sigtap - Crypto Price
https://sigtap-outreach-api.sigtap.workers.dev/tools/crypto-price?from=BTC&to=USDOverview
x402 USDC on Base - no signup, the wallet is the account. Free check: GET https://sigtap-outreach-api.sigtap.workers.dev/preview/tools/crypto-price returns a 200 sample. Paid call in 3 steps: GET https://sigtap-outreach-api.sigtap.workers.dev/tools/crypto-price?from=BTC&to=USD -> 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
$0.0020
Payment Asset
USDC
Payment Network
Base
Category
tools
Provider
sigtap
Source
self-registered
Indexed
2026-09-05 12:55:53
Health
Status
healthy
Latency (p50)
523ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-10-22 15:52:19
Last Healthy
2026-10-22 15:52:19
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-22 15:52:19 | healthy | 402 | 511ms | |
| 2026-10-21 21:17:55 | healthy | 402 | 745ms | |
| 2026-10-21 08:59:11 | healthy | 402 | 527ms | |
| 2026-10-20 23:09:12 | healthy | 402 | 523ms | |
| 2026-10-20 01:51:09 | healthy | 402 | 512ms |