addy.io

Addy.io provides a web application that enables users to register, log in, and manage their personal account information. The platform includes a dashboard for account settings and integrates with payment services such as Stripe, offering a SaaS solution for address and email related workflows.

addy.io publishes 15 API contracts indexed on the APIs.io network, including Account Details API, Account Notifications API, Alias Bulk Actions API, and 12 more. Tagged areas include Company, Email, Address, SaaS, and API.

The addy.io catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

addy.io’s developer surface includes support, pricing, changelog, engineering blog, getting-started guide, API reference, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

52.9/100 developing Agent 30/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company Email AddressSaaSAPIWebApp

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Application Communications

AE-150

Alias Bulk ActionsAliasesFailed DeliveriesRecipients

POST /api/v1/aliases POST /api/v1/aliases/activate/bulk POST /api/v1/aliases/recipients/bulk POST /api/v1/failed-deliveries/{id}/resend

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 52.9/100 · developing

Contract Quality 11.6 / 21

Developer Ergonomics 5.5 / 17

Access Clarity 13.0 / 17

Operational Transparency 5.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 30/100 · 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 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

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

Pagination 0 / 5

Distinct Operations 3 / 3

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
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

8 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 32.6 — up to +13.5 composite points
Contract Quality scores 54.7 — up to +11.3 composite points
Contract Governance scores 22.0 — up to +9.4 composite points

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.

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/addy-io/apis.yml: open an issue on github.com/api-evangelist/addy-io 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 →

APIs 15

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

addy.io Account Details API

The Account Details API from addy.io — 1 operation(s) for account details.

addy.io Account Notifications API

The Account Notifications API from addy.io — 1 operation(s) for account notifications.

addy.io Alias Bulk Actions API

The Alias Bulk Actions API from addy.io — 10 operation(s) for alias bulk actions.

addy.io Aliases API

The Aliases API from addy.io — 12 operation(s) for aliases.

addy.io API Token API

The API Token API from addy.io — 1 operation(s) for api token.

addy.io App Version API

The App Version API from addy.io — 1 operation(s) for app version.

addy.io Blocklist API

The Blocklist API from addy.io — 4 operation(s) for blocklist.

addy.io Domain Options API

The Domain Options API from addy.io — 1 operation(s) for domain options.

addy.io Domains API

The Domains API from addy.io — 12 operation(s) for domains.

addy.io Endpoints API

The Endpoints API from addy.io — 1 operation(s) for endpoints.

addy.io Failed Deliveries API

The Failed Deliveries API from addy.io — 5 operation(s) for failed deliveries.

addy.io Labels API

The Labels API from addy.io — 2 operation(s) for labels.

addy.io Recipients API

The Recipients API from addy.io — 18 operation(s) for recipients.

addy.io Rules API

The Rules API from addy.io — 5 operation(s) for rules.

addy.io Usernames API

The Usernames API from addy.io — 9 operation(s) for usernames.

Scroll for all 15

Agent Skills 1

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

get-account-details

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Addy Io Plans Pricing

8 plans

PLANS

Event Specifications 1

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

Addy Io Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

addy.io API Rules

13 rules · 8 errors 4 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Addy Io Openapi Overlay

1 action · update

DERIVED

Security Posture 3

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

Addy Io Authentication

0 schemes

SECURITY

Addy Io Domain Security

DNSSEC · DMARC

SECURITY

Addy Io Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Addy Io Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Addy Io Agentic Access

104 operations · 82 acting · 10 human-in-the-loop

104 operations · 82 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

WellKnown

WellKnown

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Vocabulary

Vocabulary

Conformance

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

Security

Security

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Hosts

Hosts

Source (apis.yml)

