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OpenAPI Specification
openapi: 3.2.0
info:
title: 2s — the (most) everything News API
version: '1'
summary: The (most) everything API.
description: 'The (most) everything API for AI agents: 575+ pay-per-call endpoints on one origin.'
contact:
name: 2s
url: https://2s.io
email: alley@2s.io
x-logo:
url: https://2s.io/icon-512.png
altText: 2s
x-guidance: 'Pay-per-call REST API for AI agents — hundreds of endpoints returning ground-truth data (US public records, company & legal identifiers, finance/SEC, crypto/web3, security & CVEs, medical codes, weather & geocoding, agriculture, energy, maritime, music, and more). Every endpoint is paid per call in USDC via x402 (Base or Solana) — no API key, no signup. Call any endpoint with no auth to get a 402 PaymentRequirements envelope, sign it (EIP-3009 on Base, partial SPL transfer on Solana), and retry with the PAYMENT-SIGNATURE header. Add ?trial=1 for one free real call per endpoint per hour to test before paying. To discover the right endpoint: GET https://2s.io/api/directory for the full catalog, or GET https://2s.io/api/search/endpoints?q=<natural-language task> for a ranked match. Per-call price is on each operation as x-payment-info (from $0.001). Batch up to 50 calls behind one payment via POST https://2s.io/api/batch/run.'
servers:
- url: https://2s.io
tags:
- name: News
paths:
/api/news/hn-item:
get:
tags:
- News
summary: Fetch a specific Hacker News item (story, comment, job
description: Fetch a specific Hacker News item (story, comment, job, poll) by its numeric ID. Returns id, type, author, time (unix + ISO), title, URL, text, score, descendant count, kid count, parent (for comments), dead/deleted flags, canonical news.ycombinator.com URL.
operationId: news_hn-item
deprecated: false
security:
- x402Payment: []
responses:
'200':
description: 'Normalized envelope: items = [HN item] (story/comment/job/poll by id); total = 1, or items = [] / total = 0 when the id is unknown.'
content:
application/json:
schema:
type: object
required:
- data
- meta
properties:
data:
type: object
properties:
ok:
type: boolean
enum:
- true
items:
type: array
items:
type: object
properties:
id:
type: integer
type:
type: string
nullable: true
by:
type: string
nullable: true
time:
type: integer
nullable: true
timeIso:
type: string
nullable: true
title:
type: string
nullable: true
url:
type: string
nullable: true
text:
type: string
nullable: true
score:
type: integer
nullable: true
descendantsCount:
type: integer
nullable: true
kidsCount:
type: integer
parent:
type: integer
nullable: true
deleted:
type: boolean
dead:
type: boolean
hnUrl:
type: string
format: uri
required:
- id
- type
- by
- time
- timeIso
- title
- url
- text
- score
- descendantsCount
- kidsCount
- parent
- deleted
- dead
- hnUrl
additionalProperties: false
total:
type: integer
nullable: true
description: Total matching rows upstream; null when unknown.
source:
$ref: '#/components/schemas/Source'
required:
- ok
- items
- total
- source
additionalProperties: false
meta:
$ref: '#/components/schemas/CallMeta'
'400':
$ref: '#/components/responses/BadRequest'
'402':
$ref: '#/components/responses/PaymentRequired'
'405':
$ref: '#/components/responses/MethodNotAllowed'
'500':
$ref: '#/components/responses/ServerError'
'502':
$ref: '#/components/responses/UpstreamError'
x-2s-id: news.hn-item
x-2s-version: null
x-2s-price:
usd: 0.003
x-2s-accepts:
- x402
x-2s-response-shape: normalized
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.003000'
protocols:
- x402: {}
parameters:
- name: id
in: query
required: true
description: Unique identifier of the record to fetch.
schema:
type: integer
minimum: 1
maximum: 1000000000
- $ref: '#/components/parameters/TrialMode'
/api/news/hn-search:
get:
tags:
- News
summary: Full-text search across all of Hacker News (via the Algolia
description: 'Full-text search across all of Hacker News (via the Algolia HN API). Search stories or comments by keyword, sorted by relevance or by date (newest first). Filter by tags (story/comment/ask_hn/show_hn/poll) and by author. Each hit: title, URL, author, points, comment count, story/comment text, created time, and canonical HN URL. Net-new vs news.hn-top (curated feeds) and news.search (general news).'
operationId: news_hn-search
deprecated: false
security:
- x402Payment: []
responses:
'200':
description: 'Normalized: items = search hits; meta.nbHits = total matches upstream.'
