api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages
x402 endpoint · grade B · score 79.9 · confidence 0.47
As of 2026-06-30, api.carbon-cashmere.de/v1/btc-derivatives/coinbase-messages on Base held a flawless 100.0% uptime across 9 reliability checks over the past 30 days. Responses came back sluggish at 671 ms median and it has held its advertised price steady at $0.0200. Its x402-trust grade is B (score 79.9 from a moderate sample, tracked for 18 days), so it warrants caution before relying on it.
| Trust grade | B (score 79.9) |
| Recommendation | caution |
| Confidence | 0.47 — free tier, reduced density (every 6th probe) |
| 30-day uptime | 100.0% |
| Median latency | 671 ms |
| Probes (30d, sampled) | 9 |
| Advertised price | $0.02 USDC |
| Price stability (30d) | stable |
| Network | eip155:8453 |
| First seen | 2026-06-12 |
| Last probed | 2026-06-30 |
| Status | listed |
| Snapshot computed | 2026-06-30 10:50 UTC |
Need more than the free snapshot? The paid API adds a live probe at decision time (with timestamp), full 30-minute probe density & confidence, 90-day history, on-chain settlement correlation, and watch/alerting.
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POST /v1/x402-trust · POST /v1/x402-history · free MCP: npx -y x402-trust-mcp
Other endpoints from api.carbon-cashmere.de
- /v1/btc-derivatives/coin-days-destroyed
- /v1/kaspa-derivatives/mempool-pulse
- /v1/subtensor-derivatives/event-stream
- /v1/subtensor-derivatives/registration-pulse
- /v1/bittensor-derivatives/registration-cost-history
- /v1/btc-derivatives/ordinals-flow
- /v1/kaspa-derivatives/dag-state
- /v1/bittensor-derivatives/subnets-all
- /v1/kaspa-derivatives/diversity
- /v1/kaspa-derivatives/recent-blocks