---
title: Calculate End Date
slug: calculate-end-date
createdAt: 2026-08-25T19:28:59.170Z
---
{
"id": "olp2EHiBANn2qCdWFaSYD",
"type": "api-oas-v2",
"data": {
"method": "POST",
"url": "https://api.nue.io/pricing/terms/calculateEndDate",
"servers": [
{
"url": "https://api.nue.io/pricing/terms/calculateEndDate",
"description": "**Production Environment** - Live production server for all customer-facing operations. Use this for production integrations with real customer data and transactions."
},
{
"url": "https://api.sandbox.nue.io/pricing/terms/calculateEndDate",
"description": "**Sandbox Environment** - Safe testing environment with sample data for development and integration testing. No rate limits apply. Data is reset weekly. Perfect for prototyping and QA testing."
}
],
"name": "Calculate End Date",
"description": "Given a subscription start date and a term length, calculates the end date. This is the inverse of Calculate Term and mirrors how the order engine derives subscriptionEndDate from start + term during order creation.
\nUse it to preview the end date a customer's order will land on before you submit it, or to display an end date in a UI where the user enters a term.
\nThe endpoint is batch: send one or more calculations in the requests array and receive a results array in the same order.
",
"contentType": "application/json",
"request": {
"pathParameters": [],
"headerParameters": [
{
"name": "accept",
"type": "string",
"kind": "optional",
"description": "Generated from available response content types",
"enum": [
"application/json"
],
"default": "application/json"
}
],
"queryParameters": [],
"bodyDataParameters": [
{
"kind": "required",
"name": "body",
"type": "object",
"description": "",
"schema": [
{
"name": "requests",
"kind": "required",
"type": "array",
"description": "One or more end-date calculations to perform. Must be non-empty.
",
"example": "",
"itemType": "object",
"customType": "object[]",
"schema": [
{
"name": "startDate",
"kind": "required",
"type": "string",
"description": "Subscription start date (ISO 8601, e.g. '2026-01-01').
",
"format": "date"
},
{
"name": "term",
"kind": "required",
"type": "number",
"description": "Term length, expressed in 'termType' units (e.g. 12 with termType 'month' = one year).
"
},
{
"name": "termType",
"kind": "optional",
"type": "string",
"description": "Optional. Dimension the term is expressed in. Case-insensitive (one of: year, month, quarter, semi-annual, week). Defaults to 'month' when omitted.
",
"enum": [
"year",
"month",
"quarter",
"semi-annual",
"week"
]
},
{
"name": "termBasis",
"kind": "optional",
"type": "string<30/360 | eu30/360 | actual/actual | actual/360 | actual/365>",
"description": "Optional. Day-count convention used to measure the period. Case-insensitive. Defaults to 'eu30/360' when omitted. Most subscription products use '30/360', so pass it explicitly unless you specifically want EU 30/360.
",
"enum": [
"30/360",
"eu30/360",
"actual/actual",
"actual/360",
"actual/365"
]
}
]
}
],
"isExpanded": true
}
],
"formDataParameters": [],
"oAuthParameters": [],
"cookieParameters": []
},
"responses": [
{
"statusCode": "200",
"description": "End date(s) calculated successfully.
",
"jsonExample": "",
"isExpanded": true,
"subExamples": [
{
"label": "GENERATED",
"code": "// End date(s) calculated successfully.\n{\n \"results\": [\n {\n \"endDate\": \"\",\n \"termType\": \"\",\n \"termBasis\": \"\"\n }\n ]\n}"
},
{
"label": "twelveMonths",
"code": "// End of the year\n{\n \"results\": [\n {\n \"endDate\": \"2026-12-31\",\n \"termType\": \"Month\",\n \"termBasis\": \"30/360\"\n }\n ]\n}"
}
],
"schema": [
{
"kind": "optional",
"type": "object",
"description": "",
"schema": [
{
"name": "results",
"kind": "optional",
"type": "array",
"description": "Calculated end dates, in the same order as the requests.
",
"example": "",
"itemType": "object",
"customType": "object[]",
"schema": [
{
"name": "endDate",
"kind": "optional",
"type": "string",
"description": "Calculated subscription end date (ISO 8601).
",
"format": "date"
},
{
"name": "termType",
"kind": "optional",
"type": "string",
"description": "Dimension the term was expressed in (e.g. 'Month').
"
},
{
"name": "termBasis",
"kind": "optional",
"type": "string",
"description": "Day-count convention applied.
