Spam Detector API

POST

Catch spam in submitted text before it goes live.

Spam Detector evaluates text submissions to determine whether content is likely spam. Pass a message body and an optional sender email to check for spam patterns, with paid plans adding IP blocklist and disposable email checks.

Try it — live request, no key required

Request

POSTapi.apiverve.com/v1/spamdetector

Body

textstring

Verification

Format

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

Example

{
  "status": "ok",
  "error": null,
  "data": {
    "likelySpam": true,
    "isDisposableEmail": false,
    "isIPBlacklisted": false,
    "ipDetails": {
      "country": "IN",
      "region": "DL"
    },
    "parsed": true
  }
}

About the Spam Detector API

Spam Detector works by analyzing the text provided and detecting if it is spam. It uses advanced algorithms to analyze the text and return the likelihood of spam.

What people use it for

Forum Comment Screening: Community platforms evaluate incoming forum posts and blog comments to hold suspected spam for moderator review before it appears publicly.
Contact Form Filtering: When visitors submit inquiry forms, lead capture systems check the message text and sender email to drop junk leads automatically.
Chat Message Moderation: Flag suspicious direct messages in real time to stop promotional bots from spamming newly registered members.
Job Listing Verification: To prevent affiliate link abuse, job boards screen incoming vacancy descriptions before listing them in search results.

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 →

Other ways to use Spam Detector

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 Spam Detector API.

Read the docs →

How many messages can I screen for spam on the Free plan?

The Free plan includes 20 checks per month at 10 credits per call. For higher volumes, the Starter plan covers 20,000 checks each month, which works out to about $1.50 per 1,000 calls.

Can I check for disposable emails and blacklisted IPs on the Free plan?

No, disposable email detection and IP blocklist lookups require a paid plan. Upgrading to Starter or above also unlocks sender country and region data, along with the ability to submit an IP address for inspection.

Do I have to provide an email or IP address with every text check?

No, only the text input is required to evaluate a submission. Adding an email address is optional on every plan; adding an IP address requires a paid plan, giving you additional signals by checking sender details against spam databases.

Can I pass an IP address to the check if I am on the Free plan?

The IP parameter is restricted to paid subscriptions. If you are on the Free plan, you can only analyze the message body and evaluate an optional email address.

What kinds of text submissions can I analyze?

You can send any string of text where spam may appear, including forum replies, contact form messages, product reviews, and user bios. The service evaluates the content and indicates whether it is likely spam.

Request parameters — POST /v1/spamdetector

Sent as JSON in the request body. 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
`text`Required	string	`Congratulations! You have won a free iPhone. Click here to claim your prize now!`	The text to detect spam in length 0-50000

Optional

Parameter	Type	Example	Description
`email`Optional	string	`[email protected]`	The email address to validate against the spam database. This is optional email
`ip`OptionalPremium	string	`192.168.1.1`	The IP address to validate against the spam database. This is optional ip

Example request

curl -X POST "https://api.apiverve.com/v1/spamdetector" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Can you please spare some change?! Desperate!!! Send cash","email":"[email protected]","ip":"122.180.184.182"}'

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.
`content-type`Required	POST body	`application/json`

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 — POST /v1/spamdetector

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": {
    "likelySpam": true,
    "isDisposableEmail": false,
    "isIPBlacklisted": false,
    "ipDetails": {
      "country": "IN",
      "region": "DL"
    },
    "parsed": 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
`likelySpam`	boolean	`true`	Indicates whether the text is likely spam
`isDisposableEmail`Premium	boolean	`false`	Indicates if email address uses disposable email service
`isIPBlacklisted`Premium	boolean	`false`	Indicates if IP address is on malicious blocklist
`ipDetails`	object	`{...}`	Geolocation of the supplied IP address, or null when no IP was given or it could not be located
`country`Premium	string	`"IN"`	Country code where IP address is geographically located
`region`Premium	string	`"DL"`	Region or state where IP address is located
`parsed`	boolean	`true`	Indicates whether input data was successfully parsed

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 — 10 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	Spam Detector calls	Per 1,000 calls
Free	Free	200	20	Free
Starter	$29.99	200,000	20,000	$1.50
Pro	$99.99	1,000,000	100,000	$1.00
Mega	$299.99	4,000,000	400,000	$0.75

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 — POST /v1/spamdetector

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

cURL

1
2

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

Resources

GitHubapiverve/spamdetector-apiSource, issues and the examples this page is built from.ReferenceSpam Detector API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/spamdetectornpm apiverve-spamdetectorPyPI APIVerve.API.SpamDetectorNuGet

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

Call it from Node.js — POST /v1/spamdetector

Install the Node.js SDK, then call the Spam Detector 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/spamdetector

Node.js

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

Resources

npm@apiverve/spamdetectorThe published Node.js client, versioned and signed.GitHubapiverve/spamdetector-apiSource, issues and the examples this page is built from.ReferenceSpam Detector API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

apiverve-spamdetectorPyPI APIVerve.API.SpamDetectorNuGet

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

Call it from Python — POST /v1/spamdetector

Install the Python SDK, then call the Spam Detector API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — PyPI

pip install apiverve-spamdetector

Python

import requests

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

Resources

PyPIapiverve-spamdetectorThe published Python client, versioned and signed.GitHubapiverve/spamdetector-apiSource, issues and the examples this page is built from.ReferenceSpam Detector API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/spamdetectornpm APIVerve.API.SpamDetectorNuGet

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

Call it from C# / .NET — POST /v1/spamdetector

Install the C# / .NET SDK, then call the Spam Detector 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.SpamDetector

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/spamdetector");
Console.WriteLine(json);

Resources

NuGetAPIVerve.API.SpamDetectorThe published C# / .NET client, versioned and signed.GitHubapiverve/spamdetector-apiSource, issues and the examples this page is built from.ReferenceSpam Detector API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/spamdetectornpm apiverve-spamdetectorPyPI

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

Call it from Go — POST /v1/spamdetector

No SDK to install — this is a plain HTTPS call to /v1/spamdetector 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/spamdetector", 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/spamdetectornpm apiverve-spamdetectorPyPI APIVerve.API.SpamDetectorNuGet

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

Call it from PHP — POST /v1/spamdetector

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

PHP

$ch = curl_init("https://api.apiverve.com/v1/spamdetector");
curl_setopt($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/spamdetectornpm apiverve-spamdetectorPyPI APIVerve.API.SpamDetectorNuGet

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

Call it from Ruby — POST /v1/spamdetector

No SDK to install — this is a plain HTTPS call to /v1/spamdetector 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/spamdetector")
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/spamdetectornpm apiverve-spamdetectorPyPI APIVerve.API.SpamDetectorNuGet

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

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Spam Detector API

Try it — live request, no key required

About the Spam Detector API

What people use it for

Ways to call it

Other ways to use Spam Detector

Questions.

Request parameters — POST /v1/spamdetector

Required

Optional

Authentication

Response — POST /v1/spamdetector

Response fields

Response headers

Errors

What a call costs — 10 credits per call

Call it from cURL — POST /v1/spamdetector

Resources

Also published for

Call it from Node.js — POST /v1/spamdetector

Resources

Also published for

Call it from Python — POST /v1/spamdetector

Resources

Also published for

Call it from C# / .NET — POST /v1/spamdetector

Resources

Also published for

Call it from Go — POST /v1/spamdetector

Resources

Also published for

Call it from PHP — POST /v1/spamdetector

Resources

Also published for

Call it from Ruby — POST /v1/spamdetector

Resources

Also published for

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Changelog — Spam Detector API

Data Validation

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