Entrepreneur First

Entrepreneur First (EF) is a talent investor that backs exceptional individuals before they have a company, pairing them into cofounding teams and providing pre-seed capital, mentorship, and a global network to build technology startups from scratch. Founded in London in 2011 by Matt Clifford and Alice Bentinck, EF runs cohort-based programs across Europe, Asia, and North America and has helped launch hundreds of venture-backed companies. It was surfaced as a portfolio company of Greylock and added to the API Evangelist network; EF publishes no public developer API surface.

Entrepreneur First is profiled on the APIs.io network. Tagged areas include Company, Venture Capital, Talent Investor, Startups, and Accelerator.

Entrepreneur First’s developer surface includes signup flow, support, engineering blog, and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub

12.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyVenture CapitalTalent InvestorStartupsAcceleratorEntrepreneurshipFoundersOther

Kin Score

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

Composite quality — 12.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.7 / 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/entrepreneur-first: 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 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: entrepreneur-first
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/entrepreneur-first.png
name: Entrepreneur First
description: Entrepreneur First (EF) is a talent investor that backs exceptional individuals before they have a company, pairing
  them into cofounding teams and providing pre-seed capital, mentorship, and a global network to build technology startups
  from scratch. Founded in London in 2011 by Matt Clifford and Alice Bentinck, EF runs cohort-based programs across Europe,
  Asia, and North America and has helped launch hundreds of venture-backed companies. It was surfaced as a portfolio company
  of Greylock and added to the API Evangelist network; EF publishes no public developer API surface.
url: https://raw.githubusercontent.com/api-evangelist/entrepreneur-first/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- greylock
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Venture Capital
- Talent Investor
- Startups
- Accelerator
- Entrepreneurship
- Founders
- Other
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/entrepreneur-first-domain-security.yml
- type: Website
  url: https://www.joinef.com/
- type: SignUp
  url: https://apply.joinef.com
- type: Support
  url: https://www.joinef.com/contact/
- type: Blog
  url: https://www.joinef.com/insights/
- type: PrivacyPolicy
  url: https://www.joinef.com/privacy-policy/
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence