Disposable Phone Number Checker API

GET

Catch burner phone numbers before sending an SMS code.

Disposable Phone Number Checker is a phone fraud API that flags temporary, burner and virtual phone numbers published on SMS-receiving sites. Pass a number in E.164 format to check whether it is disposable and see the date it was first seen on those lists.

Try it — live request, no key required

Request

GETapi.apiverve.com/v1/disposablephone?phone=%2B12085813945

Query parameters

phonestring

Verification

Format

No key required to try it. Get a key to use it in your app.

Example

{
  "status": "ok",
  "error": null,
  "data": {
    "phone": "+12085813945",
    "isDisposable": true,
    "firstSeen": "2024-01-30",
    "listedInRange": 12,
    "isRiskyRange": true
  }
}

About the Disposable Phone Number Checker API

The checker matches the number against a database of disposable phone numbers collected from public SMS-receiving services and refreshed daily. Anyone can read the codes sent to those numbers, so a sign-up verified with one proves nothing about the person behind it. Paid plans also count how many listed numbers share the number's 100-number block, which catches fresh burner numbers from ranges the SMS sites already use. Use it to stop fake accounts at registration before you spend money sending an SMS code, and pair it with the Phone Number Validator when you also need the line type and country.

What people use it for

User Registration: Detect and block disposable phone numbers during user registration to prevent fake accounts and improve user quality
Phone Fraud Detection: Identify temporary phone numbers used in fraudulent activities and protect your platform from abuse
SMS Verification: Ensure SMS verification codes are sent to real phone numbers, not temporary ones that can be easily abandoned
Lead Quality: Filter out leads with disposable phone numbers to focus on genuine prospects and improve conversion rates

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON: Default REST response
XML: Markup format
YAML: Human-readable
CSV: Tabular export
GraphQL: Query language
MCP: For AI agents

View all integrations →

How it compares

Side by side with the tools people weigh Disposable Phone Number Checker against — what each one is better at, in plain terms.

APIVerve vs Numverify →

Other ways to use Disposable Phone Number Checker

Same data, same APIVerve account, same credit balance — one key works on all of them.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.on VerveKit Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.on VerveSheets Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.on VerveContext

Questions.

Common questions about the Disposable Phone Number Checker API.

Read the docs →

What would checking 5,000 phone numbers a month cost me?

Starter covers 33,333 checks each month, so 5,000 checks uses under a sixth of your monthly credits. That volume works out to about $0.90 per 1,000 checks, or roughly $0.0009 per call. If you just need to run test checks during setup, the Free plan includes 33 checks every month.

What do paid plans add?

The Free plan returns isDisposable and firstSeen for the exact number. Paid plans add listedInRange, the number of other listed numbers in the same 100-number block, and isRiskyRange, which is true at 3 or more. SMS-receiving sites tend to buy consecutive numbers, so a new number from one of their ranges is flagged before it ever appears on the list.

What format do phone numbers need to be in?

E.164 is preferred: a plus sign, the country code and the subscriber number, like +12085813945. Spaces, dashes and brackets are ignored, and a 00 prefix is read as +. A number in national format, like 07700 900123, also works if you add its country code, as in country=GB.

How often is the disposable number list updated?

The database updates daily to track newly published numbers from online SMS receiving services. Because temporary SMS services regularly swap out inactive numbers and add new ones, daily updates help flag fresh burner numbers used to bypass verifications.

What does the response look like if a number is not disposable?

When a number is not found on any known disposable list, the isDisposable flag returns false and the firstSeen date returns null. The response also confirms the exact phone string evaluated so you can verify what was tested.

Can I use this checker in a commercial user registration flow?

Yes, you can run checks inside commercial onboarding and SMS verification flows on any paid plan. The Free plan is limited to non-commercial testing, and you may not resell or redistribute the underlying phone list.

Request parameters — GET /v1/disposablephone

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

Parameter	Type	Example	Description
`phone`Required	string	`+12085813945`	The phone number to check, in E.164 format (e.g., +12085813945), or in national format together with country phone

Optional

Parameter	Type	Example	Description
`country`Optional	string	`US`	Two-letter ISO country code for a number given in national format (e.g., GB for 07700 900123). Not needed for E.164 numbers

Example request

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curl "https://api.apiverve.com/v1/disposablephone?phone=%2B12085813945&country=US" \
  -H "x-api-key: YOUR_API_KEY"

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Header	When	Value
`x-api-key`Required	Every request	Your API key. Header names are case-insensitive, so `X-API-Key` is the same header.
`Authorization`Alternate	Instead of the above	`Bearer <key>` — for clients that only expose bearer auth. Resolves to the same account and the same billing.

401 is the only auth verdict

A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.

Response — GET /v1/disposablephone

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

Sample response

{
  "status": "ok",
  "error": null,
  "data": {
    "phone": "+12085813945",
    "isDisposable": true,
    "firstSeen": "2024-01-30",
    "listedInRange": 12,
    "isRiskyRange": true
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`phone`	string	`"+12085813945"`	The phone number that was checked
`isDisposable`	boolean	`true`	Whether the phone number is a known disposable/temporary number
`firstSeen`	string	`"2024-01-30"`	Date the number was first seen on a disposable list, null if not listed
`listedInRange`Premium	number	`12`	How many other numbers in the same 100-number block (the number with its last two digits varied) are on the disposable list. SMS-receiving sites buy numbers in runs, so a block with several listed numbers usually belongs to one
`isRiskyRange`Premium	boolean	`true`	True when 3 or more other numbers in the block are listed. About 1 in 5 numbers newly added to the list in September and October 2026 already sat in such a block, so this flags burner numbers before they are listed

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Header	What it carries
`x-api-remaining-credits`	Credits left in the current cycle
`x-api-credits-used`	Credits spent in the current cycle
`x-api-max-credits`	The allowance for the cycle
`x-api-version`	Version of the endpoint that answered

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

Status	Meaning	What to do
`400`	Input was rejected	Read `error`; it names the parameter that has to change.
`401`	Key missing or invalid	Check the header name and the key value.
`403`	Key valid, but not permitted here	A key restriction or an IP allow-list — never a bad key.
`429`	Rate limited, or out of credits	Read `error` to tell them apart, then back off or top up.