"
}
]
}
],
"isExpanded": true
}
]
},
{
"statusCode": "400",
"description": "Validation error",
"jsonExample": "",
"isExpanded": true,
"schema": [
{
"kind": "optional",
"type": "object",
"description": "",
"customType": "ValidationError",
"schema": [
{
"name": "status",
"kind": "optional",
"type": "string",
"description": "",
"enum": [
"FAILURE"
]
},
{
"name": "errorCode",
"kind": "optional",
"type": "string",
"description": "Specific validation error code"
},
{
"name": "message",
"kind": "optional",
"type": "string",
"description": "Detailed validation error message"
}
],
"modelRef": "#/components/schemas/ValidationError",
"isExpanded": true
}
]
}
],
"hasXCodeSamples": false,
"examples": {
"languages": [
{
"id": "y71nZMw2kezq-LWMsROCq",
"language": "curl",
"label": "cURL",
"code": "curl --request POST \\\n --url https://api.nue.io/pricing/terms/calculateEndDate \\\n --header 'accept: application/json' \\\n --header 'content-type: application/json' \\\n --data '{\n \"requests\": [\n {\n \"startDate\": \"\",\n \"term\": \"\"\n }\n ]\n }'"
},
{
"id": "2DQM6Ra_s5Idw0e5NoC9X",
"language": "javascript",
"label": "javascript",
"code": "var myHeaders = new Headers();\nmyHeaders.append(\"accept\", \"application/json\");\nmyHeaders.append(\"content-type\", \"application/json\");\n\nvar raw = JSON.stringify({\n \"requests\": [\n {\n \"startDate\": \"\",\n \"term\": \"\"\n }\n ]\n});\n\nvar requestOptions = {\n method: 'POST',\n headers: myHeaders,\n body: raw,\n redirect: 'follow'\n};\n\nfetch(\"https://api.nue.io/pricing/terms/calculateEndDate\", requestOptions)\n .then(response => response.text())\n .then(result => console.log(result))\n .catch(error => console.log('error', error));"
},
{
"id": "QhLsYS3LFmZcq2SWMA8ga",
"language": "ruby",
"label": "Ruby",
"code": "require \"uri\"\nrequire \"json\"\nrequire \"net/http\"\n\nurl = URI(\"https://api.nue.io/pricing/terms/calculateEndDate\")\n\nhttps = Net::HTTP.new(url.host, url.port)\nhttps.use_ssl = true\n\nrequest = Net::HTTP::Post.new(url)\nrequest[\"accept\"] = \"application/json\"\nrequest[\"content-type\"] = \"application/json\"\nrequest.body = JSON.dump({\n \"requests\": [\n {\n \"startDate\": \"\",\n \"term\": \"\"\n }\n ]\n})\n\nresponse = https.request(request)\nputs response.read_body\n"
},
{
"id": "f2OzEJNbLhEKNxTWpyclS",
"language": "python",
"label": "Python",
"code": "import requests\nimport json\n\nurl = \"https://api.nue.io/pricing/terms/calculateEndDate\"\n\npayload = json.dumps({\n \"requests\": [\n {\n \"startDate\": \"\",\n \"term\": \"\"\n }\n ]\n})\nheaders = {\n 'accept': 'application/json',\n 'content-type': 'application/json'\n}\n\nresponse = requests.request(\"POST\", url, headers=headers, data=payload)\n\nprint(response.text)\n"
}
],
"selectedLanguageId": "y71nZMw2kezq-LWMsROCq"
},
"results": {
"languages": [
{
"id": "response-0-200",
"language": "200",
"code": "// End date(s) calculated successfully.\n{\n \"results\": [\n {\n \"endDate\": \"\",\n \"termType\": \"\",\n \"termBasis\": \"\"\n }\n ]\n}",
"subExamples": [
{
"label": "GENERATED",
"code": "// End date(s) calculated successfully.\n{\n \"results\": [\n {\n \"endDate\": \"\",\n \"termType\": \"\",\n \"termBasis\": \"\"\n }\n ]\n}"
},
{
"label": "twelveMonths",
"code": "// End of the year\n{\n \"results\": [\n {\n \"endDate\": \"2026-12-31\",\n \"termType\": \"Month\",\n \"termBasis\": \"30/360\"\n }\n ]\n}"
}
]
},
{
"id": "response-1-400",
"language": "400",
"code": "// Validation error\n{\n \"status\": \"\",\n \"errorCode\": \"\",\n \"message\": \"\"\n}"
}
],
"selectedLanguageId": "response-0-200"
}
},
"children": [
{
"text": ""
}
]
}