Multiply
Multiply is an AI-native media agency built specifically for B2B companies, pairing human paid-media strategists with a fleet of 25+ specialized AI agents to run and continuously optimize LinkedIn and Google Search advertising. Its "Self-Learning Advertising" platform plugs into a company's own data — sales call recordings (e.g. Gong), CRM closed-won outcomes, case studies, website content, competitive kill sheets and product documentation — and runs hundreds of structured ad experiments that refine audiences, copy and creative from real revenue signals. Multiply is a managed service (not a self-serve API product), founded by Matt Jayson (ex-Google, ex-Brex) and Ashish Warty (ex-HackerOne SVP Engineering, ex-Dropbox), and raised $9.5M led by Mayfield in March 2026. It was added to the API Evangelist network as a Mayfield portfolio company; two enrichment passes confirmed it publishes no public API, developer documentation, SDK, or /.well-known/ discovery surface. It does publish an llms.txt and three named service tiers — Growth (from $6K/mo), Scale (from $12K/mo) and Enterprise — priced against monthly ad spend rather than API usage.
Multiply is profiled on the APIs.io network. Tagged areas include Company, Advertising, Marketing, B2B, and Artificial Intelligence.
Multiply’s developer surface includes pricing, engineering blog, and 5 more developer resources.
Kin Score
Pricing Plans 1
Published pricing tiers and plan structures.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Access & Security 1
Authentication, authorization, and security posture
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API