For the complete documentation index, see llms.txt.
Run one-sample, paired, or independent two-sample t-tests with Welch or pooled variance, p-value, critical value, confidence interval, and Cohen's d.
One POST adds t-Test Calculator to your app, site, workflow, or agent — formula, validation, edge cases, and docs already handled.
prefer a UI? Open the t-Test Calculator on miniwebtool.com →
POST https://api.miniwebtool.com/v1/tools/t-test-calculator/run
| Field | Type | Req. |
|---|---|---|
test_type
two_sample | paired | one_sample
|
str |
— |
group1
first sample values separated by comma, space, or newline
|
str |
— |
group2
second sample values (two_sample and paired tests)
|
str |
— |
mu
hypothesised mean (one_sample) or hypothesised mean difference
|
float |
— |
equal_variance
no | yes
|
str |
— |
tail
two | left | right
|
str |
— |
alpha
0.05 | 0.01 | 0.10
|
str |
— |
precision
decimal places, 2-10
|
int |
— |
262144 bytes.hash_only{
"request_id": "01K...",
"tool": "t-test-calculator",
"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/t-test-calculator/run \
-H 'Authorization: Bearer mwt_live_YOUR_KEY' \
-H 'Content-Type: application/json' \
-d '{"test_type":"two_sample","group1":"23, 25, 28, 22, 27, 26, 24, 29","group2":"31, 29, 35, 33, 30, 34, 32, 36","tail":"two","alpha":"0.05"}'
import requests
resp = requests.post(
'https://api.miniwebtool.com/v1/tools/t-test-calculator/run',
headers={'Authorization': 'Bearer mwt_live_YOUR_KEY'},
json={'test_type': 'two_sample', 'group1': '23, 25, 28, 22, 27, 26, 24, 29', 'group2': '31, 29, 35, 33, 30, 34, 32, 36', 'tail': 'two', 'alpha': '0.05'},
)
resp.raise_for_status()
data = resp.json()
print(data)
const resp = await fetch(
'https://api.miniwebtool.com/v1/tools/t-test-calculator/run',
{
method: 'POST',
headers: {
'Authorization': 'Bearer mwt_live_YOUR_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({"test_type":"two_sample","group1":"23, 25, 28, 22, 27, 26, 24, 29","group2":"31, 29, 35, 33, 30, 34, 32, 36","tail":"two","alpha":"0.05"}),
}
);
const data = await resp.json();
console.log(data);
<?php
$ch = curl_init('https://api.miniwebtool.com/v1/tools/t-test-calculator/run');
curl_setopt_array($ch, [
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Authorization: Bearer mwt_live_YOUR_KEY',
'Content-Type: application/json',
],
CURLOPT_POSTFIELDS => json_encode([
'test_type' => 'two_sample',
'group1' => '23, 25, 28, 22, 27, 26, 24, 29',
'group2' => '31, 29, 35, 33, 30, 34, 32, 36',
'tail' => 'two',
'alpha' => '0.05'
]),
]);
$resp = curl_exec($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/t-test-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 = {
'test_type' => 'two_sample',
'group1' => '23, 25, 28, 22, 27, 26, 24, 29',
'group2' => '31, 29, 35, 33, 30, 34, 32, 36',
'tail' => 'two',
'alpha' => '0.05'
}.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{}{
"test_type": "two_sample",
"group1": "23, 25, 28, 22, 27, 26, 24, 29",
"group2": "31, 29, 35, 33, 30, 34, 32, 36",
"tail": "two",
"alpha": "0.05",
})
req, _ := http.NewRequest("POST", "https://api.miniwebtool.com/v1/tools/t-test-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/t-test-calculator/run"))
.header("Authorization", "Bearer mwt_live_YOUR_KEY")
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString("{\"test_type\":\"two_sample\",\"group1\":\"23, 25, 28, 22, 27, 26, 24, 29\",\"group2\":\"31, 29, 35, 33, 30, 34, 32, 36\",\"tail\":\"two\",\"alpha\":\"0.05\"}"))
.build();
var resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.body());
https://api.miniwebtool.com/v1/tools/t-test-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.
Run one-sample, paired, or independent two-sample t-tests with Welch or pooled variance, p-value, critical value, confidence interval, and Cohen's d. 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 `t-test-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
(t-test-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=="t-test-calculator")'