api.basefeed.io
- This looks like gas price data, which is available free from the chain's own base fee, a free read. A paid call buys packaging or convenience, not exclusive data, so confirm you need it before paying.
Grades
No purchase-based grade yet. Everything below was measured, by paying this seller or by sweeping the chain, and none of it is editorial.
Accuracy against a primary source
- accurate Gas price (Base): returned 0.006, off by +0.001 gwei against Base chain latest block · $0.005/call · tx
Measured 2026-08-17 by paying this seller and comparing the number it returned with a source it cannot resell. A dated sample, not a live guarantee. Full corpus at /categories.
Did it deliver what it promised?
3 of 3 endpoints we paid returned everything their own published schema promised.
- delivered returned all 3 promised fields
/v1/ping· 2,376ms · 3 bonus field(s)Real response shape
{ "ok": "boolean", "pong": "boolean", "ts": "number", "network": "string", "tier": "string", "cogs_usd": "integer" }Types only, verified from a real paid call. Values discarded.
- delivered returned all 3 promised fields
/v1/base/gas· 2,811ms · 7 bonus field(s)Real response shape
{ "ok": "string", "as_of": "string", "tier": "string", "cogs_usd": "string", "latency_ms": "string", "error": "string", "chain": "string", "gas_price_wei": "string", "gas_price_gwei": "string", "rpc": "string" }Types only, verified from a real paid call. Values discarded.
- delivered returned all 4 promised fields
/v1/base/yields· 2,935ms · 7 bonus field(s)Real response shape
{ "ok": "string", "as_of": "string", "chain": "string", "source": "string", "count": "string", "pools": { "array_of": { "symbol": "string", "project": "string", "apy": "string", "tvl_usd": "string", "pool": "string", "apy_base": "string", "apy_reward": "string", "apy_change_1d": "string", "apy_change_7d": "string", "apy_change_30d": "string", "stablecoin": "string" } }, "filters": { "min_tvl": "string", "limit": "string", "sort": "string", "symbol": "string" }, "tier": "string", "cogs_usd": "string", "latency_ms": "string", "error": "string" }Types only, verified from a real paid call. Values discarded.
This is a paid delivery check: we called the endpoint with its own advertised input and compared the response against its own advertised output. It is the one thing free probing cannot see.
Verifiable receipts
5 paid calls to this host are recorded as tamper-evident receipts, all delivered or graded accurate. Each can be re-verified independently, from the archived bytes up.
wab_1e0ffc47dab70174api.basefeed.io
Promised 4 fields for $0.01, paid, and returned all 4.
Evidence and how to verify it yourself
The real response shape, types only, values discarded:
{
"as_of": "string",
"chain": "string",
"cogs_usd": "string",
"count": "string",
"error": "string",
"filters": {
"limit": "string",
"min_tvl": "string",
"sort": "string",
"symbol": "string"
},
"latency_ms": "string",
"ok": "string",
"pools": {
"array_of": {
"apy": "string",
"apy_base": "string",
"apy_change_1d": "string",
"apy_change_30d": "string",
"apy_change_7d": "string",
"apy_reward": "string",
"pool": "string",
"project": "string",
"stablecoin": "string",
"symbol": "string",
"tvl_usd": "string"
}
},
"source": "string",
"tier": "string"
}Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_1e0ffc47dab70174wab_6ddd84cc283e343eapi.basefeed.io
Promised 2 fields for $0.01, paid, and returned all 2.
Evidence and how to verify it yourself
Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_6ddd84cc283e343ewab_6edfcd36f09dabecapi.basefeed.io
Promised 3 fields for $0.005, paid, and returned all 3.
Evidence and how to verify it yourself
The real response shape, types only, values discarded:
{
"as_of": "string",
"chain": "string",
"cogs_usd": "string",
"error": "string",
"gas_price_gwei": "string",
"gas_price_wei": "string",
"latency_ms": "string",
"ok": "string",
"rpc": "string",
"tier": "string"
}Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_6edfcd36f09dabecwab_8acaa9f775d6622capi.basefeed.io
Asked for Base gas base fee (gwei); returned 0.006, within ±0.01 gwei of 0.005 from Base chain latest block.
Evidence and how to verify it yourself
Graded against a source that cannot be a reseller: Base chain latest block. Returned 0.006 versus a truth of 0.005.
Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.
python3 receipts.py --verify wab_8acaa9f775d6622cThe full record and the format are at /receipts.
What it sells
2 endpoints listed, priced $0.0010 to $0.0100, settling on Base.
$0.0010x402 settlement test$0.0100Base Morpho Blue stablecoin yields
Grades here come from paying this service and recording what happened, or from calling it where it is free. Settlement figures are swept daily from Base USDC Transfer logs. Nothing on this page is sponsored.