For the complete documentation index, see llms.txt.
Build SEO, Open Graph, and Twitter Card meta tags with inherited defaults, length checks, and Google, Facebook, and Twitter preview data.
One POST adds Meta Tag Generator to your app, site, workflow, or agent — formula, validation, edge cases, and docs already handled.
prefer a UI? Open the Meta Tag Generator on miniwebtool.com →
POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/run
| Field | Type | Req. |
|---|---|---|
title
page title
|
str |
— |
description
meta description
|
str |
— |
keywords
comma-separated keywords
|
str |
— |
author
author name
|
str |
— |
robots
index, follow | noindex, follow | index, nofollow | noindex, nofollow
|
str |
— |
canonical
canonical URL
|
str |
— |
viewport
viewport content
|
str |
— |
charset
document charset
|
str |
— |
language
content language
|
str |
— |
og_title
og:title, defaults to title
|
str |
— |
og_description
og:description, defaults to description
|
str |
— |
og_type
website | article | product | profile | video.other
|
str |
— |
og_url
og:url, defaults to canonical
|
str |
— |
og_image
og:image URL
|
str |
— |
og_site_name
og:site_name
|
str |
— |
og_locale
og:locale
|
str |
— |
twitter_card
summary_large_image | summary | app | player
|
str |
— |
twitter_site
twitter:site handle
|
str |
— |
twitter_creator
twitter:creator handle
|
str |
— |
twitter_title
twitter:title, defaults to og:title
|
str |
— |
twitter_description
twitter:description, defaults to og:description
|
str |
— |
twitter_image
twitter:image, defaults to og:image
|
str |
— |
262144 bytes.no_body_logs{
"request_id": "01K...",
"tool": "meta-tag-generator",
"tool_version": "2026-04-22",
"credits_used": 1,
"result": { ... }
}
1,000 free calls/mo · no card · key arrives by email
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/"}'
import requests
resp = requests.post(
'https://api.miniwebtool.com/v1/tools/meta-tag-generator/run',
headers={'Authorization': 'Bearer mwt_live_YOUR_KEY'},
json={'title': 'Miniwebtool - Free Online Tools', 'description': 'Free online calculators and converters.', 'canonical': 'https://example.com/'},
)
resp.raise_for_status()
data = resp.json()
print(data)
const resp = await fetch(
'https://api.miniwebtool.com/v1/tools/meta-tag-generator/run',
{
method: 'POST',
headers: {
'Authorization': 'Bearer mwt_live_YOUR_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({"title":"Miniwebtool - Free Online Tools","description":"Free online calculators and converters.","canonical":"https://example.com/"}),
}
);
const data = await resp.json();
console.log(data);
<?php
$ch = curl_init('https://api.miniwebtool.com/v1/tools/meta-tag-generator/run');
curl_setopt_array($ch, [
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Authorization: Bearer mwt_live_YOUR_KEY',
'Content-Type: application/json',
],
CURLOPT_POSTFIELDS => json_encode([
'title' => 'Miniwebtool - Free Online Tools',
'description' => 'Free online calculators and converters.',
'canonical' => 'https://example.com/'
]),
]);
$resp = curl_exec($ch);
curl_close($ch);
print_r(json_decode($resp, true));
require 'net/http'
require 'json'
require 'uri'
uri = URI('https://api.miniwebtool.com/v1/tools/meta-tag-generator/run')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = (uri.scheme == 'https')
req = Net::HTTP::Post.new(uri)
req['Authorization'] = 'Bearer mwt_live_YOUR_KEY'
req['Content-Type'] = 'application/json'
req.body = {
'title' => 'Miniwebtool - Free Online Tools',
'description' => 'Free online calculators and converters.',
'canonical' => 'https://example.com/'
}.to_json
resp = http.request(req)
puts JSON.parse(resp.body).inspect
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
)
func main() {
body, _ := json.Marshal(map[string]interface{}{
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"canonical": "https://example.com/",
})
req, _ := http.NewRequest("POST", "https://api.miniwebtool.com/v1/tools/meta-tag-generator/run", bytes.NewReader(body))
req.Header.Set("Authorization", "Bearer mwt_live_YOUR_KEY")
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil { panic(err) }
defer resp.Body.Close()
out, _ := io.ReadAll(resp.Body)
fmt.Println(string(out))
}
import java.net.URI;
import java.net.http.*;
var client = HttpClient.newHttpClient();
var req = HttpRequest.newBuilder()
.uri(URI.create("https://api.miniwebtool.com/v1/tools/meta-tag-generator/run"))
.header("Authorization", "Bearer mwt_live_YOUR_KEY")
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString("{\"title\":\"Miniwebtool - Free Online Tools\",\"description\":\"Free online calculators and converters.\",\"canonical\":\"https://example.com/\"}"))
.build();
var resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.body());
Copy this into Claude Code, Cursor, Codex, Aider or Cline. It carries the endpoint,
the full schema, a sample response, and the credit rules — so the agent wires
meta-tag-generator up correctly without draining your key.
