- Attendance
- Grading
- Schools
- Acquired
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/chalkable-domain-security.yml
- type: Website
  url: https://chalkable.com
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence