Decagon
Decagon is a San Francisco-based AI customer experience company founded in August 2023 by Jesse Zhang and Ashwin Sreenivas, with additional offices in New York City and London. The company builds, optimizes, and scales AI agents that resolve customer support across voice, chat, email, and SMS channels for enterprise brands including Notion, Eventbrite, Duolingo, Chime, ClassPass, Hertz, Rippling, Noom, Oura, Samsara, Dropbox, Mercado Libre, Bilt, Cash App, Square, Fanatics, and Riot Games. Its platform centers on Agent Operating Procedures (AOPs) — natural-language workflow definitions executed by AI agents — alongside Watchtower for continuous QA, Experiments for live A/B testing, Insights & Reporting analytics, and Suggestions for AI-powered knowledge management. Decagon connects to customer stacks through pre-built integrations (Salesforce, Zendesk, Intercom, Confluence, Contentful, Kustomer, Amazon Connect, RingCentral, Stripe), Model Context Protocol (MCP) servers, and custom API endpoints, but the platform's own developer-facing APIs, SDKs, OpenAPI specs, and technical setup documentation are not published publicly and are made available only to contracted enterprise customers and implementation partners. Decagon has raised $481M across rounds led by Accel, Andreessen Horowitz, Index Ventures, and Coatue Management, reaching a $4.5B valuation following its January 2026 Series D, and was ranked #38 on the 2026 CNBC Disruptor 50 list.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Decagon the way a machine reads it — 2 machine-readable artifacts, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Decagon scores 15.7/100 (emerging), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Decagon
Each block below is one kind of artifact we hold for Decagon. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Decagon — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 8
Portal, sign-up, and the first successful call
Scroll within the panel for all 8 ·
Design & Contract 1
Pagination, idempotency, versioning, errors, and events
Access & Security 4
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 6
The organization behind the API
Other 12
Properties that don't map to a standard resource type
Scroll within the panel for all 12 ·
← All providers · Data indexed from github.com/api-evangelist/decagon-ai · machine-readable index on apis.io