Ello

Ello is a public-benefit AI education company building a 1:1 AI reading and math tutor for children ages 4-9. Its consumer app pairs proprietary child-speech recognition (trained on 100K+ hours of kids' audio) with generative AI and adaptive teaching agents to deliver personalized, sub-second, voice-based reading instruction grounded in the Science of Reading, plus a large catalog of leveled e-books, a "Storytime" create-your-own story feature, and parent progress reports. Recognized as one of TIME's Best Inventions of 2024 and backed by Y Combinator, Goodwater, Project A, and Homebrew, Ello is a consumer (B2C) product with no public developer API program at this time.

Ello is profiled on the APIs.io network. Tagged areas include Company, Ai, Education, EdTech, and Reading.

Ello’s developer surface includes signup flow, support, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.5/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyAiEducationEdTechReadingLiteracySpeech RecognitionChildrenConsumer

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 14.5/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 20

Commercial Clarity 6.8 / 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/ello: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

About

About

Careers

Careers

Source (apis.yml)

aid: ello
name: Ello
description: Ello is a public-benefit AI education company building a 1:1 AI reading and math tutor for children ages 4-9.
  Its consumer app pairs proprietary child-speech recognition (trained on 100K+ hours of kids' audio) with generative AI and
  adaptive teaching agents to deliver personalized, sub-second, voice-based reading instruction grounded in the Science of
  Reading, plus a large catalog of leveled e-books, a "Storytime" create-your-own story feature, and parent progress reports.
  Recognized as one of TIME's Best Inventions of 2024 and backed by Y Combinator, Goodwater, Project A, and Homebrew, Ello
  is a consumer (B2C) product with no public developer API program at this time.
url: https://raw.githubusercontent.com/api-evangelist/ello/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- homebrew
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://cdn.sanity.io/images/syk5spr9/production/ec494ad4e15d0f28ec8b04d522147735034ba902-1200x630.webp
tags:
- Company
- Ai
- Education
- EdTech
- Reading
- Literacy
- Speech Recognition
- Children
- Consumer
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/ello-domain-security.yml
- type: Website
  url: https://www.ello.com
- type: About
  url: https://www.ello.com/about
- type: SignUp
  url: https://www.ello.com/join-waitlist
- type: Support
  url: https://www.ello.com/contact
- type: TermsOfService
  url: https://www.ello.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://www.ello.com/legal/privacy-policy
- type: Careers
  url: https://jobs.ashbyhq.com/ello
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence