Discover / chainsscope.duckdns.org

fee_estimate

□ No challenge detected

Current network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- useful for an agent about to construct a transaction itself.

x402
Base
Solana
USDC

Listed price: $0.01
Challenge detected: 0 of the last check
Last checked: 14 Oct, 18:06 UTC
In our index since: 14 Oct 2026

Endpoint

curl -i https://chainsscope.duckdns.org/tools/fee-estimate
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/chainsscope.duckdns.org

Recent checks

14 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.14 Oct 2026

All 1 checks

When (UTC)	Result	HTTP	Response
14 Oct, 18:06 UTC	No challenge detected	405	327ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 14 Oct, 18:06 UTC, we detected no payment challenge.

What price is recorded for fee_estimate?

Its listed price is $0.01.

What payment terms does fee_estimate advertise?

The listing advertises x402, Base, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is fee_estimate listed?

In x402 Bazaar. Superstables first indexed it on 14 Oct 2026.

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