JustEmails

JustEmails provides unlimited custom‑domain email hosting with a single inbox per user. It offers auto‑DNS configuration, full IMAP/SMTP access, and a flat $49 per year pricing model without seat‑based fees. Built by Velocity Digital Labs LLC, the service targets individuals and agencies managing multiple domains, delivering a unified dashboard, 10 GB storage per mailbox, and a modern MCP + REST API for integration.

JustEmails publishes 25 API contracts indexed on the APIs.io network, including Account API, Analytics API, API Keys API, and 22 more. Tagged areas include Email, Hosting, CustomDomain, and MCP.

The JustEmails catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

JustEmails’ developer surface includes getting-started guide, engineering blog, authentication, documentation, API reference, pricing, status page, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

51.2/100 developing Agent 41/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 published contract 1 Agent Skills

Email Hosting CustomDomain MCP

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 51.2/100 · developing

Contract Quality 13.0 / 21

Developer Ergonomics 7.6 / 17

Access Clarity 10.5 / 17

Operational Transparency 1.0 / 11

Contract Governance 3.6 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 41/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 0 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Operational Transparency scores 9.5 — up to +11.8 composite points Ask about this →
Developer Ergonomics scores 44.6 — up to +11.1 composite points Ask about this →
Contract Quality scores 61.3 — up to +9.7 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/justemails-app/apis.yml: open an issue on github.com/api-evangelist/justemails-app to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 3

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 25

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

JustEmails Account API

The account API from JustEmails — 7 operation(s) for account.

JustEmails Analytics API

The Analytics API from JustEmails — 3 operation(s) for analytics.

JustEmails API Keys API

The api-keys API from JustEmails — 3 operation(s) for api-keys.

JustEmails Billing API

The Billing API from JustEmails — 9 operation(s) for billing.

JustEmails Compliance API

The compliance API from JustEmails — 2 operation(s) for compliance.

JustEmails Compose API

The compose API from JustEmails — 1 operation(s) for compose.

JustEmails Contacts API

The contacts API from JustEmails — 1 operation(s) for contacts.

JustEmails Domains API

The Domains API from JustEmails — 26 operation(s) for domains.

JustEmails Emails API

The Emails API from JustEmails — 17 operation(s) for emails.

JustEmails External Accounts API

The external-accounts API from JustEmails — 11 operation(s) for external-accounts.

JustEmails External API

The external API from JustEmails — 1 operation(s) for external.

JustEmails Identities API

The identities API from JustEmails — 1 operation(s) for identities.

JustEmails Inbox API

The inbox API from JustEmails — 1 operation(s) for inbox.

JustEmails Mailboxes API

The Mailboxes API from JustEmails — 4 operation(s) for mailboxes.

JustEmails Me API

The me API from JustEmails — 10 operation(s) for me.

JustEmails Messages API

The messages API from JustEmails — 2 operation(s) for messages.

JustEmails Migration API

The migration API from JustEmails — 32 operation(s) for migration.

JustEmails OAuth API

The oauth API from JustEmails — 2 operation(s) for oauth.

JustEmails Org API

The org API from JustEmails — 13 operation(s) for org.

JustEmails Saved Replies API

The saved-replies API from JustEmails — 2 operation(s) for saved-replies.

JustEmails Send API

The Send API from JustEmails — 3 operation(s) for send.

JustEmails Spam API

The spam API from JustEmails — 2 operation(s) for spam.

JustEmails Status API

The status API from JustEmails — 1 operation(s) for status.

JustEmails Suppressions API

The suppressions API from JustEmails — 2 operation(s) for suppressions.

JustEmails Webhooks API

The Webhooks API from JustEmails — 5 operation(s) for webhooks.

Scroll for all 25

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

transactional-email

AGENT SKILL

JustEmails API pricing

Prices published by JustEmails, read 2026-11-13 from justemails.app/pricing.

Plan	Price
Base Plan	$49/year
Extra storage add‑on	$99/yr
Transactional email add‑on	$25/yr
Team seat	$2/user/mo

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

JustEmails Plans Pricing

4 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Justemails App Context

6 classes · 34 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

JustEmails API Rules

61 rules · 55 error-severity 4 warn-severity 2 info-severity

SPECTRAL

JSON Schema 5

Standalone JSON Schema definitions for this provider's data models.

