Endpoint · onchainGETapi.seneschal.space /v1/q/base-fee
Single-fact: what does Ethereum mainnet gas cost RIGHT NOW?
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Single-fact: what does Ethereum mainnet gas cost RIGHT NOW? Returns the latest block’s base fee + blob base fee AND the consensus-computed next-block projection (not a guess — the protocol’s own EIP-1559/4844 arithmetic), straight from eth_feeHistory. Fields: {block, base_fee_gwei, blob_base_fee_gwei, gas_used_ratio, next_base_fee_gwei, next_blob_base_fee_gwei}. Bulk per-block history: /v1/premium/fee-history.csv ($0.05, up to 1024 blocks/call).Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
none yet
delivery unknown until someone pays
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URL
https://api.seneschal.space/v1/q/base-fee
Seen
first 35 days ago · last 8 days ago
64 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.705 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.295: 0.065 uncertain ? + 0.230 short ? · 0.095 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| liveness it answered at all |
0.60 | 0.95 | 0.841 | 0.505 | −0.030 | −0.065 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.705 | gap to 1.000 = 0.295 · 0.230 short · 0.065 uncertain | 0.705 | −0.230 | −0.065 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.000 latency p95
+ 0.600 × 0.841 liveness
+ 0.200 × 1.000 price stability
= 0.705 → UNRATED: 56 of 30 paid calls weights 2026.09.6 · 56 samples · seed cap_01M1A59W38154PQE5HXJT5Y88H|2026-09-03T20:40:32.752Z|2026.09.6
Verify it yourself
npx teppi-check https://api.seneschal.space/v1/q/base-feecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59W38154PQE5HXJT5Y88H