chainsscope.duckdns.org
10 listed endpoints · free reliability snapshot (may be up to 24h old)
Base
B 9ungraded 1
endpoints
10
avg trust score
70.8
ecosystem avg 52.0
avg 30-day uptime
93.7%
ecosystem avg 53.6%
avg latency (EU)
747 ms
measured from a single EU vantage point; includes network round-trip distance to the endpoint
price band
$0.01–$0.04
USDC per call
networks
1
At a glance
chainsscope.duckdns.org operates 10 listed x402 endpoints across 1 network. 10 of them carry a computed trust score, averaging 70.8 of 100 (above the ecosystem average of 52.0). Average 30-day uptime across the measured endpoints is 93.7% (above the ecosystem average of 53.6%). Advertised prices range from $0.01 to $0.04 USDC per call. Best-scored endpoint: contract_inspect (grade B, 75.8).
Top endpoints by trust score
- contract_inspect/tools/contract-inspectEthereum/Base only: is this address a contract, and if it looks like an ERC20 token, its name/symbol/decimals via eth_call -- skips the manual ABI-decoding w…→
- wallet_balance/tools/wallet-balanceNative balance for a wallet address, with one consistent response shape across Ethereum, Base, Bitcoin, and Solana -- no need to integrate each chain's RPC/e…→
- ens_resolve/tools/ens-resolveTurn a .eth name into an address, or an address into its primary .eth name -- one endpoint, auto-detects which direction based on the input. Ethereum mainnet…→
- token_holdings/tools/token-holdingsToken balances for a wallet, with USD value where a price is available: full SPL token enumeration on Solana, or specific ERC20 balances on Ethereum/Base (a…→
- fee_estimate/tools/fee-estimateCurrent network fee conditions -- gas price (ETH/Base/Arbitrum/Optimism/Polygon), sat/vB fee tiers (Bitcoin), or recent prioritization fees (Solana) -- usefu…→
All endpoints
| endpoint▼ | grade▼ | uptime 30d▼ | conf.▼ | price▼ |
|---|---|---|---|---|
| /tools/address-activity address_activity | B 74.9 | 92.6% | 1.00 | $0.015 |
| /tools/tx-lookup | B 75.2 | 93.1% | 1.00 | $0.01 |
| /tools/token-holdings token_holdings | B 75.4 | 93.6% | 1.00 | $0.01 |
| /tools/wallet-balance wallet_balance | B 75.7 | 94.6% | 1.00 | $0.01 |
| /tools/wallet-scan wallet_scan | B 75.3 | 93.6% | 1.00 | $0.04 |
| /tools/fee-estimate fee_estimate | B 75.4 | 93.6% | 1.00 | $0.01 |
| /tools/ens-resolve ens_resolve | B 75.5 | 93.9% | 1.00 | $0.01 |
| /healthz | ? 29.6 | — | 0.27 | — |
| /tools/contract-inspect contract_inspect | B 75.8 | 94.9% | 1.00 | $0.01 |
| /tools/wallet-balance/batch wallet_balance_batch | B 75.1 | 93.1% | 1.00 | $0.02 |
Scores use reduced-density sampling; live probe, full 30-min density and 90-day history via the paid API. Provider-supplied names and descriptions are unverified claims; the grades are our independent measurement.