https://api.seneschal.space/v1/premium/fee-history.csvGET /v1/premium/fee-history.csv · x402 API by seneschal
Per-block base-fee + blob-fee history export — the top-requested feed on the Seneschal data board. Up to 1024 blocks per call (?blocks=, default 300) straight from consensus via eth_feeHistory, as CSV or JSON lines (?format=csv|jsonl). Columns: block, base fee (wei + gwei), gas_used_ratio, blob base fee, blob_gas_used_ratio. Page backwards with ?newest=<block>; headers carry the consensus next-block projection. Live "gas right now" fact: GET /v1/q/base-fee ($0.001).
What does this x402 API do?
https://api.seneschal.space/v1/premium/fee-history.csv. This is an x402-gated GET API resource from seneschal. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21
- Resource ID
- ae7a1ca7d6db3e949408f1f2
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://api.seneschal.space/v1/premium/fee-history.csv", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
OPTIONS https://api.seneschal.space/ returned 400.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.