POST /v1/tools/meta-tag-generator/dry-run, which validates
the request and returns the response shape for
0 credits. Only the final confirmation call is billed
(1 credit).
Integrate the MiniWebtool Meta Tag Generator API into this project.
## Your task
1. Read the reference below.
2. Ask me where this belongs in the codebase if it is not obvious.
3. Write the integration in the language and style of the surrounding code:
a small typed client function, errors handled, key read from the
environment (never hard-coded, never committed).
4. Verify with `/dry-run` first, then exactly one live call.
5. Show me the diff and the live result.
## Credit budget — follow these exactly
This API is metered. A live call costs 1 credit; the free tier
includes 1,000 credits per month. Burning them during integration is the
single most common way to waste this key.
1. **Do all wiring against `/dry-run`, which costs 0 credits.** It validates the
payload for real and returns a sample result with the exact response shape.
Iterate there until your request builds and your parsing works.
2. **Make at most ONE live `/run` call** — a single end-to-end confirmation once
dry-run passes. Print the result, then stop.
3. **Never call the API from unit tests, examples, or a retry loop.** Assert
against the sample response captured from `/dry-run` instead.
4. **On 4xx, fix the payload — do not retry.** The error body is RFC 7807
`application/problem+json` and says exactly what is wrong.
5. **On 429, honour `Retry-After`** and back off; do not tighten the loop.
6. **Read `X-MWT-Credits-Remaining`** on every response. If it drops below 50,
stop making live calls and tell me.
7. If the integration needs repeated calls at runtime, **cache by input** — this
tool is deterministic, so the same input always returns the same output.
## The API
**Meta Tag Generator** — Build SEO, Open Graph, and Twitter Card meta tags with inherited defaults, length checks, and Google, Facebook, and Twitter preview data.
- Live endpoint: `POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/run` — costs 1 credit
- Dry run: `POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/dry-run` — costs 0 credits, same auth and validation
- Auth: `Authorization: Bearer <MINIWEBTOOL_API_KEY>`
- Content type: `application/json`
- Tool version: `2026-04-22` (output shape is stable within a major version)
- Full machine-readable spec: `https://api.miniwebtool.com/v1/openapi.json`
### Request body
| field | type | required | notes |
|---|---|---|---|
| `title` | str | no | page title (default `Miniwebtool - Free Online Tools`) |
| `description` | str | no | meta description (default `A large collection of free online calculators and converters for maths, finance, health, and text.`) |
| `keywords` | str | no | comma-separated keywords (default `calculator, converter, online tools`) |
| `author` | str | no | author name |
| `robots` | str | no | one of: index, follow, noindex, follow, index, nofollow, noindex, nofollow — index, follow \| noindex, follow \| index, nofollow \| noindex, nofollow (default `index, follow`) |
| `canonical` | str | no | canonical URL (default `https://example.com/`) |
| `viewport` | str | no | viewport content (default `width=device-width, initial-scale=1`) |
| `charset` | str | no | document charset (default `UTF-8`) |
| `language` | str | no | content language (default `en`) |
| `og_title` | str | no | og:title, defaults to title |
| `og_description` | str | no | og:description, defaults to description |
| `og_type` | str | no | one of: website, article, product, profile, video.other — website \| article \| product \| profile \| video.other (default `website`) |
| `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 (default `en_US`) |
| `twitter_card` | str | no | one of: summary_large_image, summary, app, player — summary_large_image \| summary \| app \| player (default `summary_large_image`) |
| `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 body:
```json
{
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"canonical": "https://example.com/"
}
```
### Response envelope
```json
{
"request_id": "req_01H…",
"tool": "meta-tag-generator",