content:
application/json:
schema:
type: object
required:
- data
- meta
properties:
data:
type: object
properties:
ok:
type: boolean
enum:
- true
items:
type: array
items:
type: object
properties:
objectId:
type: string
nullable: true
type:
type: string
title:
type: string
nullable: true
url:
type: string
nullable: true
author:
type: string
nullable: true
points:
type: number
nullable: true
numComments:
type: number
nullable: true
storyText:
type: string
nullable: true
commentText:
type: string
nullable: true
createdAt:
type: string
nullable: true
storyId:
type: number
nullable: true
hnUrl:
type: string
required:
- objectId
- type
- title
- url
- author
- points
- numComments
- storyText
- commentText
- createdAt
- storyId
- hnUrl
additionalProperties: false
total:
type: integer
nullable: true
description: Total matching rows upstream; null when unknown.
source:
$ref: '#/components/schemas/Source'
meta:
type: object
properties:
query:
type: string
nbHits:
type: number
required:
- query
- nbHits
additionalProperties: false
required:
- ok
- items
- total
- source
additionalProperties: false
meta:
$ref: '#/components/schemas/CallMeta'
'400':
$ref: '#/components/responses/BadRequest'
'402':
$ref: '#/components/responses/PaymentRequired'
'405':
$ref: '#/components/responses/MethodNotAllowed'
'500':
$ref: '#/components/responses/ServerError'
'502':
$ref: '#/components/responses/UpstreamError'
x-2s-id: news.hn-search
x-2s-version: null
x-2s-price:
usd: 0.003
x-2s-accepts:
- x402
x-2s-response-shape: normalized
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.003000'
protocols:
- x402: {}
parameters:
- name: query
in: query
required: false
description: Search keywords (may be empty when filtering by tags/author).
schema:
type: string
maxLength: 400
default: ''
- name: tags
in: query
required: false
description: Tags.
schema:
type: string
enum:
- story
- comment
- ask_hn
- show_hn
- poll
- name: sort
in: query
required: false
description: Field to sort results by.
schema:
type: string
enum:
- relevance
- date
- name: author
in: query
required: false
description: Restrict to one HN author.
schema:
type: string
maxLength: 40
- name: limit
in: query
required: false
description: Maximum number of results to return.
schema:
type: integer
minimum: 1
maximum: 50
- $ref: '#/components/parameters/TrialMode'
/api/news/hn-top:
get:
tags:
- News
summary: Hacker News feed of items
description: Hacker News feed of items. Pass kind = top (default) | new | best | ask | show | job to pick the feed. Returns each item's id, type, author, time (unix + ISO), title, URL, text (for self-posts), score, descendant + kid counts, parent (for comments), dead/deleted flags, and canonical news.ycombinator.com URL. Default limit = 30, max 100. Useful for tech-sentiment + topic tracking.
operationId: news_hn-top
deprecated: false
security:
- x402Payment: []
responses:
'200':
description: 'Normalized envelope: items = Hacker News feed items; total = null (HN feeds report no true count); meta.kind echoes the requested feed.'
content:
application/json:
schema:
type: object
required:
- data
- meta
properties:
data:
type: object
properties:
ok:
type: boolean
enum:
- true
items:
type: array
items:
type: object
properties:
id:
type: integer
type:
type: string
nullable: true
by:
type: string
nullable: true
time:
type: integer
nullable: true
timeIso:
type: string
nullable: true
title:
type: string
nullable: true
url:
type: string
nullable: true
text:
type: string
nullable: true
score:
type: integer
nullable: true
descendantsCount:
type: integer
nullable: true
kidsCount:
type: integer
parent:
type: integer
nullable: true
deleted:
type: boolean
dead:
type: boolean
hnUrl:
type: string
format: uri
required:
- id
- type
- by
- time
- timeIso
- title
- url
- text
- score
- descendantsCount
- kidsCount
- parent
- deleted
- dead
- hnUrl
additionalProperties: false
total:
type: integer
nullable: true
description: Total matching rows upstream; null when unknown.
