api.firstmention.uk
Developer tools API on Base, paid per request with x402.
- Endpoints4
- Price per request$0.01
- Outside payers · 7d2
- Answer 402n/a
Overview
- Seller wallet
- 0xddbee715feb5232af1f2b0f07392aaa0c712e572
- Chains
- Base
- Hosts
- api.firstmention.uk
- CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
- Developer tools1Identity1Market data1Web data1
- First seen
- 2026-10-27 · last seen 2026-10-27
What we observed
Endpoints
EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.https://api.firstmention.uk/s/domain-intel/dns
Trust check for any domain in one call: DNS records, email auth (SPF/DMARC/DKIM), WHOIS registrar and age, plus live HTTP status and TLS certificate issuer/expiry and HSTS. Free /preflight sample and landing page.
BaseIdentity$0.01/ request
2026-10-27
https://api.firstmention.uk/s/funding-rates/funding
Perpetual-futures funding rates and annualized carry for BTC, ETH, SOL and more, from exchange public market-data APIs, in one call. Free /preflight sample.
BaseMarket data$0.01/ request
2026-10-26
https://api.firstmention.uk/s/web-extract/extract
Extract clean readable text or markdown from any public web page: title, language, word/paragraph counts and the full article body. Free /preview sample first.
BaseWeb data$0.01/ request
2026-10-26
https://api.firstmention.uk/s/x402-preflight/check
Check any x402 endpoint before you pay it: /check reads its 402 challenge and validates scheme, network, asset, payTo, price and latency. /uptime returns accumulated reliability history; every checked URL is auto-monito…
BaseDeveloper tools$0.01/ request
2026-10-26
Evidence
Answers HTTP 402
Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.unknown
unknown. We hold no reading for this seller's endpoints.
no reading date
x402-style payments, last 7 days (Base)
x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.2outside payers
5 x402-style payments from 2 distinct payers, $0.05 USDC in the last 7 days (Base, exact read)
window ended 2026-10-27
- Payments
- 5
- Payers
- 2
- USDC
- 0.05
This window shows the pattern of machine noise (few payers, dust amounts), so it does not count toward the evidence ranking.
All USDC received at this payout address: $20.86 (includes payments that are not x402)
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-27, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out
By chain
| Chain | Seller wallet | Endpoints | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xddbee715feb5232af1f2b0f07392aaa0c712e572 | 4 | unknown | 5 x402-style payments from 2 distinct payers, $0.05 USDC in the last 7 days (Base, exact read) |
One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Pricing
The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.
Claim this merchant
Sign a message from the payout address 0xddbee7…12e572 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-27. Appearing here is not an endorsement. Check an endpoint with the doctor.