Domain

4 properties

JSON SCHEMA

Email

14 properties

JSON SCHEMA

Mailbox

6 properties

JSON SCHEMA

Message

4 properties

JSON SCHEMA

SendTransactionalRequest

13 properties

JSON SCHEMA

Security Posture 3

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

JustEmails Authentication

http · 1 scheme

SECURITY

JustEmails Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

JustEmails Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

JustEmails Agentic Access

217 operations · 118 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

WellKnown

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 8

Access & Security 5

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

Security

Security

Authentication

Authentication

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Status

Status

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 3

The organization behind the API

Blog

Blog

Website

Website

About

About

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: justemails-app
name: JustEmails
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://justemails.app/og-image.png
description: JustEmails provides unlimited custom‑domain email hosting with a single inbox per user. It offers auto‑DNS configuration,
  full IMAP/SMTP access, and a flat $49 per year pricing model without seat‑based fees. Built by Velocity Digital Labs LLC,
  the service targets individuals and agencies managing multiple domains, delivering a unified dashboard, 10 GB storage per
  mailbox, and a modern MCP + REST API for integration.
url: https://artifacts.apis.io/justemails-app/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-13'
modified: '2026-11-13'
tags:
- Email
- Hosting
- CustomDomain
- MCP
tags_raw:
- Email
- Hosting
- CustomDomain
- MCP
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: GettingStarted
  url: https://justemails.app/blog/email-for-your-own-domain-the-complete-setup
- type: AgenticAccess
  url: agentic-access/justemails-app-agentic-access.yml
- type: Plans
  url: plans/justemails-app-plans-pricing.yml
- type: Spectral
  url: rules/justemails-app-rules.yml
- type: JSONLD
  url: json-ld/justemails-app-context.jsonld
- type: Vocabulary
  url: vocabulary/justemails-app-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/justemails-app-data-model.yml
- type: Idempotency
  url: conventions/justemails-app-conventions.yml
- type: Conventions
  url: conventions/justemails-app-conventions.yml
- type: ErrorCatalog
  url: errors/justemails-app-problem-types.yml
- type: Conformance
  url: conformance/justemails-app-conformance.yml
- type: LLMsTxt
  url: llms/justemails-app-llms.txt
- type: SecurityTxt
  url: well-known/justemails-app-security.txt
- type: WellKnown
  url: well-known/justemails-app-well-known.yml
- type: Hosts
  url: hosts/justemails-app-hosts.yml
- type: TermsOfService
  url: https://justemails.app/terms
- type: Security
  url: https://justemails.app/security
- type: PrivacyPolicy
  url: https://justemails.app/privacy
- type: Login
  url: https://justemails.app/login
- type: Blog
  url: https://justemails.app/blog
- type: Authentication
  url: authentication/justemails-app-authentication.yml
- type: VulnerabilityDisclosure
  url: security/justemails-app-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/justemails-app-domain-security.yml
- type: Website
  url: https://justemails.app/
- type: Documentation
  url: https://justemails.app/api-docs
- type: APIReference
  url: https://justemails.app/api-docs
- type: Pricing
  url: https://justemails.app/pricing
- type: Status
  url: https://justemails.app/status
- type: About
  url: https://justemails.app/about
apis:
- aid: justemails-app:justemails-app-account-api
  name: JustEmails Account API
  description: The account API from JustEmails — 7 operation(s) for account.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Account
  tags_raw:
  - account
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-account-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-analytics-api
  name: JustEmails Analytics API
  description: The Analytics API from JustEmails — 3 operation(s) for analytics.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-analytics-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-api-keys-api
  name: JustEmails API Keys API
  description: The api-keys API from JustEmails — 3 operation(s) for api-keys.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - APIKeys
  tags_raw:
  - api-keys
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-api-keys-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-billing-api
  name: JustEmails Billing API
  description: The Billing API from JustEmails — 9 operation(s) for billing.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-billing-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-compliance-api
  name: JustEmails Compliance API
  description: The compliance API from JustEmails — 2 operation(s) for compliance.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Compliance
  tags_raw:
  - compliance
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-compliance-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-compose-api
  name: JustEmails Compose API
  description: The compose API from JustEmails — 1 operation(s) for compose.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Compose
  tags_raw:
  - compose
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-compose-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-contacts-api
  name: JustEmails Contacts API
  description: The contacts API from JustEmails — 1 operation(s) for contacts.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Contacts
  tags_raw:
  - contacts
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-contacts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-domains-api
  name: JustEmails Domains API
  description: The Domains API from JustEmails — 26 operation(s) for domains.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Domains
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-domains-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-emails-api
  name: JustEmails Emails API
  description: The Emails API from JustEmails — 17 operation(s) for emails.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Email
  tags_raw:
  - Emails
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-emails-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-external-accounts-api
  name: JustEmails External Accounts API
