← The evidence ledger
Evidence row 897
Observed , by baseline/1.
- Kind
- listing
- About
- source_record agentic_market:api-firstmention-uk
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 72a7d974f5236ffa59ab37312c92bc3179f2c523695ca30366a783018c4af54e
- Leaf
- 0x1bb54e29b63a78f657096892d5873acae2715ceb87c6fe554e651aab261f929d
What was observed
{
"endpoints": [
[
"x402",
"https://api.firstmention.uk/s/basedue/due"
],
[
"x402",
"https://api.firstmention.uk/s/bizcal-api/day"
],
[
"x402",
"https://api.firstmention.uk/s/domain-intel/dns"
],
[
"x402",
"https://api.firstmention.uk/s/funding-rates/funding"
],
[
"x402",
"https://api.firstmention.uk/s/fundinglens/rates"
],
[
"x402",
"https://api.firstmention.uk/s/txpreflight/verify"
],
[
"x402",
"https://api.firstmention.uk/s/walletprofile/profile"
],
[
"x402",
"https://api.firstmention.uk/s/web-extract/extract"
],
[
"x402",
"https://api.firstmention.uk/s/x402-preflight/check"
],
[
"x402",
"https://api.firstmention.uk/s/x402index/verdict"
]
],
"name": "api.firstmention.uk",
"owner_address": null,
"raw": {
"caip2_networks": [
"eip155:8453"
],
"category": "",
"description": "",
"domain": "api.firstmention.uk",
"endpoints": [
{
"description": "Base token due diligence and liquidity depth: ERC-20 metadata, Uniswap V2/V3 + Aerodrome pools with reserves/depth and LP-burn share, cross-venue reference price and spread, and position exit cost. Free /sample returns a real recorded response.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"group": "query",
"name": "token",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "basedue",
"tags": [
"base",
"onchain",
"defi",
"liquidity",
"token"
],
"url": "https://api.firstmention.uk/s/basedue/due"
},
{
"description": "Business-day and public-holiday API for US federal and GB bank holidays.",
"method": "GET",
"parameters": [],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "bizcal-api",
"tags": [],
"url": "https://api.firstmention.uk/s/bizcal-api/day"
},
{
"description": "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.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "github.com",
"group": "query",
"name": "domain",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "domain-intel",
"tags": [
"dns",
"domain",
"whois",
"email-auth",
"tls"
],
"url": "https://api.firstmention.uk/s/domain-intel/dns"
},
{
"description": "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.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "BTC",
"group": "query",
"name": "symbol",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "funding-rates",
"tags": [
"funding",
"crypto",
"perp",
"market-data",
"rates"
],
"url": "https://api.firstmention.uk/s/funding-rates/funding"
},
{
"description": "Perpetual funding rates across 7 venues (Binance, Bybit, OKX, Bitget, Hyperliquid, dYdX, Deribit), normalized to 8h and annualized. Free /sample.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "BTC,ETH,SOL",
"group": "query",
"name": "symbols",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "fundinglens",
"tags": [
"funding",
"perpetuals",
"base",
"defi"
],
"url": "https://api.firstmention.uk/s/fundinglens/rates"
},
{
"description": "Base agent toolbox. /preflight simulates a tx (revert reason, gas, EIP-1559 fees in ETH and USD) before you sign. /verify reads a receipt and proves a USDC transfer settled: confirmations, amount, sender, recipient.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": 5,
"group": "query",
"name": "amount_usd",
"required": false,
"type": "number"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "0xe029fcf4ba573f6fdc282208fe855df8cbb3ca9a",
"group": "query",
"name": "pay_to",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "0x54002146b9c089ad89c91d1750b45d0c35e133caa5b0a536df8f57e9c2a4a74b",
"group": "query",
"name": "tx",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "txpreflight",
"tags": [
"base",
"usdc",
"settlement",
"x402",
"gas"
],
"url": "https://api.firstmention.uk/s/txpreflight/verify"
},
{
