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OpenAPI Specification
openapi: 3.2.0
info:
title: InboxGuard Account API
version: 1.2.0
summary: Email deliverability monitoring, DMARC reporting, and DNS authentication scanning.
description: 'The InboxGuard REST API lets developers and AI agents run on-demand deliverability scans (SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, and DNS blocklists), re-verify raw email headers, manage monitored domains, read DMARC aggregate reports, list alerts, and manage API keys.
## Authentication
Authenticated endpoints accept an InboxGuard API key as a bearer token:
```
Authorization: Bearer ig_live_xxxxxxxxxxxxxxxxxxxxxxxx
```
Mint keys in the dashboard (Settings → API keys) or via `POST /api-keys`. Keys carry scopes: `read` (GET only) or `full` (all methods). See https://inboxguard.io/auth.md.
## Errors
Every error returns the same structured envelope (`#/components/schemas/Error`): `{ "error": { "code": "RATE_LIMIT", "message": "...", "requestId": "..." } }`.
## Rate limits
The anonymous `POST /scan-domain` endpoint allows 5 requests/hour per IP; authenticated callers get their plan''s hourly limit. `POST /scan-domain` responses carry `RateLimit-Limit`, `RateLimit-Remaining`, `RateLimit-Reset` (and `X-RateLimit-*` equivalents); 429 responses add `Retry-After`.
## Idempotency
`POST /scan-domain` accepts an optional `Idempotency-Key` header with real replay semantics: a retry with the same key from the same caller within 1 hour returns the stored response instead of re-running the scan, marked with an `Idempotency-Replayed: true` response header.
## Versioning
The API uses unversioned, stable URLs (one surface — no `/v1` path prefix). The current API version is echoed on every response in the `API-Version` header. Additive, backward-compatible changes (new endpoints, new optional fields) ship continuously without a version bump. Breaking changes — when they are ever needed — ship under a NEW version that you opt into by sending an optional `Accept-Version` request header; the existing behaviour remains the default so unversioned callers are never broken. Omit `Accept-Version` to always get the current stable version. Upcoming breaking changes are announced in these docs and at https://inboxguard.io/llms-full.txt in advance.
## Pagination
Only `GET /scans` is paginated: pass `?before=` (from the previous response''s `nextCursor`) to walk older scans. `GET /domains`, `GET /alerts`, and `GET /api-keys` return the full (limit-capped) list in one response — there are no `cursor` parameters.'
termsOfService: https://inboxguard.io/terms
contact:
name: InboxGuard Support
email: support@inboxguard.io
url: https://inboxguard.io/contact
license:
name: Proprietary
url: https://inboxguard.io/terms
x-deprecation-policy: 'Unversioned, stable URLs. When an endpoint or field is ever deprecated, responses carry a ''Deprecation: true'' header and a ''Sunset: <HTTP-date>'' header marking the removal date — at least 6 months out — plus a ''Link: <url>; rel="deprecation"'' pointer to migration notes. Opt into a future breaking version with the optional ''Accept-Version'' request header. Nothing is deprecated today.'
servers:
- url: https://api.inboxguard.io
description: Production
security:
- ApiKeyBearer: []
tags:
- name: Account
description: API keys and account metadata.
paths:
/me:
get:
operationId: getMe
tags:
- Account
summary: Current identity, org, plan, and usage
description: Returns the caller's identity, organization context, effective plan/trial state, and domain usage. Also the cheapest way for an agent to verify an API key is valid.
parameters:
- $ref: '#/components/parameters/AcceptVersion'
responses:
'200':
description: Identity and plan
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/Me'
'401':
$ref: '#/components/responses/Unauthorized'
'500':
$ref: '#/components/responses/InternalServerError'
/api-keys:
get:
operationId: listApiKeys
tags:
- Account
summary: List API keys
description: 'Lists non-revoked API keys for the caller''s organization (fields are snake_case: `key_prefix`, `last_used_at`, `created_at`, …). Secrets are never returned after creation. Requires session (Cognito) auth — API keys cannot manage API keys.'
parameters:
- $ref: '#/components/parameters/AcceptVersion'
responses:
'200':
description: API keys
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/ApiKeyList'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'500':
$ref: '#/components/responses/InternalServerError'
post:
operationId: createApiKey
tags:
- Account
summary: Create an API key
description: Mints a new API key and returns the secret (`token`) exactly once. Requires session (owner/admin) auth. Choose scopes `read` or `full`.
parameters:
- $ref: '#/components/parameters/AcceptVersion'
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/CreateApiKeyRequest'
example:
name: CI deploy bot
environment: live
scopes:
- read
responses:
'201':
description: Key created (secret returned once)
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/ApiKeyWithSecret'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'500':
$ref: '#/components/responses/InternalServerError'
/api-keys/{id}:
parameters:
- name: id
in: path
required: true
description: API key id (UUID).
schema:
type: string
format: uuid
delete:
operationId: revokeApiKey
tags:
- Account
summary: Revoke an API key
description: Soft-revokes an API key. The key stops working immediately. Requires session (owner/admin) auth.
parameters:
- $ref: '#/components/parameters/AcceptVersion'
responses:
'200':
description: Revoked
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/RevokeApiKeyResult'
example:
ok: true
revoked:
id: 5c2f7a16-9d0e-4f6b-8a3c-1e2d3f4a5b6c
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
components:
schemas:
Error:
type: object
description: Structured error envelope returned by every non-2xx response.
properties:
error:
type: object
properties:
code:
type: string
description: Stable machine-readable code.