"tool_version": "2026-04-22",
"credits_used": 1,
"result": {
"html": "<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n<title>Miniwebtool - Free Online Tools</title>\n<meta name=\"description\" content=\"Free online calculators and converters.\">\n<meta name=\"keywords\" content=\"calculator, converter, online tools\">\n<meta name=\"robots\" content=\"index, follow\">\n<meta name=\"language\" content=\"en\">\n<link rel=\"canonical\" href=\"https://example.com/\">\n\n<meta property=\"og:title\" content=\"Miniwebtool - Free Online Tools\">\n<meta property=\"og:type\" content=\"website\">\n<meta property=\"og:description\" content=\"Free online calculators and converters.\">\n<meta property=\"og:url\" content=\"https://example.com/\">\n<meta property=\"og:locale\" content=\"en_US\">\n\n<meta name=\"twitter:card\" content=\"summary_large_image\">\n<meta name=\"twitter:title\" content=\"Miniwebtool - Free Online Tools\">\n<meta name=\"twitter:description\" content=\"Free online calculators and converters.\">",
"seo_tags": [
"<meta charset=\"UTF-8\">",
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">",
"<title>Miniwebtool - Free Online Tools</title>",
"<meta name=\"description\" content=\"Free online calculators and converters.\">",
"<meta name=\"keywords\" content=\"calculator, converter, online tools\">",
"<meta name=\"robots\" content=\"index, follow\">",
"<meta name=\"language\" content=\"en\">",
"<link rel=\"canonical\" href=\"https://example.com/\">"
],
"open_graph_tags": [
"<meta property=\"og:title\" content=\"Miniwebtool - Free Online Tools\">",
"<meta property=\"og:type\" content=\"website\">",
"<meta property=\"og:description\" content=\"Free online calculators and converters.\">",
"<meta property=\"og:url\" content=\"https://example.com/\">",
"<meta property=\"og:locale\" content=\"en_US\">"
],
"twitter_tags": [
"<meta name=\"twitter:card\" content=\"summary_large_image\">",
"<meta name=\"twitter:title\" content=\"Miniwebtool - Free Online Tools\">",
"<meta name=\"twitter:description\" content=\"Free online calculators and converters.\">"
],
"tag_count": 16,
"output_bytes": 924,
"title_length": 31,
"description_length": 39,
"checks": [
{
"check": "title_length",
"passed": true,
"message": "title is 31 characters (ideal 30-60)"
},
{
"check": "description_length",
"passed": false,
"message": "description is 39 characters (ideal 70-160)"
},
{
"check": "canonical_present",
"passed": true,
"message": "canonical URL set"
},
{
"check": "og_image_present",
"passed": false,
"message": "og:image missing"
},
{
"check": "twitter_image_present",
"passed": false,
"message": "twitter:image missing"
},
{
"check": "og_title_length",
"passed": true,
"message": "og:title is 31 characters (max 88)"
}
],
"checks_passed": 3,
"checks_total": 6,
"previews": {
"google": {
"title": "Miniwebtool - Free Online Tools",
"url": "https://example.com/",
"description": "Free online calculators and converters."
},
"facebook": {
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"image": "",
"site_name": ""
},
"twitter": {
"card": "summary_large_image",
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"image": ""
}
}
}
}
```
`result` holds the tool output. Errors come back as
`application/problem+json` with `type`, `title`, `status`, and `detail`.
### Getting a key
If `MINIWEBTOOL_API_KEY` is not already in the environment, stop and ask me for
one — do not sign up, scrape, or guess a key. Free keys: https://api.miniwebtool.com/dashboard/
Integrate the MiniWebtool Meta Tag Generator API into this project.
## Your task
1. Read the reference below.
2. Ask me where this belongs in the codebase if it is not obvious.
3. Write the integration in the language and style of the surrounding code:
a small typed client function, errors handled, key read from the
environment (never hard-coded, never committed).
4. Verify with `/dry-run` first, then exactly one live call.
5. Show me the diff and the live result.
## Credit budget — follow these exactly
This API is metered. A live call costs 1 credit; the free tier
includes 1,000 credits per month. Burning them during integration is the
single most common way to waste this key.
