Inboxy

Inboxy provides AI-friendly email aliasing with a daily digest, allowing agents to receive and send mail via @inboxy.net addresses while keeping personal email private. It offers up to five aliases, a summary of incoming messages, and MCP server integration for AI agents, all hosted on EU-resident infrastructure with strong privacy guarantees. Public beta includes unlimited inbound, limited outbound, and browser extensions for easy use.

Inboxy publishes 13 API contracts indexed on the APIs.io network, including Account API, Addresses API, API keys API, and 10 more. Tagged areas include Email Alias, Browser Extension, and Daily Digest.

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

Inboxy’s developer surface includes support, pricing, documentation, getting-started guide, API reference, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

49.5/100 developing Agent 40/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 published contract

Email AliasBrowser Extension Daily Digest

Kin Score

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

Composite quality — 49.5/100 · developing

Contract Quality 12.4 / 21

Developer Ergonomics 5.7 / 17

Access Clarity 10.5 / 17

Operational Transparency 3.9 / 11

Contract Governance 1.9 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 40/100 · agent ready

Machine-Readable Contract 18 / 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 6 / 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 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 3 / 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 →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) 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 →

6 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 33.3 — up to +13.3 composite points Ask about this →
Contract Quality scores 58.5 — up to +10.4 composite points Ask about this →
Contract Governance scores 18.2 — up to +9.8 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/inboxy-net/apis.yml: open an issue on github.com/api-evangelist/inboxy-net 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 13

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

Inboxy Account API

Caller identity.

Inboxy Addresses API

Mint and retire @inboxy.net aliases.

Inboxy API keys API

Manage your own API keys.

Inboxy Articles API

Read items from your feeds.

Inboxy Attachments API

Signed download URLs.

Inboxy Billing API

Stripe checkout, billing portal, and plan changes.

Inboxy Domains API

Verify a custom domain for a future sending feature (1 on free and standard, 10 on pro). Verification only — a verified domain cannot yet be used to send mail.

Inboxy Feeds API

RSS / Atom feed subscriptions.

Inboxy Mail API

Compose and send from your aliases.

Inboxy Messages API

List, read, search, mark, delete.

Inboxy Outbox API

Logged outbound queue — what you or your agent sent.

Inboxy Service API

Health, discovery.

Inboxy Webhooks API

Outbound event notifications (paid plans).

Scroll for all 13

Inboxy API pricing

Prices published by Inboxy.

Plan	Price
Free	£0/month
Standard	TBD/month
Pro	TBD/month

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Inboxy Plans Pricing

3 plans

PLANS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Inboxy Net Webhooks

ASYNCAPI

Security Posture 2

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

Inboxy Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Inboxy Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Webhooks

