For the complete documentation index, see llms.txt.

Adjacency Matrix Calculator API

math 1 credit / call v2026-04-22

Build an adjacency matrix from an edge list (or read one back), with degrees, density, connected components, symmetry, and walk counts from matrix powers.

One POST adds Adjacency Matrix Calculator to your app, site, workflow, or agent — formula, validation, edge cases, and docs already handled.

prefer a UI? Open the Adjacency Matrix Calculator on miniwebtool.com →

Start free — get a key → 1,000 credits · no card · 30 seconds

Endpoint

POST · 1cr
POST https://api.miniwebtool.com/v1/tools/adjacency-matrix-calculator/run

Request body

Field Type Req.
input_mode
edges | matrix
str
edges
edge list, e.g. A-B, B-C (undirected) or A->B (directed)
str
matrix
0/1 adjacency matrix, one row per line, for input_mode=matrix
str
labels
optional comma-separated vertex labels for matrix input
str
directed
no | yes
str
walk_length
power k for counting walks of length k
int

Cost & access

  • 1 credit per successful call — failed calls refund.
  • Starts on: Free.
  • Max payload: 262144 bytes.
  • Privacy mode: hash_only
  • Available on: free, starter, pro, business, scale

Response envelope

{
  "request_id": "01K...",
  "tool": "adjacency-matrix-calculator",
  "tool_version": "2026-04-22",
  "credits_used": 1,
  "result": { ... }
}

Try it

Stored only in this browser tab. Playground test key is prefilled and only works on this page. Get a live key →
edges | matrix
edge list, e.g. A-B, B-C (undirected) or A->B (directed)
0/1 adjacency matrix, one row per line, for input_mode=matrix
optional comma-separated vertex labels for matrix input
no | yes
power k for counting walks of length k

Get your own key

1,000 free calls/mo · no card · key arrives by email

One verification click, then your key + a ready-to-run request. No card, no spam.

Code examples

curl -X POST https://api.miniwebtool.com/v1/tools/adjacency-matrix-calculator/run \
  -H 'Authorization: Bearer mwt_live_YOUR_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"input_mode":"edges","edges":"A-B, B-C, C-A, C-D","directed":"no","walk_length":2}'
import requests

resp = requests.post(
    'https://api.miniwebtool.com/v1/tools/adjacency-matrix-calculator/run',
    headers={'Authorization': 'Bearer mwt_live_YOUR_KEY'},
    json={'input_mode': 'edges', 'edges': 'A-B, B-C, C-A, C-D', 'directed': 'no', 'walk_length': 2},
)
resp.raise_for_status()
data = resp.json()
print(data)
const resp = await fetch(
  'https://api.miniwebtool.com/v1/tools/adjacency-matrix-calculator/run',
  {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer mwt_live_YOUR_KEY',
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({"input_mode":"edges","edges":"A-B, B-C, C-A, C-D","directed":"no","walk_length":2}),
  }
);
const data = await resp.json();
console.log(data);
<?php
$ch = curl_init('https://api.miniwebtool.com/v1/tools/adjacency-matrix-calculator/run');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer mwt_live_YOUR_KEY',
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS => json_encode([
    'input_mode' => 'edges',
    'edges' => 'A-B, B-C, C-A, C-D',
    'directed' => 'no',
    'walk_length' => 2
]),
]);
$resp = curl_exec($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/adjacency-matrix-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 = {
  'input_mode' => 'edges',
  'edges' => 'A-B, B-C, C-A, C-D',
  'directed' => 'no',
  'walk_length' => 2
}.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{}{
    "input_mode": "edges",
    "edges": "A-B, B-C, C-A, C-D",
    "directed": "no",
    "walk_length": 2,
  })
  req, _ := http.NewRequest("POST", "https://api.miniwebtool.com/v1/tools/adjacency-matrix-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/adjacency-matrix-calculator/run"))
    .header("Authorization", "Bearer mwt_live_YOUR_KEY")
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString("{\"input_mode\":\"edges\",\"edges\":\"A-B, B-C, C-A, C-D\",\"directed\":\"no\",\"walk_length\":2}"))
    .build();

var resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.body());
how-to call adjacency-matrix-calculator
  1. Get an API key
    Get an API key. Sign up free for a bearer token. 1,000 credits/month, no card.
  2. Assemble the JSON body
    Required fields: . See the Request body table above for the full schema.
  3. POST to https://api.miniwebtool.com/v1/tools/adjacency-matrix-calculator/run
    Headers: Authorization: Bearer <key> and Content-Type: application/json. Copy-paste snippets in 7 languages are under Code examples.
  4. Parse the response
    Envelope: {request_id, tool, tool_version, credits_used, result}. The typed output lives in result.
faq frequently asked
What does the Adjacency Matrix Calculator API do?+

Build an adjacency matrix from an edge list (or read one back), with degrees, density, connected components, symmetry, and walk counts from matrix powers. Use it to add this utility without rebuilding formulas, validation, examples, and documentation.

How much does one call to Adjacency Matrix Calculator cost?+

1 credit per successful call. Failed calls (validation errors, 5xx) don't bill.

What parameters does the Adjacency Matrix Calculator API require?+

Required fields: (none). Full schema at /v1/openapi.json.

Is the Adjacency Matrix Calculator API deterministic?+

Yes — same input, same output, forever. Tool version 2026-04-22; output shape is stable within a major version.

Can an AI agent call the Adjacency Matrix Calculator API?+

Yes. Connect to https://api.miniwebtool.com/v1/mcp over the Model Context Protocol. The agent discovers `adjacency-matrix-calculator` with its JSON Schema automatically, so the model can plan while MiniWebtool handles the exact tool result.

What format does the API return?+

JSON with a stable envelope: `{request_id, tool, tool_version, credits_used, result}`. Errors are RFC 7807 `application/problem+json`.

mcp use from an AI agent

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 (adjacency-matrix-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=="adjacency-matrix-calculator")'
see-also related math tools