Cuid Generator API

GET

Create sortable, collision-resistant IDs for distributed data.

Cuid Generator creates collision-resistant unique identifiers (CUIDs) on demand for distributed applications. Pass an optional count to receive an array of unique ID strings, with paid plans adding structural format and sortability details.

Try it — live request, no key required

Request

GETapi.apiverve.com/v1/cuidgenerator

Verification

Format

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

Example

{
  "status": "ok",
  "error": null,
  "data": {
    "cuids": [
      "cmj95ed27000000145v116use",
      "cmj95ed2700010014uuounuyc",
      "cmj95ed27000200147pwbz35y",
      "cmj95ed27000300142h9ivqrz",
      "cmj95ed27000400149ingh73n",
      "cmj95ed2700050014mg9alsah",
      "cmj95ed27000600149utx0fy3",
      "cmj95ed270007001467kspfhp",
      "cmj95ed2700080014n7ykgwxf",
      "cmj95ed2700090014rrnfehcn"
    ],
    "count": 10,
    "format": "c + timestamp + counter + fingerprint + random",
    "collision_resistant": true,
    "sortable": true
  }
}

About the Cuid Generator API

Cuid Generator works by combining multiple components: a timestamp for sorting, a counter for same-millisecond uniqueness, a process fingerprint for distributed systems, and random data for collision resistance.

What people use it for

Distributed Databases: Generate safe unique keys across distributed database systems and shards
Horizontal Scaling: Create identifiers that work reliably across horizontally scaled applications
Event Sourcing: Generate sortable event identifiers for event sourcing and CQRS patterns
Multi-tenant Systems: Create unique identifiers across multiple tenants and isolated environments

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 Cuid 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 Cuid Generator API.

Read the docs →

How many CUID generation requests does the Free plan cover?

The Free plan covers 100 requests each month. Because each call costs 2 credits, your 200 monthly free credits cover 100 calls. If you need more volume, the Starter plan covers up to 100,000 calls per month, which works out to about $0.30 per 1,000 calls.

Are format details and sortability flags included on the Free plan?

The Free plan provides limited access to metadata. Basic responses return the generated identifier strings and the count, while metadata fields describing component format, collision resistance guarantees, and sortability require a paid plan.

Can I generate multiple CUIDs in a single call?

Yes. You can use the count parameter to specify the exact number of identifiers you need in one request. The endpoint returns the generated CUIDs in a single response array.

What components ensure the generated CUIDs do not collide?

Each identifier combines four separate components: a timestamp for sorting, a counter for same-millisecond generation, a process fingerprint for distributed systems, and random data for collision resistance.

Are the generated CUIDs sortable in distributed databases?

Yes. Because each identifier includes a timestamp component, CUIDs are naturally sortable. This makes them optimized for sequential lookup performance, event sourcing, and horizontal scaling across distributed systems.

Request parameters — GET /v1/cuidgenerator

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.

Optional

Parameter	Type	Example	Description
`count`Optional	integer	`10`	Number of Cuids to generate default 1 · range 1-100

Example request

1
2

curl "https://api.apiverve.com/v1/cuidgenerator?count=10" \
  -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/cuidgenerator

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": {
    "cuids": [
      "cmj95ed27000000145v116use",
      "cmj95ed2700010014uuounuyc",
      "cmj95ed27000200147pwbz35y",
      "cmj95ed27000300142h9ivqrz",
      "cmj95ed27000400149ingh73n",
      "cmj95ed2700050014mg9alsah",
      "cmj95ed27000600149utx0fy3",
      "cmj95ed270007001467kspfhp",
      "cmj95ed2700080014n7ykgwxf",
      "cmj95ed2700090014rrnfehcn"
    ],
    "count": 10,
    "format": "c + timestamp + counter + fingerprint + random",
    "collision_resistant": true,
    "sortable": 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
`cuids`	array	`[cmj95ed27000000145v116use, ...]`	Array of generated collision-resistant unique identifier strings
`count`	number	`10`	Total count of CUIDs generated in this request
`format`Premium	string	`"c + timestamp + counter + fingerprint + random"`	Description of CUID component composition and structure format
`collision_resistant`Premium	boolean	`true`	Indicates whether generated CUIDs provide collision resistance guarantee
`sortable`Premium	boolean	`true`	Indicates whether CUIDs are naturally sortable by timestamp component

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	Cuid 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 — GET /v1/cuidgenerator

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

Resources

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

Also published for

@apiverve/cuidgeneratornpm APIVerve.API.CuidGeneratorNuGet

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/cuidgenerator

Install the Node.js SDK, then call the Cuid 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/cuidgenerator

Node.js

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

Resources

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

Also published for

APIVerve.API.CuidGeneratorNuGet

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

Call it from Python — GET /v1/cuidgenerator

No SDK to install — this is a plain HTTPS call to /v1/cuidgenerator 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/cuidgenerator",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])

Resources

Also published for

@apiverve/cuidgeneratornpm APIVerve.API.CuidGeneratorNuGet

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/cuidgenerator

Install the C# / .NET SDK, then call the Cuid 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.CuidGenerator

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

Resources

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

Also published for

@apiverve/cuidgeneratornpm

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

Call it from Go — GET /v1/cuidgenerator

No SDK to install — this is a plain HTTPS call to /v1/cuidgenerator 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/cuidgenerator", 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/cuidgeneratornpm APIVerve.API.CuidGeneratorNuGet

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

Call it from PHP — GET /v1/cuidgenerator

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

PHP

$ch = curl_init("https://api.apiverve.com/v1/cuidgenerator");
curl_setopt($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/cuidgeneratornpm APIVerve.API.CuidGeneratorNuGet

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

Call it from Ruby — GET /v1/cuidgenerator

No SDK to install — this is a plain HTTPS call to /v1/cuidgenerator 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/cuidgenerator")
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/cuidgeneratornpm APIVerve.API.CuidGeneratorNuGet

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

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Cuid Generator API

Try it — live request, no key required

About the Cuid Generator API

What people use it for

Ways to call it

Other ways to use Cuid Generator

Questions.

Request parameters — GET /v1/cuidgenerator

Optional

Authentication

Response — GET /v1/cuidgenerator

Response fields

Response headers

Errors

What a call costs — 2 credits per call

Call it from cURL — GET /v1/cuidgenerator

Resources

Also published for

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

Resources

Also published for

Call it from Python — GET /v1/cuidgenerator

Resources

Also published for

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

Resources

Also published for

Call it from Go — GET /v1/cuidgenerator

Resources

Also published for

Call it from PHP — GET /v1/cuidgenerator

Resources

Also published for

Call it from Ruby — GET /v1/cuidgenerator

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Cuid Generator API

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