What a call costs — 6 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Plan	Per month	Credits	Disposable Phone Number Checker calls	Per 1,000 calls
Free	Free	200	33	Free
Starter	$29.99	200,000	33,333	$0.90
Pro	$99.99	1,000,000	166,666	$0.60
Mega	$299.99	4,000,000	666,666	$0.45

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Compare all pricing tiers →

Call it from cURL — GET /v1/disposablephone

No SDK to install — this is a plain HTTPS call to /v1/disposablephone with your key in the x-api-key header. Swap in a real key and it runs as-is.

cURL

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curl "https://api.apiverve.com/v1/disposablephone" \
  -H "x-api-key: YOUR_API_KEY"

Resources

GitHubapiverve/disposablephone-apiSource, issues and the examples this page is built from.ReferenceDisposable Phone Number Checker API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/disposablephonenpm APIVerve.API.DisposablePhoneNumberCheckerNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Node.js — GET /v1/disposablephone

Install the Node.js SDK, then call the Disposable Phone Number Checker API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — npm

npm install @apiverve/disposablephone

Node.js

const res = await fetch("https://api.apiverve.com/v1/disposablephone", {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);

Resources

npm@apiverve/disposablephoneThe published Node.js client, versioned and signed.GitHubapiverve/disposablephone-apiSource, issues and the examples this page is built from.ReferenceDisposable Phone Number Checker API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

APIVerve.API.DisposablePhoneNumberCheckerNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Python — GET /v1/disposablephone

No SDK to install — this is a plain HTTPS call to /v1/disposablephone with your key in the x-api-key header. Swap in a real key and it runs as-is.

Python

import requests

res = requests.get(
    "https://api.apiverve.com/v1/disposablephone",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])

Resources

Also published for

@apiverve/disposablephonenpm APIVerve.API.DisposablePhoneNumberCheckerNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from C# / .NET — GET /v1/disposablephone

Install the C# / .NET SDK, then call the Disposable Phone Number Checker API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — NuGet

dotnet add package APIVerve.API.DisposablePhoneNumberChecker

C# / .NET

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");

var json = await client.GetStringAsync("https://api.apiverve.com/v1/disposablephone");
Console.WriteLine(json);

Resources

NuGetAPIVerve.API.DisposablePhoneNumberCheckerThe published C# / .NET client, versioned and signed.GitHubapiverve/disposablephone-apiSource, issues and the examples this page is built from.ReferenceDisposable Phone Number Checker API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/disposablephonenpm

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Go — GET /v1/disposablephone

No SDK to install — this is a plain HTTPS call to /v1/disposablephone with your key in the x-api-key header. Swap in a real key and it runs as-is.

req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/disposablephone", nil)
req.Header.Set("x-api-key", "YOUR_API_KEY")

res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Resources

Also published for

@apiverve/disposablephonenpm APIVerve.API.DisposablePhoneNumberCheckerNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from PHP — GET /v1/disposablephone

No SDK to install — this is a plain HTTPS call to /v1/disposablephone with your key in the x-api-key header. Swap in a real key and it runs as-is.

PHP

$ch = curl_init("https://api.apiverve.com/v1/disposablephone");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: YOUR_API_KEY"]);

$response = curl_exec($ch);
echo $response;

Resources

Also published for

@apiverve/disposablephonenpm APIVerve.API.DisposablePhoneNumberCheckerNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Ruby — GET /v1/disposablephone

No SDK to install — this is a plain HTTPS call to /v1/disposablephone with your key in the x-api-key header. Swap in a real key and it runs as-is.

Ruby

require "net/http"

uri = URI("https://api.apiverve.com/v1/disposablephone")
req = Net::HTTP::Get.new(uri)
req["x-api-key"] = "YOUR_API_KEY"

res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.body

Resources

Also published for

@apiverve/disposablephonenpm APIVerve.API.DisposablePhoneNumberCheckerNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

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Disposable Phone Number Checker API

Try it — live request, no key required

About the Disposable Phone Number Checker API

What people use it for

Ways to call it

How it compares

Other ways to use Disposable Phone Number Checker

Questions.

Request parameters — GET /v1/disposablephone

Required

Optional

Authentication

Response — GET /v1/disposablephone

Response fields

Response headers

Errors

What a call costs — 6 credits per call

Call it from cURL — GET /v1/disposablephone

Resources

Also published for

Call it from Node.js — GET /v1/disposablephone

Resources

Also published for

Call it from Python — GET /v1/disposablephone

Resources

Also published for

Call it from C# / .NET — GET /v1/disposablephone

Resources

Also published for

Call it from Go — GET /v1/disposablephone

Resources

Also published for

Call it from PHP — GET /v1/disposablephone

Resources

Also published for

Call it from Ruby — GET /v1/disposablephone

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Disposable Phone Number Checker API

Data Validation

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