Hashtag Generator API

POST

Generate relevant social hashtags from any snippet of text.

Hashtag Generator creates relevant hashtags from any plain text or post caption. Pass in a text snippet to receive an array of suggested social tags, with paid plans able to customize the tag count.

Try it — live request, no key required

Request

POSTapi.apiverve.com/v1/hashtaggenerator

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": {
    "count": 5,
    "hashtags": [
      "#adventure",
      "#awaits",
      "#ready",
      "#embark",
      "#journey"
    ]
  }
}

About the Hashtag Generator API

Hashtag Generator works by analyzing the text provided and generating hashtags. It uses advanced algorithms to generate hashtags based on the text and returns a list of hashtags.

What people use it for

Social Post Scheduling: Publishing platforms scan scheduled captions and suggest matching hashtags to creators before posts go live.
Product Tag Generation: To boost discoverability across social channels, e-commerce stores turn product descriptions into promotional hashtags automatically upon publishing.
Article Cross Posting: When syndicating blog posts, marketing dashboards extract relevant tags from article summaries to include in auto-generated promotional tweets.
Creator Campaign Briefs: Marketing agencies parse campaign creative briefs into a standardized list of social tags for participating influencers to copy.

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 Hashtag Generator

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

Questions.

Common questions about the Hashtag Generator API.

Read the docs →

What would 10,000 hashtag generation requests cost me?

A volume of 10,000 requests uses a small fraction of the Starter plan, which supports up to 100,000 calls each month at 2 credits per call. That works out to about $0.30 per 1,000 calls, or $0.0003 per request. You can also test the endpoint first using the Free plan, which provides 100 calls per month.

Can I choose the number of generated hashtags on the Free plan?

Setting a custom hashtag count requires a paid plan. Both the count parameter and the total count field in the response are premium features available on Starter and higher tiers. Free plan users receive a default list of generated tags without the ability to specify the exact quantity.

How many hashtags can I generate in a single request?

The Free plan returns 5 hashtags; paid plans can request anywhere between 1 and 10 hashtags per call using the count parameter. The endpoint returns an array containing up to your requested number of generated hashtag strings based on the text provided.

What kind of text can I pass into the generator?

You can pass any natural language text, such as social media captions, marketing drafts, blog summaries, or campaign copy. Hashtag Generator analyzes the input string to identify topics and generate relevant hashtags matching your message.

What does the response payload include?

The response returns an array of generated hashtag strings ready to use in post copy. When called on a paid plan, the response also includes a count field confirming the total number of hashtags produced.

Request parameters — POST /v1/hashtaggenerator

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	`Beautiful sunset at the beach with friends enjoying summer vacation`	The text to generate hashtags from

Optional

Parameter	Type	Example	Description
`count`OptionalPremium	number	`5`	Number of hashtags to generate. 1 to 10) default 5

Example request

curl -X POST "https://api.apiverve.com/v1/hashtaggenerator" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Adventure awaits 🌍✈️ Who'\''s ready to embark on a journey of a lifetime? Whether you'\''re exploring exotic landscapes, immersing yourself in vibrant cultures, or simply indulging in delicious cuisines, there'\''s something magical about travel that fills the soul with joy and wonder. Let'\''s wander together and create unforgettable memories! 🌟","count":5}'

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/hashtaggenerator

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": {
    "count": 5,
    "hashtags": [
      "#adventure",
      "#awaits",
      "#ready",
      "#embark",
      "#journey"
    ]
  }
}

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
`count`Premium	number	`5`	Total number of hashtags generated for social content
`hashtags`	array	`[#adventure, ...]`	Array of generated hashtag strings optimized for engagement

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 — 2 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	Hashtag Generator calls	Per 1,000 calls
Free	Free	200	100	Free
Starter	$29.99	200,000	100,000	$0.30
Pro	$99.99	1,000,000	500,000	$0.20
Mega	$299.99	4,000,000	2,000,000	$0.15

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/hashtaggenerator

No SDK to install — this is a plain HTTPS call to /v1/hashtaggenerator 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/hashtaggenerator" \
  -H "x-api-key: YOUR_API_KEY"

Resources

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

Also published for

@apiverve/hashtaggeneratornpm apiverve-hashtaggeneratorPyPI APIVerve.API.HashtagGeneratorNuGet

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/hashtaggenerator

Install the Node.js SDK, then call the Hashtag Generator 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/hashtaggenerator

Node.js

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

Resources

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

Also published for

apiverve-hashtaggeneratorPyPI APIVerve.API.HashtagGeneratorNuGet

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

Call it from Python — POST /v1/hashtaggenerator

Install the Python SDK, then call the Hashtag Generator 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-hashtaggenerator

Python

import requests

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

Resources

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

Also published for

@apiverve/hashtaggeneratornpm APIVerve.API.HashtagGeneratorNuGet

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/hashtaggenerator

Install the C# / .NET SDK, then call the Hashtag Generator 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.HashtagGenerator

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

Resources

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

Also published for

@apiverve/hashtaggeneratornpm apiverve-hashtaggeneratorPyPI

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

Call it from Go — POST /v1/hashtaggenerator

No SDK to install — this is a plain HTTPS call to /v1/hashtaggenerator 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/hashtaggenerator", 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/hashtaggeneratornpm apiverve-hashtaggeneratorPyPI APIVerve.API.HashtagGeneratorNuGet

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

Call it from PHP — POST /v1/hashtaggenerator

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

PHP

$ch = curl_init("https://api.apiverve.com/v1/hashtaggenerator");
curl_setopt($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/hashtaggeneratornpm apiverve-hashtaggeneratorPyPI APIVerve.API.HashtagGeneratorNuGet

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

Call it from Ruby — POST /v1/hashtaggenerator

No SDK to install — this is a plain HTTPS call to /v1/hashtaggenerator 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/hashtaggenerator")
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/hashtaggeneratornpm apiverve-hashtaggeneratorPyPI APIVerve.API.HashtagGeneratorNuGet

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

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Hashtag Generator API

Try it — live request, no key required

About the Hashtag Generator API

What people use it for

Ways to call it

Other ways to use Hashtag Generator

Questions.

Request parameters — POST /v1/hashtaggenerator

Required

Optional

Authentication

Response — POST /v1/hashtaggenerator

Response fields

Response headers

Errors

What a call costs — 2 credits per call

Call it from cURL — POST /v1/hashtaggenerator

Resources

Also published for

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

Resources

Also published for

Call it from Python — POST /v1/hashtaggenerator

Resources

Also published for

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

Resources

Also published for

Call it from Go — POST /v1/hashtaggenerator

Resources

Also published for

Call it from PHP — POST /v1/hashtaggenerator

Resources

Also published for

Call it from Ruby — POST /v1/hashtaggenerator

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Hashtag Generator API

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