api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate

proceed grade B x402 endpoint Base Polygon Arbitrum eip155:480 Solana algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= stellar:pubnet found on CDP Bazaar confidence 0.90
https://api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate

As of 2026-09-14, api.carbon-cashmere.de/v1/kaspa-derivatives/fee-estimate on Base held 97.1% uptime across 105 reliability checks over the past 30 days, with only occasional misses. Responses came back moderate at 415 ms average from a single EU vantage point (so this includes network distance to the endpoint) and it has held its advertised price steady at $0.0300. Its x402-trust grade is B (score 79.2 from a solid sample, tracked for 65 days), so it currently looks safe to use.

Why this verdict?

The latest analysis recorded 2 warnings for this endpoint.

This page is a cached snapshot (computed 4 hours ago, refreshed at least every 24h): it tells you what the verdict is, not why. What each flag says, which wallet or network it concerns and the evidence behind it is the paid trust report, re-probed live at the moment you ask.

A wallet payment page opens first; approve the USDC payment and the full JSON report loads right in your browser. Agents use the x402_trust_score MCP tool or POST /v1/x402-trust directly. Want a taste first? Read a free full sample report.

Advertised descriptionKaspa live fee market: priority/normal/low feerate buckets from the node's own estimator (Toccata RPC). Informational research data — not investment advice.(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
30-day uptime
97.1%
Avg latency (EU)
415 ms
moderate · from EU vantage
Confidence
0.90
full-density score
Advertised price
$0.03
USDC
Price stability
Stable
last 30 days
Probes (30d)
105
full record · up to 48/day

Latency is measured from a single EU vantage point; includes network round-trip distance to the endpoint; a geographically distant endpoint reads slower even when its server is fast, so it is only lightly weighted in the score.

↑ 10 better alternatives available

10 better-scored and cheaper endpoints serving a semantically similar purpose exist.

We don't reveal which ones here. The ranked list (resource URLs, exact scores, prices & similarity, etc...) is one paid call away. Purchase it right here with a browser wallet, no code required:

A wallet payment page opens first; approve the USDC payment and the ranked JSON list loads right in your browser. Agents use the x402_find_alternatives MCP tool or POST /v1/similar directly.

Full observation record ▾
Trust gradeB (score 79.2)
Recommendationproceed
Confidence0.90, full-density (every probe in the 30-day window)
30-day uptime97.1%
Avg latency (EU vantage)415 ms
Probes (30d)105
Advertised price$0.03 USDC
Price stability (30d)stable
Pay on Base$0.03 USDC · to 0xf8b2…F2Ee ↗
Pay on Polygon30000 units of 0x3c49…3359 · to 0xf8b2…F2Ee ↗
Pay on Arbitrum30000 units of 0xaf88…5831 · to 0xf8b2…F2Ee
Pay on eip155:48030000 units of 0x79A0…24d1 · to 0xf8b2…F2Ee
Pay on Solana$0.03 USDC · to GgS891…pCiD ↗
Pay on algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=30000 units of 31566704 · to 5GRGZV…GJGI
Pay on stellar:pubnet300000 units of USDC:G…KZVN · to GDYFWC…O2VP
First seen2026-07-11
Last probed2026-09-14
Statuslisted
Snapshot computed2026-09-14 19:07 UTC
This is the free cached snapshot. Here's what the paid API adds.
  • ✓
    Live probe at decision time:
    We re-check the endpoint the moment you ask (timestamped) and compute the score from all scores up until this moment, instead of this cached snapshot that may be up to 24h old.
  • ✓
    Instant snapshot refresh:
    Every paid call also re-writes this cached snapshot, so the page, badge and card update immediately instead of waiting for the 24h cycle.
  • ✓
    Confidence band, full component breakdown & structured risk flags:
    Exactly why the score is what it is, machine-readable.
  • ✓
    On-chain settlement proof:
    Real USDC volume & distinct-payer count for the payTo wallet: is anyone actually paying it?
  • ✓
    90-day raw history:
    Every listing/price/payTo change and probe result (via POST /v1/x402-history), up to 90 days back.
  • ✓
    The ranked better-scored alternatives:
    The resource URLs, scores & prices we don't reveal above (via POST /v1/similar), if there are better alternatives available.
  • ✓
    Change & liveness alerts:
    Get notified on payTo/price changes, spec regressions or downtime (via POST /v1/watch-endpoint-30d). Connect up to 10 Discord / Slack webhooks or poll regularly with bearer auth. Increases probe-density to every 5 minutes instead of the usual 30 for the watched endpoint.

... Simply give your agents the tools to do all of that for you, with a simple command
$npx -y x402-trust-mcp

Prefer HTTP? Call POST /v1/x402-trust directly (pay-per-call over x402, from $0.005).