Agari

Agari is an email-security provider that pioneered and helped author the DMARC email-authentication standard to protect organizations from phishing, business email compromise (BEC), email spoofing, and brand impersonation. Founded in 2009, Agari was acquired by HelpSystems (now Fortra) in May 2021 and is delivered as Fortra's email-security portfolio, including DMARC Protection / Brand Protection, Phishing Defense, and Phishing Response. The Agari Platform exposes a RESTful JSON API secured with OAuth 2.0 Client Credentials for retrieving security telemetry, auditing users and domains, tracking DMARC policy enforcement, and integrating Agari data into SIEM and SOAR tooling. It was originally backed by Norwest Venture Partners and other venture investors before its acquisition.

Agari publishes 1 API on the APIs.io network. Tagged areas include Company, Email Security, Cybersecurity, DMARC, and Email Authentication.

Agari’s developer surface includes documentation, API reference, getting-started guide, authentication, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

16.0/100 emerging ▬ flat Agent 5/100 agent aware Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2

AccessSelf serve

1 APIs

Company Email Security Cybersecurity DMARC Email Authentication Phishing Anti-Phishing Brand Protection REST

Kin Score

Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2

Composite quality — 16.0/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 6.2 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 5/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

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/agari: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Conformance

Lifecycle

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: agari
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/agari.png
name: Agari
description: Agari is an email-security provider that pioneered and helped author the DMARC email-authentication standard
  to protect organizations from phishing, business email compromise (BEC), email spoofing, and brand impersonation. Founded
  in 2009, Agari was acquired by HelpSystems (now Fortra) in May 2021 and is delivered as Fortra's email-security portfolio,
  including DMARC Protection / Brand Protection, Phishing Defense, and Phishing Response. The Agari Platform exposes a RESTful
  JSON API secured with OAuth 2.0 Client Credentials for retrieving security telemetry, auditing users and domains, tracking
  DMARC policy enforcement, and integrating Agari data into SIEM and SOAR tooling. It was originally backed by Norwest Venture
  Partners and other venture investors before its acquisition.
url: https://raw.githubusercontent.com/api-evangelist/agari/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- norwest-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
x-acquired-by: fortra
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Email Security
- Cybersecurity
- DMARC
- Email Authentication
- Phishing
- Anti-Phishing
- Brand Protection
- REST
tags_raw:
- Company
- Email Security
- Cybersecurity
- DMARC
- Email Authentication
- Phishing
- Anti-Phishing
- Brand Protection
- API
- REST
apis:
- name: Agari Platform API
  description: RESTful JSON API for the Agari Platform, secured with OAuth 2.0 Client Credentials. Provides access to Agari
    email-security telemetry — alerts, domain tracking, DMARC policy-enforcement reporting, and user/domain auditing — with
    standard pagination, sorting, filtering, and searching, for integration into SIEM/SOAR workflows.
  humanURL: https://developers.agari.com/agari-platform
  baseURL: https://api.agari.com/v1
  properties:
  - type: Documentation
    url: https://developers.agari.com/agari-platform/docs
  - type: APIReference
    url: https://developers.agari.com/agari-platform/reference/overview
  - type: GettingStarted
    url: https://developers.agari.com/agari-platform/docs/quick-start
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://agari.com
- type: DeveloperPortal
  url: https://developers.agari.com/agari-platform
- type: Documentation
  url: https://developers.agari.com/agari-platform/docs
- type: APIReference
  url: https://developers.agari.com/agari-platform/reference/overview
- type: GettingStarted
  url: https://developers.agari.com/agari-platform/docs/quick-start
- type: Authentication
  url: authentication/agari-authentication.yml
- type: Conventions
  url: conventions/agari-conventions.yml
- type: ErrorCatalog
  url: errors/agari-problem-types.yml
- type: Conformance
  url: conformance/agari-conformance.yml
- type: Lifecycle
  url: lifecycle/agari-lifecycle.yml
- type: DomainSecurity
  url: security/agari-domain-security.yml
- type: LLMsTxt
  url: llms/agari-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/agari"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/agari/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/agari/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.