EdgeChat Rank API
The Rank API from EdgeChat — 2 operation(s) for rank.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Edgepedia Rank API
version: '1'
description: Read-only JSON access to the Edgepedia encyclopedia articles. Keyless. 600 requests a minute and 100,000 a day per IP address (429 with Retry-After past that). Free with credit under the Edgepedia Community License 1.0; AI training is open to everyone.
license:
name: Edgepedia Community License 1.0
url: https://www.edgechat.ai/edgepedia/license
contact:
url: https://www.edgechat.ai/developers
name: EdgeChat
email: olivia.jin@biostate.ai
x-logo:
url: https://www.edgechat.ai/assets/edgechat-chestnut-orange-logo-v2.png
altText: EdgeChat
backgroundColor: '#FFFFFF'
href: https://www.edgechat.ai/developers
x-origin:
- format: openapi
version: '3.1'
url: https://www.edgechat.ai/openapi.json
servers:
- url: https://www.edgechat.ai/api/v1
tags:
- name: Rank
paths:
/rank:
get:
operationId: getRank
summary: PageRank of up to 50 articles
description: pr sums to 1; rank 1 is the most central.
parameters:
- name: ids
in: query
required: true
description: Comma-separated ids.
schema:
type: string
example: ep7rbwcy0a
- $ref: '#/components/parameters/fields'
responses:
'200':
description: OK
content:
application/json:
schema:
$ref: '#/components/schemas/GetRankResponse'
examples:
live:
summary: GET https://www.edgechat.ai/api/v1/rank?ids=ep7rbwcy0a
description: 'A live answer of 2026-10-07: arrays cut to two items, long text cut with an ellipsis.'
value:
ranks:
ep7rbwcy0a:
slug: koala
title: Koala
pr: 4.19991e-07
rank: 222907
missing: []
license:
name: Edgepedia Community License 1.0
url: https://www.edgechat.ai/edgepedia/license
summary: Free with credit, commercial use included. AI training is open to everyone. For other uses, organizations over USD 100M in revenue or 100M monthly users license separately.
headers:
RateLimit-Policy:
$ref: '#/components/headers/RateLimit-Policy'
ETag:
$ref: '#/components/headers/ETag'
Last-Modified:
$ref: '#/components/headers/Last-Modified'
Content-Digest:
$ref: '#/components/headers/Content-Digest'
Edgepedia-Corpus-Version:
$ref: '#/components/headers/Edgepedia-Corpus-Version'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'503':
$ref: '#/components/responses/Error'
tags:
- Rank
/rank/top:
get:
operationId: getRankTop
summary: The most central articles
description: 'Optionally within a topic. `complete: false` means the route''s time budget cut the answer short; such an answer is cached for a minute only.'
parameters:
- name: topic
in: query
required: false
description: ''
schema:
type: string
- name: limit
in: query
required: false
description: ''
schema:
type: integer
minimum: 1
maximum: 100
example: '5'
- $ref: '#/components/parameters/fields'
responses:
'200':
description: OK
content:
application/json:
schema:
$ref: '#/components/schemas/GetRankTopResponse'
examples:
live:
summary: GET https://www.edgechat.ai/api/v1/rank/top?limit=5
description: 'A live answer of 2026-10-07: arrays cut to two items, long text cut with an ellipsis.'
value:
limit: 5
complete: true
results:
- id: ep3mzvga97
slug: renaissance
title: Renaissance
topic: Society and history
excerpt: The Renaissance, or Il Rinascimento, was a European cultural movement from the 14th to the 17th century that began in Florence and revived classical art, literature, and philosophy.
node: society.history.europe.western.renaissance
rank: 1
pr: 0.00112876
url: https://www.edgechat.ai/renaissance
api_url: https://www.edgechat.ai/api/v1/articles/renaissance
- id: ep56nd5tmx
slug: constantinople
title: Constantinople (Κωνσταντινούπολις)
topic: Society and history
excerpt: Constantinople (Κωνσταντινούπολις), founded by Constantine I in 330 on the site of Byzantium, served as capital of the Roman, Byzantine, and Ottoman empires until 1922.
node: society.history.europe.eastern-europe.ee-byzantium.institutions-law-and-military
rank: 2
pr: 0.00112038
url: https://www.edgechat.ai/constantinople
api_url: https://www.edgechat.ai/api/v1/articles/constantinople
license:
name: Edgepedia Community License 1.0
url: https://www.edgechat.ai/edgepedia/license
summary: Free with credit, commercial use included. AI training is open to everyone. For other uses, organizations over USD 100M in revenue or 100M monthly users license separately.
headers:
RateLimit-Policy:
$ref: '#/components/headers/RateLimit-Policy'
ETag:
$ref: '#/components/headers/ETag'
Last-Modified:
$ref: '#/components/headers/Last-Modified'
Content-Digest:
$ref: '#/components/headers/Content-Digest'
Edgepedia-Corpus-Version:
$ref: '#/components/headers/Edgepedia-Corpus-Version'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'503':
$ref: '#/components/responses/Error'
tags:
- Rank
components:
headers:
RateLimit-Policy:
description: 'The limiter''s two windows, per IP address and per server instance (IETF RateLimit header fields): 600 requests a minute and 100,000 a day.'
schema:
type: string
example: '"minute";q=600;w=60, "day";q=100000;w=86400'
Content-Digest:
description: sha-256 of the body (RFC 9530).
schema:
type: string
Edgepedia-Corpus-Version:
description: The corpus release that answered.
schema:
type: string
Last-Modified:
description: The corpus release date (informational; only the ETag validates).
schema:
type: string
ETag:
description: A hash of the body; send it back as If-None-Match for a 304.
schema:
type: string
responses:
Error:
description: 'An error: { error: { code, message } }'
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
schemas:
GetRankTopResponse:
type: object
properties:
limit:
type: integer
complete:
type: boolean
description: 'false when the route''s time budget (about a second) cut the answer short: fewer results or edges, or importance by in-degree alone. Such an answer is cached for a minute only.'
results:
type: array
items:
type: object
properties:
id:
type: string
slug:
type: string
title:
type: string
topic:
type: string
excerpt:
type: string
node:
type: string
rank:
type: integer
pr:
type: number
url:
type: string
api_url:
type: string
license:
type: object
properties:
name:
type: string
url:
type: string
summary:
type: string
description: 'Shape read from a live answer of 2026-10-07; fields may be added, never renamed or removed. Every field is optional: an answer carries the fields of its own branch.'
Error:
type: object
properties:
error:
type: object
properties:
code:
type: string
message:
type: string
hint:
type: string
next:
type: string
format: uri
did_you_mean:
type: array
items:
type: object
properties:
id:
type: string
slug:
type: string
title:
type: string
api_url:
type: string
required:
- code
- message
required:
- error
GetRankResponse:
type: object
properties:
ranks:
type: object
description: Keyed by each id as asked (an ep… id, an older id, or an address).
additionalProperties:
type: object
properties:
id:
type: string
description: The ep… id, when the key is not one.
slug:
type: string
title:
type: string
pr:
type: number
rank:
type: integer
missing:
type: array
items:
type: string
license:
type: object
properties:
name:
type: string
url:
type: string
summary:
type: string
description: 'Shape read from a live answer of 2026-10-07; fields may be added, never renamed or removed. Every field is optional: an answer carries the fields of its own branch.'
parameters:
fields:
name: fields
in: query
required: false
description: 'Comma-separated keys: each result (or the answer, when it has no results) keeps only these.'
schema:
type: string