aid: addy-io
name: addy.io
description: Addy.io provides a web application that enables users to register, log in, and manage their personal account
  information. The platform includes a dashboard for account settings and integrates with payment services such as Stripe,
  offering a SaaS solution for address and email related workflows.
url: https://artifacts.apis.io/addy-io/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-28 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-28'
modified: '2026-10-28'
tags:
- Company
- Email
- Address
- SaaS
- API
- WebApp
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://app.addy.io/og-image.png
common:
- type: CapabilityMap
  url: capabilities/addy-io-capability-edges.yml
  name: addy.io Business Capability Map
- type: AgenticAccess
  url: agentic-access/addy-io-agentic-access.yml
- type: Spectral
  url: rules/addy-io-rules.yml
- type: Vocabulary
  url: vocabulary/addy-io-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conformance
  url: conformance/addy-io-conformance.yml
- type: Overlay
  url: overlays/addy-io-openapi-overlay.yaml
- type: SecurityTxt
  url: well-known/addy-io-security.txt
- type: WellKnown
  url: well-known/addy-io-well-known.yml
- type: Hosts
  url: hosts/addy-io-hosts.yml
- type: TermsOfService
  url: https://addy.io/terms/
- type: Support
  url: https://addy.io/help/
- type: StatusPage
  url: https://status.addy.io/
- type: Security
  url: https://addy.io/security/
- type: PrivacyPolicy
  url: https://addy.io/privacy/
- type: Pricing
  url: https://addy.io/pricing/
- type: Login
  url: https://app.addy.io/login
- type: GitHubOrganization
  url: https://github.com/anonaddy
- type: ChangeLog
  url: https://addy.io/changelog/
- type: Blog
  url: https://addy.io/blog/
- type: GettingStarted
  url: https://addy.io/help/category/getting-started/
- type: APIReference
  url: https://app.addy.io/docs/
- type: DomainSecurity
  url: security/addy-io-domain-security.yml
- type: Website
  url: https://app.addy.io/
apis:
- aid: addy-io:addy-io-account-details-api
  name: addy.io Account Details API
  description: The Account Details API from addy.io — 1 operation(s) for account details.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Account Details
  properties:
  - type: OpenAPI
    url: openapi/addy-io-account-details-api-openapi.yml
- aid: addy-io:addy-io-account-notifications-api
  name: addy.io Account Notifications API
  description: The Account Notifications API from addy.io — 1 operation(s) for account notifications.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Account Notifications
  properties:
  - type: OpenAPI
    url: openapi/addy-io-account-notifications-api-openapi.yml
- aid: addy-io:addy-io-alias-bulk-actions-api
  name: addy.io Alias Bulk Actions API
  description: The Alias Bulk Actions API from addy.io — 10 operation(s) for alias bulk actions.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Alias Bulk Actions
  properties:
  - type: OpenAPI
    url: openapi/addy-io-alias-bulk-actions-api-openapi.yml
- aid: addy-io:addy-io-aliases-api
  name: addy.io Aliases API
  description: The Aliases API from addy.io — 12 operation(s) for aliases.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Aliases
  properties:
  - type: OpenAPI
    url: openapi/addy-io-aliases-api-openapi.yml
- aid: addy-io:addy-io-api-token-api
  name: addy.io API Token API
  description: The API Token API from addy.io — 1 operation(s) for api token.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - API Token
  properties:
  - type: OpenAPI
    url: openapi/addy-io-api-token-api-openapi.yml
- aid: addy-io:addy-io-app-version-api
  name: addy.io App Version API
  description: The App Version API from addy.io — 1 operation(s) for app version.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - App Version
  properties:
  - type: OpenAPI
    url: openapi/addy-io-app-version-api-openapi.yml
- aid: addy-io:addy-io-blocklist-api
  name: addy.io Blocklist API
  description: The Blocklist API from addy.io — 4 operation(s) for blocklist.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Blocklist
  properties:
  - type: OpenAPI
    url: openapi/addy-io-blocklist-api-openapi.yml
- aid: addy-io:addy-io-domain-options-api
  name: addy.io Domain Options API
  description: The Domain Options API from addy.io — 1 operation(s) for domain options.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Domain Options
  properties:
  - type: OpenAPI
    url: openapi/addy-io-domain-options-api-openapi.yml
- aid: addy-io:addy-io-domains-api
  name: addy.io Domains API
  description: The Domains API from addy.io — 12 operation(s) for domains.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Domains
  properties:
  - type: OpenAPI
    url: openapi/addy-io-domains-api-openapi.yml
- aid: addy-io:addy-io-endpoints-api
  name: addy.io Endpoints API
  description: The Endpoints API from addy.io — 1 operation(s) for endpoints.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Endpoints
  properties:
  - type: OpenAPI
    url: openapi/addy-io-endpoints-api-openapi.yml
- aid: addy-io:addy-io-failed-deliveries-api
  name: addy.io Failed Deliveries API
  description: The Failed Deliveries API from addy.io — 5 operation(s) for failed deliveries.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Failed Deliveries
  properties:
  - type: OpenAPI
    url: openapi/addy-io-failed-deliveries-api-openapi.yml
- aid: addy-io:addy-io-labels-api
  name: addy.io Labels API
  description: The Labels API from addy.io — 2 operation(s) for labels.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Labels
  properties:
  - type: OpenAPI
    url: openapi/addy-io-labels-api-openapi.yml
- aid: addy-io:addy-io-recipients-api
  name: addy.io Recipients API
  description: The Recipients API from addy.io — 18 operation(s) for recipients.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Recipients
  properties:
  - type: OpenAPI
    url: openapi/addy-io-recipients-api-openapi.yml
- aid: addy-io:addy-io-rules-api
  name: addy.io Rules API
  description: The Rules API from addy.io — 5 operation(s) for rules.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Rules
  properties:
  - type: OpenAPI
    url: openapi/addy-io-rules-api-openapi.yml
- aid: addy-io:addy-io-usernames-api
  name: addy.io Usernames API
  description: The Usernames API from addy.io — 9 operation(s) for usernames.
  humanURL: https://app.addy.io/docs/
  baseURL: https://app.addy.io
  tags:
  - Usernames
  properties:
  - type: OpenAPI
    url: openapi/addy-io-usernames-api-openapi.yml
x-submission-probe: 200, 2026-10-26
x-enrichment:
  date: '2026-10-28'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

addy.io API — frequently asked questions

Does addy.io have an API?

Yes. APIs.io lists 15 APIs from addy.io, including addy.io Account Details API, addy.io Account Notifications API and addy.io Alias Bulk Actions API, and 12 more.

Is there an OpenAPI specification for the addy.io API?

Yes. APIs.io indexes 15 OpenAPI specifications for addy.io, each linked for download from this page.

How do I authenticate with the addy.io API?

addy.io uses bearer-token authentication (0 schemes). The details are profiled on APIs.io as Addy Io Authentication.

How much does the addy.io API cost?

APIs.io lists 8 pricing plans for addy.io, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the addy.io API ready for AI agents?

addy.io has a Kin Score of 52.9 out of 100 (developing) and an Agent Readiness score of 30.3 (agent-ready), scored by API Evangelist on 2026-10-31.

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