Doppel

Doppel is an AI-native social engineering defense platform that protects brands, executives, and employees from AI-powered impersonation, phishing, fraud, and account takeover across domains, social media, ads, messaging apps, app stores, crypto surfaces, and the dark web. Its real-time Threat Graph correlates signals to detect and dismantle attacker infrastructure, unifying Digital Risk Protection, Human Risk Management, and Email Security. Doppel exposes a REST API (https://api.doppel.com/v1) for Brand Protection alerts, URL scanning, reports, protected assets, and phishing-simulation campaigns, plus webhooks for real-time events. Backed by a16z and Bessemer Venture Partners.

Doppel publishes 1 API on the APIs.io network. Tagged areas include Company, Security, Cybersecurity, Digital Risk Protection, and Social Engineering Defense.

The Doppel catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Doppel’s developer surface includes documentation, API reference, getting-started guide, authentication, engineering blog, support, changelog, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

54.3/100 developing Agent 57/100 agent ready Full breakdown ↓
scored 2026-07-20 · rubric v0.4

1 APIs 1 MCP Servers 0 Features

CompanySecurityCybersecurityDigital Risk ProtectionSocial Engineering DefenseBrand ProtectionAnti-PhishingThreat IntelligenceHuman Risk ManagementTakedowns

API Rating

API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4

Composite quality — 54.3/100 · developing

Contract Quality 15.1 / 25

Developer Ergonomics 13.5 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 6.5 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 57/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 15

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 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/doppel: 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 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AsyncAPI

AsyncAPI

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

Conformance

DataModel

Webhooks

Access & Security 6

Authentication, authorization, and security posture

Authentication

Security

TrustCenter

Compliance

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Operate 4

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: doppel
name: Doppel
description: Doppel is an AI-native social engineering defense platform that protects brands, executives, and employees from
  AI-powered impersonation, phishing, fraud, and account takeover across domains, social media, ads, messaging apps, app stores,
  crypto surfaces, and the dark web. Its real-time Threat Graph correlates signals to detect and dismantle attacker infrastructure,
  unifying Digital Risk Protection, Human Risk Management, and Email Security. Doppel exposes a REST API (https://api.doppel.com/v1)
  for Brand Protection alerts, URL scanning, reports, protected assets, and phishing-simulation campaigns, plus webhooks for
  real-time events. Backed by a16z and Bessemer Venture Partners.
url: https://raw.githubusercontent.com/api-evangelist/doppel/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://prod-cms.doppel.com/sites/default/files/2025-11/Open_Graph_Image_0.png
tags:
- Company
- Security
- Cybersecurity
- Digital Risk Protection
- Social Engineering Defense
- Brand Protection
- Anti-Phishing
- Threat Intelligence
- Human Risk Management
- Takedowns
apis:
- name: Doppel API
  description: Doppel V1 REST API — create and triage Brand Protection alerts on suspicious URLs and phone numbers, scan URLs
    for suspiciousness, submit and manage reports, manage brands and protected assets, and read Human Risk Management phishing-simulation
    campaigns and events. Authenticated with x-api-key + x-user-api-key headers. Six webhooks deliver real-time events.
  humanURL: https://doppel.readme.io/reference
  baseURL: https://api.doppel.com/v1
  tags:
  - Security
  - Brand Protection
  - Threat Intelligence
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/doppel-openapi-original.yml
  - type: APIReference
    url: https://doppel.readme.io/reference
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.doppel.com/
- type: DeveloperPortal
  url: https://doppel.readme.io/
- type: Documentation
  url: https://doppel.readme.io/docs/authentication
- type: APIReference
  url: https://doppel.readme.io/reference
- type: GettingStarted
  url: https://doppel.readme.io/docs/submit-alert
- type: Authentication
  url: authentication/doppel-authentication.yml
- type: Blog
  url: https://www.doppel.com/blog
- type: Support
  url: https://www.doppel.com/contact
- type: StatusPage
  url: https://doppel.instatus.com/
- type: ChangeLog
  url: https://doppel.readme.io/changelog
- type: ChangeLog
  url: changelog/doppel-changelog.yml
- type: Login
  url: https://vision.doppel.com/
- type: TermsOfService
  url: https://www.doppel.com/legal/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.doppel.com/legal/privacy-policy
- type: Security
  url: https://www.doppel.com/security/responsible-disclosure-policy
- type: TrustCenter
  url: security/doppel-trust-center.yml
- type: Compliance
  url: https://trust.doppel.com/
- type: LLMsTxt
  url: llms/doppel-llms.txt
- type: Lifecycle
  url: lifecycle/doppel-lifecycle.yml
- type: Conventions
  url: conventions/doppel-conventions.yml
- type: ErrorCatalog
  url: errors/doppel-problem-types.yml
- type: Conformance
  url: conformance/doppel-conformance.yml
- type: DataModel
  url: data-model/doppel-data-model.yml
- type: Overlay
  url: overlays/doppel-openapi-overlay.yaml
- type: MCPServer
  url: mcp/doppel-mcp.yml
- type: AsyncAPI
  url: asyncapi/doppel-webhooks-asyncapi.yml
- type: Webhooks
  url: asyncapi/doppel-webhooks-asyncapi.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/doppel-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/doppel-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Doppel

API Rating

APIs

Doppel API

MCP Servers

doppel-mcp.yml

Event Specifications

Doppel Webhooks

Resources