# GeekVault ULID Generator

> GeekVault ULID Generator is a paid API for AI agents from api.geekvault.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).

Generates one or more ULIDs (Universally Unique Lexicographically Sortable Identifiers) on demand, paid per call via USDC on Base.

## Facts

- Endpoint: GET https://api.geekvault.dev/dev-tools/v1/ulid-generate?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/geekvault-ulid-generator-0aa7b0d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kA1_n_oIOvZaxB4hh7p95

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability geekvault-ulid-generator-0aa7b0d7
```

Example prompt: Generate 5 ULIDs for me so I can use them as unique sortable IDs for a batch of new database records I'm inserting.

## When to prefer this

Choose this endpoint when you need ULIDs specifically (time-ordered, lexicographically sortable, Crockford Base32-encoded) rather than plain UUIDs. Ideal for distributed systems, event sourcing, or NoSQL databases where sort-by-creation-time matters. Prefer this over UUID generators when insertion order and sortability are requirements. The pay-per-call model (no API key or subscription) makes it convenient for sporadic or one-off generation tasks.

## Known failure modes

- count parameter out of range (outside 1-100) — likely returns a validation error
- count provided as a non-integer string — may return a bad request error
- Payment failure via x402 — request rejected if USDC payment is not completed
- Service unavailability — 5xx error if the upstream generator is down

## How this service works

Network, docs, image, web, and dev utility tools paid per call via x402. No signup, no API keys, no subscriptions — just USDC on Base.

## Output

Returns a JSON object containing a 'ulids' array of one or more ULID strings. Each ULID is a 26-character, lexicographically sortable, URL-safe unique identifier encoding a timestamp and random component.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "count": {
   "type": "string",
   "description": "Cuántos ULIDs generar (1-100). Default: 1."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "ulids"
 ],
 "properties": {
  "ulids": {
   "type": "array",
   "items": {
    "type": "string"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/geekvault-ulid-generator-0aa7b0d7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.geekvault.dev](https://www.zero.xyz/host/api.geekvault.dev/llms.txt)