# endoflife.date API

> endoflife.date returns software release and support dates as a workflow and API.

endoflife.date, also known as EOL date, returns release and support dates for a software product, operating system, or device. Get support dates needs a product name and optionally a release version; leave the version blank to return all matched releases.

- Page: https://fous.com/tools/endoflife-date
- Handle: `@endoflife-date`
- Category: [Developer tools](https://fous.com/tools/category/developer-tools)
- Source website: https://endoflife.date
- Last verified: Sep 29, 2026

## Methods

### Get support dates

Operation `get_support_dates`, version 1. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted.

Get release and support dates for a software product, operating system, or device. Windows 10 and Windows 11 return only their matching Windows releases; still supported includes extended maintenance when listed.

**Input**

| Field | Type | Required | Example | Description |
|---|---|---|---|---|
| `product` | string | yes | `"Python"` | Product name, such as Windows 10, Python, iPhone, or Ubuntu. |
| `version` | string | no | `"3.9"` | Release version to select, such as 3.9 or 22H2; leave blank for all versions. |

**Input schema**

```json
{
  "type": "object",
  "required": [
    "product"
  ],
  "properties": {
    "product": {
      "type": "string",
      "description": "Product name, such as Windows 10, Python, iPhone, or Ubuntu.",
      "examples": [
        "Python",
        "Windows 10",
        "Ubuntu"
      ]
    },
    "version": {
      "type": "string",
      "default": "",
      "description": "Release version to select, such as 3.9 or 22H2; leave blank for all versions.",
      "examples": [
        "3.9",
        "24.04"
      ]
    }
  },
  "additionalProperties": false,
  "examples": [
    {
      "product": "Python",
      "version": "3.9"
    },
    {
      "product": "Windows 10"
    },
    {
      "product": "Ubuntu",
      "version": "24.04"
    }
  ]
}
```

**Output**

| Field | Type | Example | Description |
|---|---|---|---|
| `versions` | array |  | Matched releases, newest first. Dates are null when unavailable. |
| `versions[].version` | string | `"3.9"` |  |
| `versions[].page_link` | string | `"https://endoflife.date/python"` | Product page for this release. |
| `versions[].release_date` | string or null | `"2020-10-05"` |  |
| `versions[].still_supported` | boolean | `false` |  |
| `versions[].long_term_support` | boolean | `false` |  |
| `versions[].latest_patch_version` | string or null | `"3.9.25"` |  |
| `versions[].end_of_active_support` | string or null | `"2022-05-17"` |  |
| `versions[].end_of_security_updates` | string or null | `"2025-10-31"` |  |
| `product_name` | string | `"Python"` | Name of the matched product. |
| `product_page_link` | string | `"https://endoflife.date/python"` | Public page for this product. |

**Example input**

```json
{
  "product": "Python",
  "version": "3.9"
}
```

**Example output**

```json
{
  "versions": [
    {
      "version": "3.9",
      "page_link": "https://endoflife.date/python",
      "release_date": "2020-10-05",
      "still_supported": false,
      "long_term_support": false,
      "latest_patch_version": "3.9.25",
      "end_of_active_support": "2022-05-17",
      "end_of_security_updates": "2025-10-31"
    }
  ],
  "product_name": "Python",
  "product_page_link": "https://endoflife.date/python"
}
```

## Quick start

Replace `YOUR_API_KEY` with a Fous API key. To create one, open Developers at the bottom of Fous Studio, turn on Developer mode, then go to API keys (https://app.fous.com/keys). Change the values in `input` to run the same tool on new data.

```bash
curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 180 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@endoflife-date",
  "visibility": "public",
  "operation": "get_support_dates",
  "version": 1,
  "input": {
    "product": "Python",
    "version": "3.9"
  },
  "response": {
    "format": "json"
  }
}'
```

```python
# Save as fous.py and run with python3 fous.py. No packages needed.
import json
import urllib.error
import urllib.request

api_key = "YOUR_API_KEY"

body = json.loads("{\n  \"api\": \"@endoflife-date\",\n  \"visibility\": \"public\",\n  \"operation\": \"get_support_dates\",\n  \"version\": 1,\n  \"input\": {\n    \"product\": \"Python\",\n    \"version\": \"3.9\"\n  },\n  \"response\": {\n    \"format\": \"json\"\n  }\n}")
request = urllib.request.Request(
    "https://api.fous.com/v1/query",
    data=json.dumps(body).encode("utf-8"),
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    method="POST",
)
try:
    with urllib.request.urlopen(request, timeout=180) as response:
        result = json.load(response)
except urllib.error.HTTPError as error:
    raise RuntimeError(f"HTTP {error.code}: {error.read().decode('utf-8', errors='replace')}") from error
if result.get("success") is False:
    raise RuntimeError(result.get("error", {}).get("message", "Request failed"))
print(json.dumps(result["data"]["output"], indent=2))
```

```typescript
// Save as fous.mts and run with npx tsx fous.mts.
const apiKey = "YOUR_API_KEY";

const response = await fetch("https://api.fous.com/v1/query", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  signal: AbortSignal.timeout(180_000),
  body: JSON.stringify({
  "api": "@endoflife-date",
  "visibility": "public",
  "operation": "get_support_dates",
  "version": 1,
  "input": {
    "product": "Python",
    "version": "3.9"
  },
  "response": {
    "format": "json"
  }
}),
});
type ApiResult = { success: boolean; data?: { output: unknown }; error?: { message: string } };
const result: ApiResult = await response.json();
if (!response.ok || result.success === false) {
  throw new Error(result.error?.message ?? `HTTP ${response.status}`);
}
if (!result.data) throw new Error("Missing API response data");
console.log(result.data.output);
```

## Use from an AI assistant

Connect this tool to Claude Code, Claude Desktop, Cursor, VS Code, Codex and any MCP client as its own MCP server. Each method is a typed tool whose arguments are the method’s input.

- Server URL: `https://api.fous.com/mcp/tools/endoflife-date`
- Authorization: `Authorization: Bearer <Fous API key>`

**Tools**

- `get_support_dates`: Get support dates. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted.
- `fous_get_run`: the result of a run that was still going, by its `request_id`. Free.

Claude Code:

```bash
claude mcp add --scope user --transport http fous-endoflife-date https://api.fous.com/mcp/tools/endoflife-date --header "Authorization: Bearer ${FOUS_API_KEY:?Set FOUS_API_KEY to your Fous API key}"
```

To give the assistant every tool, connect `https://api.fous.com/mcp`: it finds one with `fous_search_tools` and runs it with `fous_run_tool`. Setup for other clients: https://fous.com/llms-full.txt.

## Use cases

- Check when software releases end active support.
- Find when security updates end for a release.
- Compare support dates across product versions.
- Track the latest patch version for a release.

## FAQ

### Can I run it with my own inputs?

Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant.

### Can I call this endoflife.date tool as an API?

Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back.

### How much does it cost?

Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit.

### Do I need a endoflife.date account?

No. You only need a Fous account.

### How current is the data?

Fous gets the data from endoflife.date when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 29, 2026.

### When does a software release stop receiving security updates?

Use Get support dates with a product and, optionally, a version to see its end of security updates date.

### What is the latest patch version for a release?

Get support dates returns the latest patch version for each matched release.

### Which releases are still supported?

Get support dates returns a still supported value for each matched release.

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