For the complete documentation index, see llms.txt.
Calculate LC/RLC resonant frequency, inductance, capacitance, impedance, Q factor, and bandwidth.
Use this endpoint when your app or AI agent needs exact JSON instead of spending LLM tokens on well-defined utility work.
Prefer the browser version? Open the Resonant Frequency Calculator on miniwebtool.com.
POST https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/run
| Field | Type | Req. |
|---|---|---|
solve_for
freq | inductance | capacitance
|
str |
— |
circuit_type
series | parallel
|
str |
— |
inductance
|
float | None |
— |
capacitance
|
float | None |
— |
resistance
|
float | None |
— |
frequency
|
float | None |
— |
l_unit
h | mh | uh | nh
|
str |
— |
c_unit
f | mf | uf | nf | pf
|
str |
— |
r_unit
ohm | kohm | mohm
|
str |
— |
f_unit
hz | khz | mhz | ghz
|
str |
— |
hash_only{
"request_id": "01K...",
"tool": "resonant-frequency-calculator",
"tool_version": "2026-04-22",
"credits_used": 1,
"result": { ... }
}
curl -X POST https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/run \
-H 'Authorization: Bearer mwt_live_YOUR_KEY' \
-H 'Content-Type: application/json' \
-d '{"solve_for":"freq","circuit_type":"series","inductance":100,"capacitance":100,"l_unit":"uh","c_unit":"pf","r_unit":"ohm","f_unit":"mhz"}'
import requests
resp = requests.post(
'https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/run',
headers={'Authorization': 'Bearer mwt_live_YOUR_KEY'},
json={'solve_for': 'freq', 'circuit_type': 'series', 'inductance': 100, 'capacitance': 100, 'l_unit': 'uh', 'c_unit': 'pf', 'r_unit': 'ohm', 'f_unit': 'mhz'},
)
resp.raise_for_status()
print(resp.json())
const resp = await fetch(
'https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/run',
{
method: 'POST',
headers: {
'Authorization': 'Bearer mwt_live_YOUR_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({"solve_for":"freq","circuit_type":"series","inductance":100,"capacitance":100,"l_unit":"uh","c_unit":"pf","r_unit":"ohm","f_unit":"mhz"}),
}
);
const data = await resp.json();
console.log(data);
<?php
$ch = curl_init('https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/run');
curl_setopt_array($ch, [
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Authorization: Bearer mwt_live_YOUR_KEY',
'Content-Type: application/json',
],
CURLOPT_POSTFIELDS => json_encode([
'solve_for' => 'freq',
'circuit_type' => 'series',
'inductance' => 100,
'capacitance' => 100,
'l_unit' => 'uh',
'c_unit' => 'pf',
'r_unit' => 'ohm',
'f_unit' => 'mhz'
]),
]);
$resp = curl_exec($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/resonant-frequency-calculator/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 = {
'solve_for' => 'freq',
'circuit_type' => 'series',
'inductance' => 100,
'capacitance' => 100,
'l_unit' => 'uh',
'c_unit' => 'pf',
'r_unit' => 'ohm',
'f_unit' => 'mhz'
}.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{}{
"solve_for": "freq",
"circuit_type": "series",
"inductance": 100,
"capacitance": 100,
"l_unit": "uh",
"c_unit": "pf",
"r_unit": "ohm",
"f_unit": "mhz",
})
req, _ := http.NewRequest("POST", "https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/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/resonant-frequency-calculator/run"))
.header("Authorization", "Bearer mwt_live_YOUR_KEY")
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString("{\"solve_for\":\"freq\",\"circuit_type\":\"series\",\"inductance\":100,\"capacitance\":100,\"l_unit\":\"uh\",\"c_unit\":\"pf\",\"r_unit\":\"ohm\",\"f_unit\":\"mhz\"}"))
.build();
var resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.body());
https://api.miniwebtool.com/v1/tools/resonant-frequency-calculator/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.
Calculate LC/RLC resonant frequency, inductance, capacitance, impedance, Q factor, and bandwidth. Use it when you need exact JSON instead of asking an LLM to recreate well-defined utility logic.
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 `resonant-frequency-calculator` 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
(resonant-frequency-calculator)
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=="resonant-frequency-calculator")'