Yesware

Yesware is a sales engagement and email productivity platform that lives inside Gmail and Outlook, helping sales teams track email opens, link clicks, and attachment views in real time, run multi-touch outreach campaigns and sequences, use shared email templates, schedule meetings, and prospect from a database of 100M+ B2B contacts. It provides bi-directional Salesforce sync to log activities automatically and reporting dashboards on template and team performance. Yesware does not currently expose a public developer REST API; its integration surface is delivered through Salesforce sync, native inbox extensions, and iPaaS connectors. It was surfaced as a portfolio company of Battery Ventures and GV and profiled in the API Evangelist network. Backed by Battery Ventures and GV.

Yesware is profiled on the APIs.io network. Tagged areas include Company, Sales Engagement, Email Tracking, Sales Productivity, and CRM.

Yesware’s developer surface includes documentation, support, engineering blog, pricing, signup flow, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
21.8/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessApproval
0 APIs
CompanySales EngagementEmail TrackingSales ProductivityCRMSalesforceOutreachEmail Marketing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 21.8/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 4/100 · 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 4 / 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/yesware: 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 3

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

Yesware Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Yesware Vulnerability Disclosure

contact published

SECURITY

Yesware Trust Center

SOC 2 Type II, ISO 27001, GDPR, Skyhigh CloudTrust Enterprise-Ready, Salesforce Security Review

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp
SignUp
 Login
Login

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 TrustCenter
TrustCenter
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 Compliance
Compliance

Operate 2

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter

Commercial 2

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: yesware
name: Yesware
description: Yesware is a sales engagement and email productivity platform that lives inside Gmail and Outlook, helping sales
  teams track email opens, link clicks, and attachment views in real time, run multi-touch outreach campaigns and sequences,
  use shared email templates, schedule meetings, and prospect from a database of 100M+ B2B contacts. It provides bi-directional
  Salesforce sync to log activities automatically and reporting dashboards on template and team performance. Yesware does
  not currently expose a public developer REST API; its integration surface is delivered through Salesforce sync, native inbox
  extensions, and iPaaS connectors. It was surfaced as a portfolio company of Battery Ventures and GV and profiled in the
  API Evangelist network. Backed by Battery Ventures and GV.
url: https://raw.githubusercontent.com/api-evangelist/yesware/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
- gv
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Requires approval
  confidence: medium
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://www.yesware.com/wp-content/uploads/2021/03/yesware-logo.png
tags:
- Company
- Sales Engagement
- Email Tracking
- Sales Productivity
- CRM
- Salesforce
- Outreach
- Email Marketing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.yesware.com
- type: Documentation
  url: https://docs.yesware.com/docs/
- type: Support
  url: https://help.yesware.com/
- type: HelpCenter
  url: https://help.yesware.com/
- type: Blog
  url: https://www.yesware.com/blog/
- type: Integrations
  url: https://www.yesware.com/integrations
- type: Pricing
  url: https://www.yesware.com/pricing/
- type: SignUp
  url: https://www.yesware.com/sign-up
- type: Login
  url: https://www.yesware.com/user/sign-in
- type: TermsOfService
  url: https://www.yesware.com/terms/
- type: GitHubOrganization
  url: https://github.com/Yesware
- type: LLMsTxt
  url: llms/yesware-llms.txt
- type: DomainSecurity
  url: security/yesware-domain-security.yml
- type: TrustCenter
  url: security/yesware-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/yesware-vulnerability-disclosure.yml
- type: Security
  url: https://www.yesware.com/security/
- type: Compliance
  url: https://www.yesware.com/security/
- type: WellKnown
  url: well-known/yesware-well-known.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 5
  pass: local-v1