mxHero website screenshot

mxHero

mxHERO Inc. is the pioneer of email-to-cloud content management, based in San Francisco and a long-time Box partner. Its Mail2Cloud platform is a bridge that intelligently captures email and attachments (in-flight or at-rest) over SMTP/S and IMAP/S and routes them, bi-directionally, into cloud content platforms such as Box, Egnyte, Microsoft OneDrive, Google Drive, and Dropbox — without retaining the content itself. Mail2Cloud Advanced adds an AI email-knowledge layer: captured email is deduplicated, metadata-preserved, and stored in an isolated per-tenant vector database that an official Model Context Protocol (MCP) server exposes to AI agents for secure email search and knowledge recovery, with a V3 REST API for dataset and S/MIME management.

mxHero publishes 1 API on the APIs.io network. Tagged areas include Company, Email, Cloud Storage, Content Management, and Email to Cloud.

mxHero’s developer surface includes documentation, engineering blog, pricing, authentication, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
15.9/100 emerging ▬ flat Agent 12/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
1 APIs 1 MCP Servers
CompanyEmailCloud StorageContent ManagementEmail to CloudArtificial IntelligenceMCPEmail SearchComplianceCollaboration

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 15.9/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 5.8 / 20
Access Clarity 2.1 / 20
Operational Transparency 0.3 / 13
Contract Governance 0.0 / 12
Discoverability 7.6 / 10
Agent readiness — 12/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 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 5 / 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 Well-Known Document 0 / 5
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/mxhero: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

mxHERO Mail2Cloud Advanced (AI Email Knowledge)

AI email knowledge-recovery service. Captured company email is optimized and stored in an isolated per-tenant vector database, then exposed to AI agents through an official MCP ...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

mxHero MCP Server

Official mxHERO Mail2Cloud Advanced MCP server. Provides AI agents with secure, multi-account email search and knowledge recovery over a company's captured email data, stored in...

MCP SERVER

Security Posture 2

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

Mxhero Authentication

token/apiKey · 2 schemes

SECURITY

Mxhero Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

HelpCenter
HelpCenter

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 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

Products
Products

Source (apis.yml)

apis.yml Raw ↑ 
aid: mxhero
name: mxHero
description: 'mxHERO Inc. is the pioneer of email-to-cloud content management, based in San Francisco and a long-time Box
  partner. Its Mail2Cloud platform is a bridge that intelligently captures email and attachments (in-flight or at-rest) over
  SMTP/S and IMAP/S and routes them, bi-directionally, into cloud content platforms such as Box, Egnyte, Microsoft OneDrive,
  Google Drive, and Dropbox — without retaining the content itself. Mail2Cloud Advanced adds an AI email-knowledge layer:
  captured email is deduplicated, metadata-preserved, and stored in an isolated per-tenant vector database that an official
  Model Context Protocol (MCP) server exposes to AI agents for secure email search and knowledge recovery, with a V3 REST
  API for dataset and S/MIME management.'
url: https://raw.githubusercontent.com/api-evangelist/mxhero/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
image: https://mxhero.com/wp-content/uploads/2021/03/mxhero-logo.png
tags:
- Company
- Email
- Cloud Storage
- Content Management
- Email to Cloud
- Artificial Intelligence
- MCP
- Email Search
- Compliance
- Collaboration
apis:
- name: mxHERO Mail2Cloud Advanced (AI Email Knowledge)
  description: AI email knowledge-recovery service. Captured company email is optimized and stored in an isolated per-tenant
    vector database, then exposed to AI agents through an official MCP server (email_search tool) over stdio and streamable
    HTTP, secured with mxHERO Vector Search access tokens.
  humanURL: https://www.mxhero.com/advanced-ai
  baseURL: https://lab4-mcp.mxhero.com
  tags:
  - Email
  - Artificial Intelligence
  - MCP
  - Search
  tags_raw:
  - Email
  - AI
  - MCP
  - Search
  properties:
  - type: MCPServer
    url: mcp/mxhero-mcp.yml
  - type: Documentation
    url: https://mxhero.helpjuice.com/en_US/mxhero-ai
  - type: Authentication
    url: authentication/mxhero-authentication.yml
  - type: AgentSkill
    url: skills/mxhero-email-knowledge-search.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://mxhero.com
- type: Products
  url: https://www.mxhero.com/products
- type: Documentation
  url: https://mxhero.helpjuice.com/en_US/mxhero-ai
- type: HelpCenter
  url: https://support.mxhero.com/hc/en-us
- type: Blog
  url: https://web-new.mxhero.com/blog/
- type: Pricing
  url: https://www2.mxhero.com/products-pricing.html
- type: TermsOfService
  url: https://www.mxhero.com/tos
- type: PrivacyPolicy
  url: https://www.mxhero.com/privacy
- type: GitHubOrganization
  url: https://github.com/mxaiorg
- type: MCPServer
  url: mcp/mxhero-mcp.yml
- type: Packages
  url: packages/mxhero-packages.yml
- type: Authentication
  url: authentication/mxhero-authentication.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/mxhero-llms.txt
- type: DomainSecurity
  url: security/mxhero-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 7
  pass: local-v1

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