enum:
- BAD_REQUEST
- UNAUTHORIZED
- FORBIDDEN
- NOT_FOUND
- CONFLICT
- RATE_LIMIT
- UPSTREAM_ERROR
- INTERNAL_ERROR
- SERVICE_UNAVAILABLE
- DNS_TEMPORARY_FAILURE
message:
type: string
description: Human-readable description.
requestId:
type: string
description: Correlation id for support.
details:
description: Optional structured validation detail (e.g. zod field errors).
retryAfterSeconds:
type: integer
description: Present on RATE_LIMIT responses.
required:
- code
- message
required:
- error
Me:
type: object
properties:
user:
type: object
properties:
id:
type: string
email:
type: string
appRole:
type: string
org:
type: object
properties:
id:
type: string
format: uuid
role:
type: string
enum:
- owner
- admin
- analyst
plan:
type: object
properties:
tier:
type: string
trialing:
type: boolean
trialExpired:
type: boolean
trialEndsAt:
type:
- string
- 'null'
trialDaysRemaining:
type:
- integer
- 'null'
limits:
type: object
usage:
type: object
properties:
domains:
type: integer
domainsLimit:
type: integer
catalog:
type: object
description: The canonical plan catalog (per-tier limits).
stripePublishableKey:
type:
- string
- 'null'
required:
- user
- org
- plan
- usage
ApiKey:
type: object
description: API key metadata (snake_case fields). The secret is only ever present in the POST /api-keys response.
properties:
id:
type: string
format: uuid
name:
type: string
key_prefix:
type: string
description: First 12 chars of the key for identification (e.g. ig_live_xxxx).
environment:
type: string
enum:
- live
- test
scopes:
type: array
items:
type: string
enum:
- read
- full
created_by:
type:
- string
- 'null'
description: User id that minted the key.
last_used_at:
type:
- string
- 'null'
format: date-time
last_used_ip:
type:
- string
- 'null'
expires_at:
type:
- string
- 'null'
format: date-time
created_at:
type: string
format: date-time
required:
- id
- name
- key_prefix
- environment
- scopes
- last_used_at
- created_at
RevokeApiKeyResult:
type: object
properties:
ok:
type: boolean
revoked:
type: object
properties:
id:
type: string
format: uuid
required:
- ok
- revoked
ApiKeyWithSecret:
allOf:
- $ref: '#/components/schemas/ApiKey'
- type: object
properties:
token:
type: string
description: The secret key (ig_live_… / ig_test_…). Shown only once.
required:
- token
CreateApiKeyRequest:
type: object
properties:
name:
type: string
minLength: 1
maxLength: 120
environment:
type: string
enum:
- live
- test
default: live
scopes:
type: array
items:
type: string
enum:
- read
- full
minItems: 1
default:
- full
expiresAt:
type: string
format: date-time
required:
- name
ApiKeyList:
type: object
properties:
items:
type: array
items:
$ref: '#/components/schemas/ApiKey'
required:
- items
responses:
NotFound:
description: Resource not found. Returns the structured error envelope with code `NOT_FOUND`.
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
BadRequest:
description: Invalid request. Returns the structured error envelope with code `BAD_REQUEST`.
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
InternalServerError:
description: Unexpected server error. Any unhandled failure is normalised by the root middleware into the structured error envelope with code `INTERNAL_ERROR` and a `requestId` for support.
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
example:
error:
code: INTERNAL_ERROR
message: Internal server error
requestId: 9f8c1b2a-3d4e-4f5a-8b6c-7d8e9f0a1b2c
Forbidden:
description: Authenticated but missing required scope or role. Returns the structured error envelope with code `FORBIDDEN`.
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
Unauthorized:
description: Missing or invalid credentials. Returns the structured error envelope with code `UNAUTHORIZED`.
headers:
API-Version:
$ref: '#/components/headers/ApiVersion'
WWW-Authenticate:
schema:
type: string
description: Bearer resource_metadata="https://api.inboxguard.io/.well-known/oauth-protected-resource"
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
parameters:
AcceptVersion:
name: Accept-Version
in: header
required: false
description: Optional API version opt-in. Omit to receive the current stable version (recommended). Send a specific version string only to opt into a future breaking-change version once one is published; unknown values fall back to the current stable version. The version actually served is echoed in the `API-Version` response header.
schema:
type: string
headers:
ApiVersion:
description: The API version that served this response. The URL surface is unversioned and stable; this header reports the current version so clients can detect breaking-change rollouts. Send the optional `Accept-Version` request header to pin a version once a future breaking version is published.
schema:
type: string
securitySchemes:
ApiKeyBearer:
type: http
scheme: bearer
bearerFormat: InboxGuard API key (ig_live_… / ig_test_…)
description: 'PRIMARY auth: send an InboxGuard API key as a bearer token (`Authorization: Bearer ig_live_…`). Scopes: `read` (GET) and `full` (all methods). Mint a key at https://inboxguard.io/settings or per https://inboxguard.io/auth.md.'
OAuth2:
type: oauth2
description: 'OAuth-shaped wrapper around the same API key. The ONLY grant is client_credentials at POST https://api.inboxguard.io/oauth/token, where the client_secret IS an InboxGuard API key (HTTP Basic or body); the returned access_token is that same key. There is NO authorization_code flow, NO PKCE, and NO /oauth/authorize endpoint. Discovery: /.well-known/oauth-authorization-server and /.well-known/oauth-protected-resource on api.inboxguard.io. See https://inboxguard.io/auth.md.'
flows:
clientCredentials:
tokenUrl: https://api.inboxguard.io/oauth/token
scopes:
read: Read-only access (GET).
full: Full read/write access (all methods).
externalDocs:
description: API quickstart and guides
url: https://inboxguard.io/guides/api-quickstart