source:
$ref: '#/components/schemas/Source'
meta:
type: object
properties:
kind:
type: string
required:
- kind
additionalProperties: false
required:
- ok
- items
- total
- source
additionalProperties: false
meta:
$ref: '#/components/schemas/CallMeta'
'400':
$ref: '#/components/responses/BadRequest'
'402':
$ref: '#/components/responses/PaymentRequired'
'405':
$ref: '#/components/responses/MethodNotAllowed'
'500':
$ref: '#/components/responses/ServerError'
'502':
$ref: '#/components/responses/UpstreamError'
x-2s-id: news.hn-top
x-2s-version: null
x-2s-price:
usd: 0.003
x-2s-accepts:
- x402
x-2s-response-shape: normalized
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.003000'
protocols:
- x402: {}
parameters:
- name: kind
in: query
required: false
description: Kind.
schema:
type: string
enum:
- top
- new
- best
- ask
- show
- job
default: top
- name: limit
in: query
required: false
description: Maximum number of results to return.
schema:
type: integer
minimum: 1
maximum: 100
default: 30
- $ref: '#/components/parameters/TrialMode'
/api/news/hn-user:
get:
tags:
- News
summary: Hacker News user profile by username
description: Hacker News user profile by username. Returns id, account creation time (unix + ISO), karma, the about/bio text, number of items submitted, and the canonical news.ycombinator.com profile URL. Unknown user returns an empty result.
operationId: news_hn-user
deprecated: false
security:
- x402Payment: []
responses:
'200':
description: 'Normalized: items = [HN user] or [] when unknown.'
content:
application/json:
schema:
type: object
required:
- data
- meta
properties:
data:
type: object
properties:
ok:
type: boolean
enum:
- true
items:
type: array
items:
type: object
properties:
id:
type: string
nullable: true
created:
type: number
nullable: true
createdIso:
type: string
nullable: true
karma:
type: number
nullable: true
about:
type: string
nullable: true
submittedCount:
type: number
nullable: true
hnUrl:
type: string
nullable: true
required:
- id
- created
- createdIso
- karma
- about
- submittedCount
- hnUrl
additionalProperties: false
total:
type: integer
nullable: true
description: Total matching rows upstream; null when unknown.
source:
$ref: '#/components/schemas/Source'
required:
- ok
- items
- total
- source
additionalProperties: false
meta:
$ref: '#/components/schemas/CallMeta'
'400':
$ref: '#/components/responses/BadRequest'
'402':
$ref: '#/components/responses/PaymentRequired'
'405':
$ref: '#/components/responses/MethodNotAllowed'
'500':
$ref: '#/components/responses/ServerError'
'502':
$ref: '#/components/responses/UpstreamError'
x-2s-id: news.hn-user
x-2s-version: null
x-2s-price:
usd: 0.003
x-2s-accepts:
- x402
x-2s-response-shape: normalized
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.003000'
protocols:
- x402: {}
parameters:
- name: username
in: query
required: true
description: HN username, e.g. pg, dang.
schema:
type: string
minLength: 1
maxLength: 40
- $ref: '#/components/parameters/TrialMode'
/api/news/search:
get:
tags:
- News
summary: Live news search. Returns recent headlines with title, URL
description: Live news search. Returns recent headlines with title, URL, snippet, publisher source, relative age, and a breaking-news flag — real-time coverage past any model training cutoff. Supports count (1-20), offset, country (2-letter), and freshness (pd=past day, pw=past week, pm=past month, py=past year). Use for current events, market-moving developments, monitoring, and "what happened with X" questions. For general web results see /api/search/web; for Hacker News specifically see /api/news/hn-top.
operationId: news_search
deprecated: false
security:
- x402Payment: []
responses:
'200':
description: 'Normalized envelope: items = recent news headlines (publisher, age, breaking flag); total = null (Brave reports no count); meta.query echoes the search.'
content:
application/json:
schema:
type: object
required:
- data
- meta
properties:
data:
type: object
properties:
ok:
type: boolean
enum:
- true
items:
type: array
items:
type: object
properties:
title:
type: string
url:
type: string
description:
type: string
nullable: true
source:
type: string
nullable: true
description: Publisher hostname.
age:
type: string
nullable: true
description: Relative recency, e.g. "5 hours ago".
breaking:
type: boolean
thumbnail:
type: string
nullable: true
required:
- title
- url
- description
- source
- age
- breaking
- thumbnail
additionalProperties: false
total:
type: integer
nullable: true
description: Total matching rows upstream; null when unknown.