1. **Do all wiring against `/dry-run`, which costs 0 credits.** It validates the
payload for real and returns a sample result with the exact response shape.
Iterate there until your request builds and your parsing works.
2. **Make at most ONE live `/run` call** — a single end-to-end confirmation once
dry-run passes. Print the result, then stop.
3. **Never call the API from unit tests, examples, or a retry loop.** Assert
against the sample response captured from `/dry-run` instead.
4. **On 4xx, fix the payload — do not retry.** The error body is RFC 7807
`application/problem+json` and says exactly what is wrong.
5. **On 429, honour `Retry-After`** and back off; do not tighten the loop.
6. **Read `X-MWT-Credits-Remaining`** on every response. If it drops below 50,
stop making live calls and tell me.
7. If the integration needs repeated calls at runtime, **cache by input** — this
tool is deterministic, so the same input always returns the same output.
## The API
**Meta Tag Generator** — Build SEO, Open Graph, and Twitter Card meta tags with inherited defaults, length checks, and Google, Facebook, and Twitter preview data.
- Live endpoint: `POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/run` — costs 1 credit
- Dry run: `POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/dry-run` — costs 0 credits, same auth and validation
- Auth: `Authorization: Bearer <MINIWEBTOOL_API_KEY>`
- Content type: `application/json`
- Tool version: `2026-04-22` (output shape is stable within a major version)
- Full machine-readable spec: `https://api.miniwebtool.com/v1/openapi.json`
### Request body
| field | type | required | notes |
|---|---|---|---|
| `title` | str | no | page title (default `Miniwebtool - Free Online Tools`) |
| `description` | str | no | meta description (default `A large collection of free online calculators and converters for maths, finance, health, and text.`) |
| `keywords` | str | no | comma-separated keywords (default `calculator, converter, online tools`) |
| `author` | str | no | author name |
| `robots` | str | no | one of: index, follow, noindex, follow, index, nofollow, noindex, nofollow — index, follow \| noindex, follow \| index, nofollow \| noindex, nofollow (default `index, follow`) |
| `canonical` | str | no | canonical URL (default `https://example.com/`) |
| `viewport` | str | no | viewport content (default `width=device-width, initial-scale=1`) |
| `charset` | str | no | document charset (default `UTF-8`) |
| `language` | str | no | content language (default `en`) |
| `og_title` | str | no | og:title, defaults to title |
| `og_description` | str | no | og:description, defaults to description |
| `og_type` | str | no | one of: website, article, product, profile, video.other — website \| article \| product \| profile \| video.other (default `website`) |
| `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 (default `en_US`) |
| `twitter_card` | str | no | one of: summary_large_image, summary, app, player — summary_large_image \| summary \| app \| player (default `summary_large_image`) |
| `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 body:
```json
{
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"canonical": "https://example.com/"
}
```
### Response envelope
```json
{
"request_id": "req_01H…",
"tool": "meta-tag-generator",
"tool_version": "2026-04-22",
"credits_used": 1,
"result": {
"html": "<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n<title>Miniwebtool - Free Online Tools</title>\n<meta name=\"description\" content=\"Free online calculators and converters.\">\n<meta name=\"keywords\" content=\"calculator, converter, online tools\">\n<meta name=\"robots\" content=\"index, follow\">\n<meta name=\"language\" content=\"en\">\n<link rel=\"canonical\" href=\"https://example.com/\">\n\n<meta property=\"og:title\" content=\"Miniwebtool - Free Online Tools\">\n<meta property=\"og:type\" content=\"website\">\n<meta property=\"og:description\" content=\"Free online calculators and converters.\">\n<meta property=\"og:url\" content=\"https://example.com/\">\n<meta property=\"og:locale\" content=\"en_US\">\n\n<meta name=\"twitter:card\" content=\"summary_large_image\">\n<meta name=\"twitter:title\" content=\"Miniwebtool - Free Online Tools\">\n<meta name=\"twitter:description\" content=\"Free online calculators and converters.\">",
"seo_tags": [
