sigtap - UUID generator: batch unique ids - UUIDv4, UUIDv7, ULID or nanoid - random ID API
https://sigtap-outreach-api.sigtap.workers.dev/tools/uuidOverview
x402 USDC on Base - no signup, the wallet is the account. Free check: GET https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/uuid returns a 200 sample. Paid call in 3 steps: GET https://sigtap-outreach-api.sigtap.workers.dev/tools/uuid -> 402 challenge (payTo+amount) -> sign and retry with the X-PAYMENT header (@x402/fetch does this) -> 200 + settled on-chain. Catalog + MCP twin: GET /llms.txt on this origin.
Protocol
x402
Price
$0.0005
Payment Asset
USDC
Payment Network
Base
Category
tools
Provider
sigtap
Source
self-registered
Indexed
2026-09-05 12:51:55
Health
Status
healthy
Latency (p50)
627ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-09-17 14:22:33
Last Healthy
2026-09-17 14:22:33
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-17 14:22:33 | healthy | 402 | 767ms | |
| 2026-09-17 02:52:59 | healthy | 402 | 521ms | |
| 2026-09-16 15:14:28 | healthy | 402 | 604ms | |
| 2026-09-16 07:48:44 | healthy | 402 | 525ms | |
| 2026-09-15 21:36:59 | healthy | 402 | 6035ms | |
| 2026-09-15 14:00:20 | healthy | 402 | 627ms | |
| 2026-09-15 09:04:16 | healthy | 402 | 1084ms | |
| 2026-09-14 23:42:44 | healthy | 402 | 587ms |