source:
$ref: '#/components/schemas/Source'
meta:
type: object
properties:
query:
type: string
required:
- query
additionalProperties: false
required:
- ok
- items
- total
- source
additionalProperties: false
meta:
$ref: '#/components/schemas/CallMeta'
'400':
$ref: '#/components/responses/BadRequest'
'402':
$ref: '#/components/responses/PaymentRequired'
'405':
$ref: '#/components/responses/MethodNotAllowed'
'500':
$ref: '#/components/responses/ServerError'
'502':
$ref: '#/components/responses/UpstreamError'
x-2s-id: news.search
x-2s-version: null
x-2s-price:
usd: 0.0225
x-2s-accepts:
- x402
x-2s-response-shape: normalized
x-payment-info:
price:
mode: fixed
currency: USD
amount: '0.022500'
protocols:
- x402: {}
parameters:
- name: q
in: query
required: true
description: News query.
schema:
type: string
minLength: 1
maxLength: 400
- name: count
in: query
required: false
description: Count.
schema:
type: integer
minimum: 1
maximum: 20
default: 10
- name: offset
in: query
required: false
description: Number of results to skip before returning (pagination offset).
schema:
type: integer
minimum: 0
maximum: 9
default: 0
- name: country
in: query
required: false
description: Country name or ISO country code.
schema:
type: string
pattern: ^[a-zA-Z]{2}$
- name: freshness
in: query
required: false
description: Freshness.
schema:
type: string
enum:
- pd
- pw
- pm
- py
- $ref: '#/components/parameters/TrialMode'
components:
schemas:
Source:
type: object
description: 'Provenance of the data: upstream provider, source URL, and license.'
properties:
provider:
type: string
description: Upstream data provider.
url:
type: string
description: Source URL or documentation link.
license:
type: string
description: License / usage terms for the data.
CallMeta:
type: object
description: Per-call meta envelope — endpoint id, cost, caller kind, settlement details.
X402PaymentRequiredV2:
type: object
description: x402 v2 PaymentRequired envelope. Pick any entry from accepts[], sign for that rail, retry with the PAYMENT-SIGNATURE header.
required:
- x402Version
- accepts
properties:
x402Version:
type: integer
const: 2
error:
type: string
description: Human-readable reason payment is required.
resource:
type: string
description: The resource URL being purchased.
accepts:
type: array
description: Payment requirement options, one per supported network (Base USDC, Solana USDC).
items:
type: object
required:
- scheme
- network
- amount
- asset
- payTo
- maxTimeoutSeconds
properties:
scheme:
type: string
enum:
- exact
network:
type: string
description: CAIP-2 network id, e.g. "eip155:8453" (Base) or "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp".
amount:
type: string
description: Price in atomic asset units (USDC has 6 decimals).
asset:
type: string
description: Asset contract address / mint.
payTo:
type: string
description: Treasury address to pay.
maxTimeoutSeconds:
type: integer
extra:
type: object
description: 'Rail-specific extras (EVM: EIP-712 domain name/version; Solana: feePayer).'
additionalProperties: true
extensions:
type: object
description: Optional discovery metadata (e.g. bazaar input/output schemas).
additionalProperties: true
responses:
PaymentRequired:
description: Payment required. Body contains the x402 PaymentRequirements envelope with a multi-network accepts array; the per-call price is in accepts[].amount (and on the operation as x-2s-price). Sign for whichever rail you hold USDC on (EIP-3009 for Base, partial SPL transfer for Solana) and retry with the PAYMENT-SIGNATURE header (X-PAYMENT also accepted for v1 clients).
content:
application/json:
schema:
$ref: '#/components/schemas/X402PaymentRequiredV2'
UpstreamError:
description: Upstream provider error.
MethodNotAllowed:
description: Method not allowed — see `Allow` header for the supported method.
ServerError:
description: Internal server error.
BadRequest:
description: Bad request — invalid parameters.
parameters:
TrialMode:
name: trial
in: query
required: false
description: 'Try before you buy. Set to 1 for one free real call per endpoint per hour — no wallet or payment needed — to verify the endpoint before paying. Equivalent to sending the "X-2s-Trial: 1" request header. Works on every endpoint.'
schema:
type: integer
enum:
- 1
securitySchemes:
x402Payment:
type: apiKey
in: header
name: PAYMENT-SIGNATURE
description: 'x402 protocol v2: base64-encoded PaymentPayload. Call any paid endpoint without auth to receive a 402 with a multi-network PaymentRequirements envelope. Sign for either rail: EIP-3009 transferWithAuthorization (Base USDC) OR a partial SPL token transfer (Solana USDC). Retry with PAYMENT-SIGNATURE header. X-PAYMENT is also accepted for v1 buyer clients. See https://x402.org.'