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Security

Security

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: inboxy-net
name: Inboxy
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://inboxy.net/og.png
description: Inboxy provides AI-friendly email aliasing with a daily digest, allowing agents to receive and send mail via
  @inboxy.net addresses while keeping personal email private. It offers up to five aliases, a summary of incoming messages,
  and MCP server integration for AI agents, all hosted on EU-resident infrastructure with strong privacy guarantees. Public
  beta includes unlimited inbound, limited outbound, and browser extensions for easy use.
url: https://artifacts.apis.io/inboxy-net/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-12 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-12'
modified: '2026-11-12'
tags:
- Email Alias
- Browser Extension
- Daily Digest
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/inboxy-net-plans-pricing.yml
- type: Webhooks
  url: asyncapi/inboxy-net-webhooks.yml
- type: DataModel
  url: data-model/inboxy-net-data-model.yml
- type: Security
  url: https://inboxy.net/help/report-vulnerability
- type: ErrorCatalog
  url: errors/inboxy-net-problem-types.yml
- type: Conformance
  url: conformance/inboxy-net-conformance.yml
- type: LLMsTxt
  url: llms/inboxy-net-llms.txt
- type: SecurityTxt
  url: well-known/inboxy-net-security.txt
- type: SecurityTxt
  url: well-known/inboxy-net-mta-sts-security.txt
- type: WellKnown
  url: well-known/inboxy-net-well-known.yml
- type: Hosts
  url: hosts/inboxy-net-hosts.yml
- type: Vendors
  url: vendors/inboxy-net-vendors.yml
- type: TermsOfService
  url: https://inboxy.net/terms
- type: Support
  url: https://inboxy.net/help
- type: StatusPage
  url: https://status.inboxy.net/
- type: PrivacyPolicy
  url: https://inboxy.net/privacy
- type: Pricing
  url: https://inboxy.net/pricing
- type: Login
  url: https://inboxy.net/login
- type: Documentation
  url: https://inboxy.net/docs/skill
- type: GettingStarted
  url: https://inboxy.net/help/getting-started
- type: APIReference
  url: https://inboxy.net/llms.txt
- type: GitHubOrganization
  url: https://github.com/inboxy
- type: VulnerabilityDisclosure
  url: security/inboxy-net-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/inboxy-net-domain-security.yml
- type: Website
  url: https://inboxy.net/
apis:
- aid: inboxy-net:inboxy-net-account-api
  name: Inboxy Account API
  description: Caller identity.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-account-api-openapi.yml
- aid: inboxy-net:inboxy-net-addresses-api
  name: Inboxy Addresses API
  description: Mint and retire @inboxy.net aliases.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Addresses
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-addresses-api-openapi.yml
- aid: inboxy-net:inboxy-net-api-keys-api
  name: Inboxy API keys API
  description: Manage your own API keys.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - APIKeys
  tags_raw:
  - API keys
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-api-keys-api-openapi.yml
- aid: inboxy-net:inboxy-net-articles-api
  name: Inboxy Articles API
  description: Read items from your feeds.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Articles
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-articles-api-openapi.yml
- aid: inboxy-net:inboxy-net-attachments-api
  name: Inboxy Attachments API
  description: Signed download URLs.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Attachments
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-attachments-api-openapi.yml
- aid: inboxy-net:inboxy-net-billing-api
  name: Inboxy Billing API
  description: Stripe checkout, billing portal, and plan changes.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-billing-api-openapi.yml
- aid: inboxy-net:inboxy-net-domains-api
  name: Inboxy Domains API
  description: Verify a custom domain for a future sending feature (1 on free and standard, 10 on pro). Verification only
    — a verified domain cannot yet be used to send mail.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Domains
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-domains-api-openapi.yml
- aid: inboxy-net:inboxy-net-feeds-api
  name: Inboxy Feeds API
  description: RSS / Atom feed subscriptions.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Feed
  tags_raw:
  - Feeds
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-feeds-api-openapi.yml
- aid: inboxy-net:inboxy-net-mail-api
  name: Inboxy Mail API
  description: Compose and send from your aliases.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Mail
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-mail-api-openapi.yml
- aid: inboxy-net:inboxy-net-messages-api
  name: Inboxy Messages API
  description: List, read, search, mark, delete.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-messages-api-openapi.yml
- aid: inboxy-net:inboxy-net-outbox-api
  name: Inboxy Outbox API
  description: Logged outbound queue — what you or your agent sent.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Outbox
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-outbox-api-openapi.yml
- aid: inboxy-net:inboxy-net-service-api
  name: Inboxy Service API
  description: Health, discovery.
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Services
  tags_raw:
  - Service
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-service-api-openapi.yml
- aid: inboxy-net:inboxy-net-webhooks-api
  name: Inboxy Webhooks API
  description: Outbound event notifications (paid plans).
  humanURL: https://api.inboxy.net/docs
  baseURL: https://api.inboxy.net
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/inboxy-net-webhooks-api-openapi.yml
x-enrichment:
  date: '2026-11-12'
  status: enriched
  artifacts_added: 23
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Inboxy API — frequently asked questions

Does Inboxy have an API?

Yes. APIs.io lists 13 APIs from Inboxy, including Inboxy Account API, Inboxy Addresses API and Inboxy API keys API, and 10 more.

Is there an OpenAPI specification for the Inboxy API?

Yes. APIs.io indexes 13 OpenAPI specifications for Inboxy, each linked for download from this page.

How much does the Inboxy API cost?

Inboxy publishes its prices; its Free plan is £0/month as of 2026-11-12. APIs.io lists 3 pricing plans for Inboxy, with each plan's price, limits and inclusions under Pricing on this page.

Is the Inboxy API ready for AI agents?

Inboxy has a Kin Score of 49.5 out of 100 (developing) and an Agent Readiness score of 40.1 (agent-ready), scored by API Evangelist on 2026-11-13.

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