# Meta Tag Generator API

> For the complete documentation index, see [llms.txt](/llms.txt).

Build SEO, Open Graph, and Twitter Card meta tags with inherited defaults, length checks, and Google, Facebook, and Twitter preview data.

Use this endpoint to add the tool to your app, site, workflow, or agent without rebuilding formulas, validation, examples, and docs.

- Slug: `meta-tag-generator`
- Category: `webmaster`
- Version: `2026-04-22`
- Credits per successful call: 1
- Starts on: free
- Max payload: 262144 bytes
- Privacy mode: `no_body_logs`
- Available on: free, starter, pro, business, scale
- Browser tool: https://miniwebtool.com/meta-tag-generator/

## Endpoint

`POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/run`

## Request body

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `title` | `str` | no | page title |
| `description` | `str` | no | meta description |
| `keywords` | `str` | no | comma-separated keywords |
| `author` | `str` | no | author name |
| `robots` | `str` | no | index, follow | noindex, follow | index, nofollow | noindex, nofollow Choices: index, follow, noindex, follow, index, nofollow, noindex, nofollow |
| `canonical` | `str` | no | canonical URL |
| `viewport` | `str` | no | viewport content |
| `charset` | `str` | no | document charset |
| `language` | `str` | no | content language |
| `og_title` | `str` | no | og:title, defaults to title |
| `og_description` | `str` | no | og:description, defaults to description |
| `og_type` | `str` | no | website | article | product | profile | video.other Choices: website, article, product, profile, video.other |
| `og_url` | `str` | no | og:url, defaults to canonical |
| `og_image` | `str` | no | og:image URL |
| `og_site_name` | `str` | no | og:site_name |
| `og_locale` | `str` | no | og:locale |
| `twitter_card` | `str` | no | summary_large_image | summary | app | player Choices: summary_large_image, summary, app, player |
| `twitter_site` | `str` | no | twitter:site handle |
| `twitter_creator` | `str` | no | twitter:creator handle |
| `twitter_title` | `str` | no | twitter:title, defaults to og:title |
| `twitter_description` | `str` | no | twitter:description, defaults to og:description |
| `twitter_image` | `str` | no | twitter:image, defaults to og:image |

## Example request

```json
{
  "title": "Miniwebtool - Free Online Tools",
  "description": "Free online calculators and converters.",
  "canonical": "https://example.com/"
}
```

## cURL

```bash
curl -X POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/run \
  -H 'Authorization: Bearer mwt_live_YOUR_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"title":"Miniwebtool - Free Online Tools","description":"Free online calculators and converters.","canonical":"https://example.com/"}'
```

## Response envelope

```json
{
  "request_id": "01K...",
  "tool": "meta-tag-generator",
  "tool_version": "2026-04-22",
  "credits_used": 1,
  "result": {}
}
```

## Errors

Errors are RFC 7807 `application/problem+json`. Branch on `code`, not `title`.

## MCP

Agents can discover and call this tool through `https://api.miniwebtool.com/mcp` or `https://api.miniwebtool.com/v1/mcp` using MCP `tools/list` and `tools/call`.

## Frequently asked

### What does the Meta Tag Generator API do?

Build SEO, Open Graph, and Twitter Card meta tags with inherited defaults, length checks, and Google, Facebook, and Twitter preview data. Use it to add this utility without rebuilding formulas, validation, examples, and documentation.

### How much does one call cost?

1 credit per successful call. Failed calls do not bill.

### What parameters are required?

Required fields: (none). Full schema at `https://api.miniwebtool.com/v1/openapi.json`.

### Is this deterministic?

Yes. Same input, same output. Tool version: 2026-04-22.