fourzerotwo-si Earthquakes API
Earthquakes (USGS): Worldwide earthquakes in near real time: recent feeds, regional search and counts.
Earthquakes (USGS): Worldwide earthquakes in near real time: recent feeds, regional search and counts.
Every API here is available over the APIs.io API and to AI agents over MCP.
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.curl "https://apis.io/api/v1/apis/fourzerotwo-si:fourzerotwo-si-earthquakes-api"
curl "https://apis.io/api/v1/apis?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
openapi: 3.2.0
info:
title: Fourzerotwo Si Earthquakes API
version: 1.1.0
contact:
url: https://fourzerotwo.si
description: 'Operations tagged earthquakes across 2 of this provider''s published API definitions: openapi.json, fourzerotwo-si-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://fourzerotwo.si
tags:
- name: earthquakes
description: 'Earthquakes (USGS): Worldwide earthquakes in near real time: recent feeds, regional search and counts.'
paths:
/v1/earthquakes/significant-week:
get:
operationId: earthquakes__significant_week
summary: 'Earthquakes (USGS): Significant this week'
description: 'Significant earthquakes worldwide in the past 7 days. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- earthquakes
externalDocs:
url: https://fourzerotwo.si/apis/earthquakes/significant-week
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: earthquakes__significant-week
servers:
- url: https://fourzerotwo.si
/v1/earthquakes/m45-week:
get:
operationId: earthquakes__m45_week
summary: 'Earthquakes (USGS): M4.5+ this week'
description: 'Magnitude 4.5+ earthquakes worldwide in the past 7 days. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- earthquakes
externalDocs:
url: https://fourzerotwo.si/apis/earthquakes/m45-week
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: earthquakes__m45-week
servers:
- url: https://fourzerotwo.si
/v1/earthquakes/m25-day:
get:
operationId: earthquakes__m25_day
summary: 'Earthquakes (USGS): M2.5+ today'
description: 'Magnitude 2.5+ earthquakes worldwide in the past day. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- earthquakes
externalDocs:
url: https://fourzerotwo.si/apis/earthquakes/m25-day
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: earthquakes__m25-day
servers:
- url: https://fourzerotwo.si
/v1/earthquakes/near:
get:
operationId: earthquakes__near
summary: 'Earthquakes (USGS): Earthquakes near a point'
description: 'Earthquakes within a radius of a point since a date. Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- earthquakes
externalDocs:
url: https://fourzerotwo.si/apis/earthquakes/near
parameters:
- name: latitude
in: query
required: true
description: Latitude
schema:
type: string
example: '35.68'
- name: longitude
in: query
required: true
description: Longitude
schema:
type: string
example: '139.69'
- name: maxradiuskm
in: query
required: false
description: Radius km (default 20001)
schema:
type: integer
example: 300
- name: starttime
in: query
required: false
description: YYYY-MM-DD
schema:
type: string
example: '2026-09-01'
- name: minmagnitude
in: query
required: false
description: Minimum magnitude
schema:
type: string
example: '4'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.002000'
x-free-tier: free
x-mcp-tool: earthquakes__near
servers:
- url: https://fourzerotwo.si
/v1/earthquakes/count:
get:
operationId: earthquakes__count
summary: 'Earthquakes (USGS): Count earthquakes'
description: 'How many earthquakes match a time and magnitude window. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- earthquakes
externalDocs:
url: https://fourzerotwo.si/apis/earthquakes/count
parameters:
- name: starttime
in: query
required: true
description: YYYY-MM-DD
schema:
type: string
example: '2026-09-01'
- name: minmagnitude
in: query
required: false
description: Minimum magnitude
schema:
type: string
example: '5'
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: earthquakes__count
servers:
- url: https://fourzerotwo.si
/v1/earthquakes/event:
get:
operationId: earthquakes__event
summary: 'Earthquakes (USGS): Earthquake detail'
description: 'Full detail for one earthquake by USGS event id. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- earthquakes
externalDocs:
url: https://fourzerotwo.si/apis/earthquakes/event
parameters:
- name: eventid
in: query
required: true
description: USGS event id
schema:
type: string
example: us7000pn9s
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: earthquakes__event
servers:
- url: https://fourzerotwo.si
components:
responses:
PaymentRequired:
description: x402 payment required. The body (also base64 in the PAYMENT-REQUIRED header) lists accepted payments.
headers:
PAYMENT-REQUIRED:
schema:
type: string
description: Base64 JSON x402 v2 PaymentRequired
content:
application/json:
schema:
type: object
properties:
x402Version:
type: integer
error:
type: string
accepts:
type: array
items:
type: object
Error:
description: 400 = invalid input, 404 = not found at the source, 502 = the source failed. Never charged.
content:
application/json:
schema:
type: object
properties:
error:
type: string
charged:
type: boolean
securitySchemes:
freeKey:
type: apiKey
in: header
name: X-API-Key
description: Optional free key (fzt_…) for the free tier.
x-refined-from:
- openapi.json
- fourzerotwo-si-openapi.json