  description: The external-accounts API from JustEmails — 11 operation(s) for external-accounts.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - External Accounts
  tags_raw:
  - external-accounts
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-external-accounts-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-external-api
  name: JustEmails External API
  description: The external API from JustEmails — 1 operation(s) for external.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - External
  tags_raw:
  - external
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-external-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-identities-api
  name: JustEmails Identities API
  description: The identities API from JustEmails — 1 operation(s) for identities.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Identities
  tags_raw:
  - identities
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-identities-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-inbox-api
  name: JustEmails Inbox API
  description: The inbox API from JustEmails — 1 operation(s) for inbox.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Inbox
  tags_raw:
  - inbox
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-inbox-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-mailboxes-api
  name: JustEmails Mailboxes API
  description: The Mailboxes API from JustEmails — 4 operation(s) for mailboxes.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Mailboxes
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-mailboxes-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-me-api
  name: JustEmails Me API
  description: The me API from JustEmails — 10 operation(s) for me.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Me
  tags_raw:
  - me
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-me-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-messages-api
  name: JustEmails Messages API
  description: The messages API from JustEmails — 2 operation(s) for messages.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Message
  tags_raw:
  - messages
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-messages-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-migration-api
  name: JustEmails Migration API
  description: The migration API from JustEmails — 32 operation(s) for migration.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Migration
  tags_raw:
  - migration
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-migration-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-oauth-api
  name: JustEmails OAuth API
  description: The oauth API from JustEmails — 2 operation(s) for oauth.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - OAuth
  tags_raw:
  - oauth
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-oauth-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-org-api
  name: JustEmails Org API
  description: The org API from JustEmails — 13 operation(s) for org.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Org
  tags_raw:
  - org
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-org-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-saved-replies-api
  name: JustEmails Saved Replies API
  description: The saved-replies API from JustEmails — 2 operation(s) for saved-replies.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - saved-replies
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-saved-replies-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-send-api
  name: JustEmails Send API
  description: The Send API from JustEmails — 3 operation(s) for send.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Send
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-send-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-spam-api
  name: JustEmails Spam API
  description: The spam API from JustEmails — 2 operation(s) for spam.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Spam
  tags_raw:
  - spam
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-spam-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-status-api
  name: JustEmails Status API
  description: The status API from JustEmails — 1 operation(s) for status.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Status
  tags_raw:
  - status
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-status-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-suppressions-api
  name: JustEmails Suppressions API
  description: The suppressions API from JustEmails — 2 operation(s) for suppressions.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Suppressions
  tags_raw:
  - suppressions
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-suppressions-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
- aid: justemails-app:justemails-app-webhooks-api
  name: JustEmails Webhooks API
  description: The Webhooks API from JustEmails — 5 operation(s) for webhooks.
  humanURL: https://justemails.app/api-docs
  baseURL: https://justemails.app
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/justemails-app-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/justemails-app-send-transactional-request-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-email-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-message-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-mailbox-schema.json
  - type: JSONSchema
    url: json-schema/justemails-app-domain-schema.json
x-enrichment:
  date: '2026-11-13'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

JustEmails API — frequently asked questions

Does JustEmails have an API?

Yes. APIs.io lists 25 APIs from JustEmails, including JustEmails Account API, JustEmails Analytics API and JustEmails API Keys API, and 22 more.

Is there an OpenAPI specification for the JustEmails API?

Yes. APIs.io indexes 25 OpenAPI specifications for JustEmails, each linked for download from this page.

How do I authenticate with the JustEmails API?

JustEmails documents its authentication (http · 1 scheme). The details are profiled on APIs.io as JustEmails Authentication.

How much does the JustEmails API cost?

JustEmails publishes its prices; its Base Plan plan is $49/year as of 2026-11-13. APIs.io lists 4 pricing plans for JustEmails, with each plan's price, limits and inclusions under Pricing on this page.

Is the JustEmails API ready for AI agents?

JustEmails has a Kin Score of 51.2 out of 100 (developing) and an Agent Readiness score of 41.0 (agent-ready), scored by API Evangelist on 2026-11-13.

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