"<meta charset=\"UTF-8\">",
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">",
"<title>Miniwebtool - Free Online Tools</title>",
"<meta name=\"description\" content=\"Free online calculators and converters.\">",
"<meta name=\"keywords\" content=\"calculator, converter, online tools\">",
"<meta name=\"robots\" content=\"index, follow\">",
"<meta name=\"language\" content=\"en\">",
"<link rel=\"canonical\" href=\"https://example.com/\">"
],
"open_graph_tags": [
"<meta property=\"og:title\" content=\"Miniwebtool - Free Online Tools\">",
"<meta property=\"og:type\" content=\"website\">",
"<meta property=\"og:description\" content=\"Free online calculators and converters.\">",
"<meta property=\"og:url\" content=\"https://example.com/\">",
"<meta property=\"og:locale\" content=\"en_US\">"
],
"twitter_tags": [
"<meta name=\"twitter:card\" content=\"summary_large_image\">",
"<meta name=\"twitter:title\" content=\"Miniwebtool - Free Online Tools\">",
"<meta name=\"twitter:description\" content=\"Free online calculators and converters.\">"
],
"tag_count": 16,
"output_bytes": 924,
"title_length": 31,
"description_length": 39,
"checks": [
{
"check": "title_length",
"passed": true,
"message": "title is 31 characters (ideal 30-60)"
},
{
"check": "description_length",
"passed": false,
"message": "description is 39 characters (ideal 70-160)"
},
{
"check": "canonical_present",
"passed": true,
"message": "canonical URL set"
},
{
"check": "og_image_present",
"passed": false,
"message": "og:image missing"
},
{
"check": "twitter_image_present",
"passed": false,
"message": "twitter:image missing"
},
{
"check": "og_title_length",
"passed": true,
"message": "og:title is 31 characters (max 88)"
}
],
"checks_passed": 3,
"checks_total": 6,
"previews": {
"google": {
"title": "Miniwebtool - Free Online Tools",
"url": "https://example.com/",
"description": "Free online calculators and converters."
},
"facebook": {
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"image": "",
"site_name": ""
},
"twitter": {
"card": "summary_large_image",
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"image": ""
}
}
}
}
```
`result` holds the tool output. Errors come back as
`application/problem+json` with `type`, `title`, `status`, and `detail`.
### Getting a key
If `MINIWEBTOOL_API_KEY` is not already in the environment, stop and ask me for
one — do not sign up, scrape, or guess a key. Free keys: https://api.miniwebtool.com/dashboard/
---
description: MiniWebtool Meta Tag Generator API — usage and credit budget
globs:
alwaysApply: false
---
# MiniWebtool Meta Tag Generator API
## The API
**Meta Tag Generator** — Build SEO, Open Graph, and Twitter Card meta tags with inherited defaults, length checks, and Google, Facebook, and Twitter preview data.
- Live endpoint: `POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/run` — costs 1 credit
- Dry run: `POST https://api.miniwebtool.com/v1/tools/meta-tag-generator/dry-run` — costs 0 credits, same auth and validation
- Auth: `Authorization: Bearer <MINIWEBTOOL_API_KEY>`
- Content type: `application/json`
- Tool version: `2026-04-22` (output shape is stable within a major version)
- Full machine-readable spec: `https://api.miniwebtool.com/v1/openapi.json`
### Request body
| field | type | required | notes |
|---|---|---|---|
| `title` | str | no | page title (default `Miniwebtool - Free Online Tools`) |
| `description` | str | no | meta description (default `A large collection of free online calculators and converters for maths, finance, health, and text.`) |
| `keywords` | str | no | comma-separated keywords (default `calculator, converter, online tools`) |
| `author` | str | no | author name |
| `robots` | str | no | one of: index, follow, noindex, follow, index, nofollow, noindex, nofollow — index, follow \| noindex, follow \| index, nofollow \| noindex, nofollow (default `index, follow`) |
| `canonical` | str | no | canonical URL (default `https://example.com/`) |
| `viewport` | str | no | viewport content (default `width=device-width, initial-scale=1`) |
| `charset` | str | no | document charset (default `UTF-8`) |
| `language` | str | no | content language (default `en`) |
| `og_title` | str | no | og:title, defaults to title |
| `og_description` | str | no | og:description, defaults to description |
