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curl "https://apis.io/api/v1/apis/matter-reading-sessions-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: Matter Account Reading Sessions API
version: '1.0'
description: 'The Matter API lets you read, save, and organize content in your Matter library.
Every request requires a [Bearer token](/api/authentication) and an active
Matter Pro subscription.
'
contact:
email: hello@getmatter.com
url: https://getmatter.com
servers:
- url: https://api.getmatter.com/public
description: Production
security:
- bearerAuth: []
tags:
- name: Reading Sessions
description: Reading time history.
paths:
/v1/reading_sessions:
get:
operationId: listReadingSessions
summary: List reading sessions
description: 'Returns a paginated list of reading sessions for the authenticated user,
ordered by date descending (newest first).
Each session records a single reading period with a timestamp and duration.
Use these to compute reading streaks, daily totals, or other time-based
statistics client-side.
'
tags:
- Reading Sessions
parameters:
- name: since
in: query
description: 'Only return sessions on or after this ISO 8601 datetime. Useful for incremental sync.
'
schema:
type: string
format: date-time
example: '2026-04-01T00:00:00Z'
- $ref: '#/components/parameters/limit'
- $ref: '#/components/parameters/cursor'
responses:
'200':
description: Paginated list of reading sessions.
headers:
X-RateLimit-Limit:
$ref: '#/components/headers/X-RateLimit-Limit'
X-RateLimit-Remaining:
$ref: '#/components/headers/X-RateLimit-Remaining'
X-RateLimit-Reset:
$ref: '#/components/headers/X-RateLimit-Reset'
content:
application/json:
schema:
allOf:
- $ref: '#/components/schemas/PaginatedList'
- type: object
properties:
results:
type: array
items:
$ref: '#/components/schemas/ReadingSession'
example:
object: list
results:
- object: reading_session
id: rs_k8x2m
date: '2026-04-09T14:23:00Z'
seconds_read: 180
- object: reading_session
id: rs_j7w1n
date: '2026-04-09T08:12:00Z'
seconds_read: 162
- object: reading_session
id: rs_h6v0p
date: '2026-04-08T21:45:00Z'
seconds_read: 480
has_more: true
next_cursor: eyJ1YSI6MTc...
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/ProRequired'
'429':
$ref: '#/components/responses/RateLimited'
components:
responses:
RateLimited:
description: Rate limit exceeded.
headers:
Retry-After:
description: Seconds to wait before retrying.
schema:
type: integer
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
example:
error:
code: rate_limited
message: Rate limit exceeded. Retry after 12 seconds.
ProRequired:
description: Active Matter Pro subscription required.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
example:
error:
code: pro_required
message: A Matter Pro subscription is required to use the API.
Unauthorized:
description: Invalid or missing API token.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
example:
error:
code: authentication_required
message: A valid API token is required.
parameters:
limit:
name: limit
in: query
description: Number of results per page. Min 1, max 100.
schema:
type: integer
default: 25
minimum: 1
maximum: 100
cursor:
name: cursor
in: query
description: Opaque cursor for the next page of results, from a previous `next_cursor`.
schema:
type: string
headers:
X-RateLimit-Reset:
description: Unix timestamp (seconds) when the window resets.
schema:
type: integer
X-RateLimit-Limit:
description: Maximum requests allowed in the current window.
schema:
type: integer
X-RateLimit-Remaining:
description: Requests remaining in the current window.
schema:
type: integer
schemas:
Error:
type: object
required:
- error
properties:
error:
type: object
required:
- code
- message
properties:
code:
type: string
description: Machine-readable error code.
message:
type: string
description: Human-readable error message.
field:
type: string
description: The request field that caused the error, if applicable.
ReadingSession:
type: object
required:
- object
- id
- date
- seconds_read
properties:
object:
type: string
const: reading_session
id:
type: string
description: Prefixed reading session ID (e.g. `rs_k8x2m`).
example: rs_k8x2m
date:
type: string
format: date-time
description: When the reading session occurred (UTC).
example: '2026-04-09T14:23:00Z'
seconds_read:
type: integer
description: Duration of the session in seconds.
example: 180
PaginatedList:
type: object
required:
- object
- results
- has_more
properties:
object:
type: string
const: list
results:
type: array
items: {}
has_more:
type: boolean
description: Whether there are more results after this page.
next_cursor:
type: string
nullable: true
description: Cursor to fetch the next page. `null` when there are no more results.
securitySchemes:
bearerAuth:
type: http
scheme: bearer
description: 'Personal API token with `mat_` prefix. Generate one at https://web.getmatter.com/settings.
'