DevInbox

DevInbox is a service that provides developers with a unified inbox for API notifications, alerts, and messages. The platform is shutting down on 31 December 2026, with new sign‑ups closed but existing accounts retaining full access until the shutdown date. It offers integrations for various API providers, customizable routing, and a web dashboard for managing inbound communications.

DevInbox is listed with 2 APIs on the APIs.io network. Tagged areas include Developer Tools, Email, Notification, API Integration, and Shutdown.

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

DevInbox’s developer surface includes getting-started guide and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

26.8/100 thin Agent 20/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 APIs

Developer Tools Email Notification API Integration Shutdown

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 26.8/100 · thin

Contract Quality 5.6 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 5.8 / 17

Operational Transparency 0.6 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 20/100 · agent aware

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 0 / 8

Request/Response Examples 7 / 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 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 26.2 — up to +18.5 composite points
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Access Clarity scores 34.2 — up to +13.2 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/devinbox-io/apis.yml: open an issue on github.com/api-evangelist/devinbox-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 2

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

DevInbox API

API documentation for DevInbox, providing endpoints for email notifications and inbox management.

DevInbox API

DevInbox API as documented publicly: 13 operations. Contract generated from the documentation by API Evangelist (2026-11-05); not the provider's own document.

Semantic Vocabularies 1

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

Devinbox Io Context

10 classes · 19 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

DevInbox API Rules

45 rules · 43 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

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

GetMailboxesResponse

2 properties

JSON SCHEMA

GetMessagesKeyResponse

3 properties

JSON SCHEMA

GetMessagesKeySingleResponse

9 properties

JSON SCHEMA

GetMessagesKeyTemplateSingleResponse

10 properties

JSON SCHEMA

PostMailboxesRequest

2 properties

JSON SCHEMA

PostMessagesKeySendRequest

7 properties

JSON SCHEMA

Security Posture 1

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

Devinbox Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: devinbox-io
name: DevInbox
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: gated
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://devinbox.io/images/logo/logo-light.png
description: DevInbox is a service that provides developers with a unified inbox for API notifications, alerts, and messages.
  The platform is shutting down on 31 December 2026, with new sign‑ups closed but existing accounts retaining full access
  until the shutdown date. It offers integrations for various API providers, customizable routing, and a web dashboard for
  managing inbound communications.
url: https://artifacts.apis.io/devinbox-io/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-05 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-05'
modified: '2026-11-05'
tags:
- Developer Tools
- Email
- Notification
- API Integration
- Shutdown
tags_raw:
- Developer Tools
- Email
- Notifications
- API Integration
- Shutdown
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/devinbox-io-rules.yml
- type: JSONLD
  url: json-ld/devinbox-io-context.jsonld
- type: Vocabulary
  url: vocabulary/devinbox-io-vocabulary.yml
- type: DataModel
  url: data-model/devinbox-io-data-model.yml
- type: Conformance
  url: conformance/devinbox-io-conformance.yml
- type: LLMsTxt
  url: llms/devinbox-io-llms.txt
- type: Hosts
  url: hosts/devinbox-io-hosts.yml
- type: SDKs
  url: packages/devinbox-io-packages.yml
- type: Packages
  url: packages/devinbox-io-packages.yml
- type: TermsOfService
  url: https://devinbox.io/terms
- type: PrivacyPolicy
  url: https://devinbox.io/privacy
- type: Login
  url: https://app.devinbox.io/Account/Login
- type: GitHubOrganization
  url: https://github.com/dev-inbox-io
- type: GettingStarted
  url: https://devinbox.io/doc/getting-started
- type: DomainSecurity
  url: security/devinbox-io-domain-security.yml
- type: Website
  url: https://devinbox.io/
apis:
- name: DevInbox API
  description: API documentation for DevInbox, providing endpoints for email notifications and inbox management.
  humanURL: https://devinbox.io/doc/api-guide
  baseURL: null
  aid: devinbox-io:devinbox-api
- aid: devinbox-io:devinbox-io-api
  name: DevInbox API
  description: 'DevInbox API as documented publicly: 13 operations. Contract generated from the documentation by API Evangelist
    (2026-11-05);

    not the provider''s own document.'
  humanURL: https://devinbox.io/doc/api-guide
  baseURL: https://api.devinbox.io
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/devinbox-io-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/devinbox-io-post-messages-key-send-request-schema.json
  - type: JSONSchema
    url: json-schema/devinbox-io-get-messages-key-template-single-response-schema.json
  - type: JSONSchema
    url: json-schema/devinbox-io-get-messages-key-single-response-schema.json
  - type: JSONSchema
    url: json-schema/devinbox-io-get-messages-key-response-schema.json
  - type: JSONSchema
    url: json-schema/devinbox-io-post-mailboxes-request-schema.json
  - type: JSONSchema
    url: json-schema/devinbox-io-get-mailboxes-response-schema.json
x-coverage:
  state: gated
  reason: auth-required
  detail: OpenAPI spec endpoints on api.devinbox.io return 401 Unauthorized, requiring an API key.
  evidence:
  - url: https://api.devinbox.io/openapi.json
    status: 401
  checked: '2026-11-05'
x-enrichment:
  date: '2026-11-05'
  status: enriched
  artifacts_added: 23
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

DevInbox API — frequently asked questions

Does DevInbox have an API?

Yes. APIs.io lists 2 APIs from DevInbox, including DevInbox API and DevInbox API.

Is there an OpenAPI specification for the DevInbox API?

Yes. APIs.io indexes 1 OpenAPI specification for DevInbox, each linked for download from this page.

How do I authenticate with the DevInbox API?

DevInbox uses bearer-token authentication.

Is the DevInbox API ready for AI agents?

DevInbox has a Kin Score of 26.8 out of 100 (thin) and an Agent Readiness score of 19.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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