| `og_type` | str | no | one of: website, article, product, profile, video.other — website \| article \| product \| profile \| video.other (default `website`) |
| `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 (default `en_US`) |
| `twitter_card` | str | no | one of: summary_large_image, summary, app, player — summary_large_image \| summary \| app \| player (default `summary_large_image`) |
| `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 body:
```json
{
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"canonical": "https://example.com/"
}
```
### Response envelope
```json
{
"request_id": "req_01H…",
"tool": "meta-tag-generator",
"tool_version": "2026-04-22",
"credits_used": 1,
"result": {
"html": "<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n<title>Miniwebtool - Free Online Tools</title>\n<meta name=\"description\" content=\"Free online calculators and converters.\">\n<meta name=\"keywords\" content=\"calculator, converter, online tools\">\n<meta name=\"robots\" content=\"index, follow\">\n<meta name=\"language\" content=\"en\">\n<link rel=\"canonical\" href=\"https://example.com/\">\n\n<meta property=\"og:title\" content=\"Miniwebtool - Free Online Tools\">\n<meta property=\"og:type\" content=\"website\">\n<meta property=\"og:description\" content=\"Free online calculators and converters.\">\n<meta property=\"og:url\" content=\"https://example.com/\">\n<meta property=\"og:locale\" content=\"en_US\">\n\n<meta name=\"twitter:card\" content=\"summary_large_image\">\n<meta name=\"twitter:title\" content=\"Miniwebtool - Free Online Tools\">\n<meta name=\"twitter:description\" content=\"Free online calculators and converters.\">",
"seo_tags": [
"<meta charset=\"UTF-8\">",
"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">",
"<title>Miniwebtool - Free Online Tools</title>",
"<meta name=\"description\" content=\"Free online calculators and converters.\">",
"<meta name=\"keywords\" content=\"calculator, converter, online tools\">",
"<meta name=\"robots\" content=\"index, follow\">",
"<meta name=\"language\" content=\"en\">",
"<link rel=\"canonical\" href=\"https://example.com/\">"
],
"open_graph_tags": [
"<meta property=\"og:title\" content=\"Miniwebtool - Free Online Tools\">",
"<meta property=\"og:type\" content=\"website\">",
"<meta property=\"og:description\" content=\"Free online calculators and converters.\">",
"<meta property=\"og:url\" content=\"https://example.com/\">",
"<meta property=\"og:locale\" content=\"en_US\">"
],
"twitter_tags": [
"<meta name=\"twitter:card\" content=\"summary_large_image\">",
"<meta name=\"twitter:title\" content=\"Miniwebtool - Free Online Tools\">",
"<meta name=\"twitter:description\" content=\"Free online calculators and converters.\">"
],
"tag_count": 16,
"output_bytes": 924,
"title_length": 31,
"description_length": 39,
"checks": [
{
"check": "title_length",
"passed": true,
"message": "title is 31 characters (ideal 30-60)"
},
{
"check": "description_length",
"passed": false,
"message": "description is 39 characters (ideal 70-160)"
},
{
"check": "canonical_present",
"passed": true,
"message": "canonical URL set"
},
{
"check": "og_image_present",
"passed": false,
"message": "og:image missing"
},
{
"check": "twitter_image_present",
"passed": false,
"message": "twitter:image missing"
},
{
"check": "og_title_length",
"passed": true,
"message": "og:title is 31 characters (max 88)"
}
],
"checks_passed": 3,
"checks_total": 6,
"previews": {
"google": {
"title": "Miniwebtool - Free Online Tools",
"url": "https://example.com/",
"description": "Free online calculators and converters."
},
"facebook": {
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"image": "",
"site_name": ""
},
"twitter": {
"card": "summary_large_image",
"title": "Miniwebtool - Free Online Tools",
"description": "Free online calculators and converters.",
"image": ""
}
}
}
}
```
`result` holds the tool output. Errors come back as
`application/problem+json` with `type`, `title`, `status`, and `detail`.
### Getting a key
If `MINIWEBTOOL_API_KEY` is not already in the environment, stop and ask me for
one — do not sign up, scrape, or guess a key. Free keys: https://api.miniwebtool.com/dashboard/
## Credit budget — follow these exactly
This API is metered. A live call costs 1 credit; the free tier
includes 1,000 credits per month. Burning them during integration is the
single most common way to waste this key.
