YesGraph

YesGraph was a San Francisco startup (YC W13) that provided a referral and contact-recommendation API. Its HTTP API and SDKs let mobile and web apps upload a user's address book and receive a machine-learning ranked list of which contacts a user should invite, powering smarter invite and referral flows. Founded by Ivan Kirigin (ex-Dropbox, ex-Facebook), YesGraph worked with companies including Airbnb, Atlassian, Gusto and Hired. In 2017 the team and its social-graph technology joined Lyft to strengthen Lyft's in-house referral program, and the public YesGraph API was deactivated on August 31, 2017. This profile documents the historical developer surface; the API is retired and no longer accepting traffic.

YesGraph is profiled on the APIs.io network. Tagged areas include Company, Referrals, Recommendations, Contacts, and Social Graph.

🌐 Visit website 📡 Source on GitHub

9.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyReferralsRecommendationsContactsSocial GraphGrowthMachine LearningInvitations

Kin Score

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

Composite quality — 9.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 1.7 / 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

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Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Deprecation

Deprecation

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: yesgraph
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/yesgraph.png
name: YesGraph
description: YesGraph was a San Francisco startup (YC W13) that provided a referral and contact-recommendation API. Its HTTP
  API and SDKs let mobile and web apps upload a user's address book and receive a machine-learning ranked list of which contacts
  a user should invite, powering smarter invite and referral flows. Founded by Ivan Kirigin (ex-Dropbox, ex-Facebook), YesGraph
  worked with companies including Airbnb, Atlassian, Gusto and Hired. In 2017 the team and its social-graph technology joined
  Lyft to strengthen Lyft's in-house referral program, and the public YesGraph API was deactivated on August 31, 2017. This
  profile documents the historical developer surface; the API is retired and no longer accepting traffic.
url: https://raw.githubusercontent.com/api-evangelist/yesgraph/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bloomberg-beta
x-tier: stub
x-tier-reason: portfolio-lead
x-status: retired
x-retired: '2017-08-31'
x-retired-reason: Team and technology acqui-hired by Lyft; public API deactivated 2017-08-31.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Referrals
- Recommendations
- Contacts
- Social Graph
- Growth
- Machine Learning
- Invitations
apis: []
common:
- type: DomainSecurity
  url: security/yesgraph-domain-security.yml
- type: Packages
  url: packages/yesgraph-packages.yml
- type: SDKs
  url: packages/yesgraph-packages.yml
- type: Lifecycle
  url: lifecycle/yesgraph-lifecycle.yml
- type: Deprecation
  url: lifecycle/yesgraph-lifecycle.yml
- type: Website
  url: https://www.yesgraph.com/
- type: GitHubOrganization
  url: https://github.com/yesgraph
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 3
  pass: local-v1