Properties
| Name | Type | Description |
|---|---|---|
| campaign | object | |
| counts | object | A bot is an open or a click within two minutes of delivery (security gateways visit every link as the message arrives; privacy relays preload images), or one from a robot that declares itself in its u |
| rates | object | Shares between 0 and 1; `null` as long as the denominator is empty. |
| bots | object | Opens and clicks set aside as bots, counted as events (a gateway visiting three links counts three clicks), and why. |
| timeline | array | Eight six-hour windows from the send, `+0h` to `+42h`. Empty if the campaign has not gone out. |
| audience | object | |
| links | array | From most to least clicked, by people (bot clicks excluded). |
| html | string | The HTML as rendered at send time; empty string as long as it does not exist. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/mailcheer-com/json-schema/mailcheer-com-campaign-stats-schema.json",
"title": "CampaignStats",
"x-generated": "2026-10-31",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/mailcheer-com-openapi.json#/components/schemas/CampaignStats",
"type": "object",
"properties": {
"campaign": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"name": {
"type": "string"
},
"subject": {
"type": "string"
},
"status": {
"type": "string",
"enum": [
"draft",
"scheduled",
"sending",
"testing",
"sent",
"archived"
]
},
"kind": {
"type": "string"
},
"fromName": {
"type": "string"
},
"fromEmail": {
"type": "string"
},
"sentAt": {
"type": [
"string",
"null"
],
"format": "date-time"
},
"scheduledAt": {
"type": [
"string",
"null"
],
"format": "date-time"
},
"updatedAt": {
"type": "string",
"format": "date-time"
}
}
},
"counts": {
"type": "object",
"properties": {
"recipients": {
"type": "integer"
},
"delivered": {
"type": "integer"
},
"opened": {
"type": "integer"
},
"clicked": {
"type": "integer"
},
"humanOpened": {
"type": "integer",
"description": "Messages opened (or clicked) at least once by a person."
},
"humanClicked": {
"type": "integer",
"description": "Messages clicked at least once by a person."
},
"bounced": {
"type": "integer"
},
"complained": {
"type": "integer"
},
"unsubscribed": {
"type": "integer",
"description": "People who unsubscribed through this campaign's link (same definition as `recipients?status=unsubscribed`). An unsubscribe made through the API or in the app counts on no campaign."
},
"untracked": {
"type": "integer",
"description": "Delivered messages that went out without an open-tracking pixel. Open rates are computed on the others; with none left, they are `null`."
}
},
"description": "A bot is an open or a click within two minutes of delivery (security gateways visit every link as the message arrives; privacy relays preload images), or one from a robot that declares itself in its user agent or comes from an address range its operator publishes (Google, Bing). Privacy relays (Apple Mail, Gmail, Yahoo) are not bots in themselves."
},
"rates": {
"type": "object",
"description": "Shares between 0 and 1; `null` as long as the denominator is empty.",
"properties": {
"delivered": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1
},
"opened": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1
},
"clicked": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1
},
"humanOpened": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1,
"description": "`opened` without bots, on delivered messages."
},
"humanClicked": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1,
"description": "`clicked` without bots, on delivered messages."
},
"bounced": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1
}
}
},
"bots": {
"type": "object",
"description": "Opens and clicks set aside as bots, counted as events (a gateway visiting three links counts three clicks), and why.",
"properties": {
"opened": {
"type": "integer",
"description": "Bot opens."
},
"clicked": {
"type": "integer",
"description": "Bot clicks."
},
"delay": {
"type": "integer",
"description": "Within two minutes of delivery."
},
"scanner": {
"type": "integer",
"description": "A robot that declares itself, or an address its operator publishes."
}
}
},
"timeline": {
"type": "array",
"description": "Eight six-hour windows from the send, `+0h` to `+42h`. Empty if the campaign has not gone out.",
"items": {
"type": "object",
"properties": {
"label": {
"type": "string"
},
"opened": {
"type": "integer"
},
"clicked": {
"type": "integer"
},
"humanOpened": {
"type": "integer",
"description": "Opens by people in the window."
},
"humanClicked": {
"type": "integer",
"description": "Clicks by people in the window."
}
}
}
},
"audience": {
"type": "object",
"properties": {
"total": {
"type": "integer",
"description": "Opens by people whose device is known (bot opens excluded)."
},
"proxiedShare": {
"type": [
"number",
"null"
],
"minimum": 0,
"maximum": 1,
"description": "Share of opens coming from a privacy relay (Apple Mail, Gmail): received, not necessarily read."
},
"device": {
"type": "array",
"description": "Five rows at most, from the most to the least frequent.",
"items": {
"type": "object",
"properties": {
"label": {
"type": "string"
},
"count": {
"type": "integer"
},
"share": {
"type": "number",
"minimum": 0,
"maximum": 1
}
}
}
},
"os": {
"type": "array",
"description": "Five rows at most, from the most to the least frequent.",
"items": {
"type": "object",
"properties": {
"label": {
"type": "string"
},
"count": {
"type": "integer"
},
"share": {
"type": "number",
"minimum": 0,
"maximum": 1
}
}
}
},
"client": {
"type": "array",
"description": "Five rows at most, from the most to the least frequent.",
"items": {
"type": "object",
"properties": {
"label": {
"type": "string"
},
"count": {
"type": "integer"
},
"share": {
"type": "number",
"minimum": 0,
"maximum": 1
}
}
}
}
}
},
"links": {
"type": "array",
"description": "From most to least clicked, by people (bot clicks excluded).",
"items": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"clicks": {
"type": "integer"
}
}
}
},
"html": {
"type": "string",
"description": "The HTML as rendered at send time; empty string as long as it does not exist."
}
}
}
Work with this as data
Every JSON Schema 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 schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.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 JSON Schema
curl "https://apis.io/api/v1/json-schemas/mailcheer-com-campaign-stats"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
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.