Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
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.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/corestack:corestack-on-premises-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"
Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
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 Specification
openapi: 3.2.0
info:
title: Corestack On premises API
version: 1.0.0
license:
name: CoreStack Inc License
url: http://corestack.io/licenses/LICENSE-2.0.html
termsOfService: http://corestack.io/
description: 'Operations tagged On premises across 2 of this provider''s published API definitions: corestack-external-api-openapi-original.json, corestack-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: /
tags:
- name: On premises
description: Manage On premises Metrics
paths:
/v1/on_premises/utilization/metric:
post:
responses:
'500':
description: Internal Server Error
content:
application/json:
schema:
$ref: '#/components/schemas/ModelError'
'401':
description: Unauthorized
content:
application/json:
schema:
$ref: '#/components/schemas/ModelError'
'400':
description: Bad Request
content:
application/json:
schema:
$ref: '#/components/schemas/ModelError'
'200':
description: Fetched
content:
application/json:
schema:
$ref: '#/components/schemas/UtilizationResourceAggregationResponse'
description: Retrieve the Utilization metric Data for the given period of time in the granularity provided.
operationId: OnPremisesUtilizationMetricAggregateTrend
security:
- auth_token: []
tags:
- On premises
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/OnPremisesMonitoringRequest'
required: true
summary: On premises utilization metric aggregate trend
x-summary-source: derived
servers:
- url: /
components:
schemas:
OnPremisesMonitoringRequest:
required:
- aggregation
- metric_name
- resource_id
properties:
service_account_id:
type: string
description: ID of the service account
resource_id:
type: string
description: Resource identifier
aggregation:
type: string
description: Aggregation type (e.g., average, sum, maximum)
metric_name:
type: array
description: List of metric names
items:
type: string
from_date:
type: string
format: date-time
description: Start timestamp (ISO string or epoch). If not provided, defaults to 7 days ago.
to_date:
type: string
format: date-time
description: End timestamp (ISO string or epoch). If not provided, defaults to now.
type: object
ResourceUtilizationMetric:
properties:
unit:
type: string
description: Unit of the metric
metric_name:
type: string
description: Name of the metric
timeseries:
type: array
items:
$ref: '#/components/schemas/TimeSeriesPoint'
type: object
ModelError:
required:
- message
properties:
message:
type: string
description: Error response message.
type: object
TimeSeriesPoint:
properties:
timestamp:
type: string
format: date-time
description: Timestamp in ISO format
average:
type: number
description: Average value
total:
type: number
description: Total value
minimum:
type: number
description: Minimum value
maximum:
type: number
description: Maximum value
count:
type: integer
description: Count
type: object
UtilizationResourceAggregationResponse:
properties:
hourly_aggregations:
type: array
description: List of supported hourly aggregation types (e.g., avg, min, max) for utilization metrics
items:
type: string
daily_aggregations:
type: array
description: List of supported daily aggregation types (e.g., avg, min, max) for utilization metrics
items:
type: string
time_aggregation:
type: array
description: Time-based aggregation levels available for utilization data (hourly, daily)
items:
type: string
metrics:
type: array
description: List of utilization metrics and their supported aggregation configurations
items:
$ref: '#/components/schemas/ResourceUtilizationMetric'
type: object
securitySchemes:
auth_token:
type: apiKey
in: header
name: X-Auth-Token
x-refined-from:
- corestack-external-api-openapi-original.json
- corestack-openapi.json