1. **Do all wiring against `/dry-run`, which costs 0 credits.** It validates the
payload for real and returns a sample result with the exact response shape.
Iterate there until your request builds and your parsing works.
2. **Make at most ONE live `/run` call** — a single end-to-end confirmation once
dry-run passes. Print the result, then stop.
3. **Never call the API from unit tests, examples, or a retry loop.** Assert
against the sample response captured from `/dry-run` instead.
4. **On 4xx, fix the payload — do not retry.** The error body is RFC 7807
`application/problem+json` and says exactly what is wrong.
5. **On 429, honour `Retry-After`** and back off; do not tighten the loop.
6. **Read `X-MWT-Credits-Remaining`** on every response. If it drops below 50,
stop making live calls and tell me.
7. If the integration needs repeated calls at runtime, **cache by input** — this
tool is deterministic, so the same input always returns the same output.
Add the MiniWebtool MCP server to this project, then use the
`meta-tag-generator` tool from it.
Server URL: https://api.miniwebtool.com/v1/mcp
Transport: HTTP (Streamable HTTP / JSON-RPC 2.0)
Auth header: `Authorization: Bearer <MINIWEBTOOL_API_KEY>`
Claude Code:
```bash
claude mcp add --transport http miniwebtool https://api.miniwebtool.com/v1/mcp \
--header "Authorization: Bearer $MINIWEBTOOL_API_KEY"
```
Or add it to the MCP config file your client uses:
```json
{
"mcpServers": {
"miniwebtool": {
"type": "http",
"url": "https://api.miniwebtool.com/v1/mcp",
"headers": { "Authorization": "Bearer ${MINIWEBTOOL_API_KEY}" }
}
}
}
```
Once connected, `tools/list` exposes `meta-tag-generator` with its JSON Schema, so you can
call it directly instead of writing an HTTP client.
## Credit budget — follow these exactly
This API is metered. A live call costs 1 credit; the free tier
includes 1,000 credits per month. Burning them during integration is the
single most common way to waste this key.
1. **Do all wiring against `/dry-run`, which costs 0 credits.** It validates the
payload for real and returns a sample result with the exact response shape.
Iterate there until your request builds and your parsing works.
2. **Make at most ONE live `/run` call** — a single end-to-end confirmation once
dry-run passes. Print the result, then stop.
3. **Never call the API from unit tests, examples, or a retry loop.** Assert
against the sample response captured from `/dry-run` instead.
4. **On 4xx, fix the payload — do not retry.** The error body is RFC 7807
`application/problem+json` and says exactly what is wrong.
5. **On 429, honour `Retry-After`** and back off; do not tighten the loop.
6. **Read `X-MWT-Credits-Remaining`** on every response. If it drops below 50,
stop making live calls and tell me.
7. If the integration needs repeated calls at runtime, **cache by input** — this
tool is deterministic, so the same input always returns the same output.
https://api.miniwebtool.com/v1/tools/meta-tag-generator/run
Authorization: Bearer <key> and Content-Type: application/json. Copy-paste snippets in 7 languages are under Code examples.
{request_id, tool, tool_version, credits_used, result}. The typed output lives in result.
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.
1 credit per successful call. Failed calls (validation errors, 5xx) don't bill.
Required fields: (none). Full schema at /v1/openapi.json.
Yes — same input, same output, forever. Tool version 2026-04-22; output shape is stable within a major version.
Yes. Connect to https://api.miniwebtool.com/v1/mcp over the Model Context Protocol. The agent discovers `meta-tag-generator` with its JSON Schema automatically, so the model can plan while MiniWebtool handles the exact tool result.
JSON with a stable envelope: `{request_id, tool, tool_version, credits_used, result}`. Errors are RFC 7807 `application/problem+json`.
Every endpoint on this site is also exposed via the
Model Context Protocol at
https://api.miniwebtool.com/v1/mcp.
Claude, Cursor, and any MCP-capable agent can discover this tool
(meta-tag-generator)
and its JSON Schema automatically — no client codegen.
# List tools the agent can call
curl -s https://api.miniwebtool.com/v1/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' \
| jq '.result.tools[] | select(.name=="meta-tag-generator")'