"description": "Base wallet activity profile + heuristic risk score + exact-address OFAC SDN sanctions screen (US Treasury list, public data). /profile and /sanctions. Free /sample.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "0x4200000000000000000000000000000000000006",
"group": "query",
"name": "address",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": 20000,
"group": "query",
"name": "range_blocks",
"required": false,
"type": "number"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "walletprofile",
"tags": [
"base",
"wallet",
"sanctions",
"ofac",
"compliance"
],
"url": "https://api.firstmention.uk/s/walletprofile/profile"
},
{
"description": "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.",
"method": "POST",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "markdown",
"group": "body",
"name": "format",
"required": false,
"type": "string"
},
{
"default": null,
"description": "",
"enumValues": [],
"example": "https://en.wikipedia.org/wiki/Base_(blockchain)",
"group": "body",
"name": "url",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "web-extract",
"tags": [
"extract",
"scrape",
"markdown",
"article",
"text"
],
"url": "https://api.firstmention.uk/s/web-extract/extract"
},
{
"description": "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-monitored so history compounds. Free board at /monitored.",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "https://api.exa.ai/search",
"group": "query",
"name": "url",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "x402-preflight",
"tags": [
"x402",
"uptime",
"reliability",
"payments",
"monitoring"
],
"url": "https://api.firstmention.uk/s/x402-preflight/check"
},
{
"description": "x402 market intelligence: free instant search of ~60k live listings; paid $0.01 vet/triage (/verdict) + demand & gap report (/demandreport).",
"method": "GET",
"parameters": [
{
"default": null,
"description": "",
"enumValues": [],
"example": "md",
"group": "query",
"name": "format",
"required": false,
"type": "string"
}
],
"pricing": {
"amount": "0.01",
"currency": "USDC",
"maxAmount": "",
"minAmount": "",
"network": "eip155:8453",
"scheme": "exact"
},
"providerName": "",
"quality": null,
"serviceName": "x402index",
"tags": [
"x402",
"market-data",
"agents",
"demand"
],
"url": "https://api.firstmention.uk/s/x402index/verdict"
}
],
"enriched": false,
"iconUrl": "",
"id": "api-firstmention-uk",
"integrationType": "",
"isNew": false,
"name": "api.firstmention.uk",
"networks": [
"Base"
],
"priceSummary": {
"avgCostBasis": "exact",
"avgCostPerTransaction": "0.01",
"currency": "USDC",
"maxAmount": "0.01",
"minAmount": "0.01"
},
"provider": "api.firstmention.uk",
"providerUrl": "",
"serviceName": "",
"tags": [
"base",
"onchain",
"defi",
"liquidity",
"token",
"dns",
"domain",
"whois",
"email-auth",
"tls",
"funding",
"crypto",
"perp",
"market-data",
"rates",
"perpetuals",
"usdc",
"settlement",
"x402",
"gas",
"wallet",
"sanctions",
"ofac",
"compliance",
"extract",
"scrape",
"markdown",
"article",
"text",
"uptime",
"reliability",
"payments",
"monitoring",
"agents",
"demand"
]
},
"source": "agentic_market",
"summary": ""
}What the leaf hashes
{"body":"72a7d974f5236ffa59ab37312c92bc3179f2c523695ca30366a783018c4af54e","id":897,"kind":"listing","method":"baseline/1","observed_us":1793025240843435,"prev":null,"subject":"agentic_market:api-firstmention-uk","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0x1bb4ff0943eaea0f28ef71d5ad14f222a3b277ab5736f413454c08e23bd3f4e2
- 0x1198d9777cd0c265266f343da68804a19203544bbbb54d68fab7f6b6cb75ca86
- 0xc9218a2e6976eca09a45e1a633ab108229650b1f8148e1f7f963c3fce66a7ca9
- 0x2d09e60e4991dc43f64a4f1448cc0cd6bce1e0845d606b635a9727fdd9214e75
- 0xcd59d8f3131bac4c575ac562284215676992f7065a88d4d64d57f1797f81930f
- 0x7c60d445c2200eb93e3a6455dff9162234f2b21dc394271ddc1fe60c9d0c2129
- 0x27b2dc72440c766873ceb887e997935de15b8e2a87b9061f3dab2ca4877998ed
- 0x2fcb74607806b919a93d344fc04e547b740967a7ec57f31eaf30f8328f809021
- 0x78207d584d8cbbec16d7e24b0f0d35715a871e920dadf13c271e874d2d6e1953
- 0xc9368fba7f6c13346c8b2c9c7a63691d3d68f63c71d1ec0d7a4decd43fb3e8c4
- 0x3f914e3a1f6c506299e42b0c551da50ec7ac2c0f0e69260eab2262111b4eb14b
- 0x7ab2e7902b312a74cfdbc32b2906ced29b1fb9dc4280b5378e8eb181ad88686e
- 0xe00c7829e46541e49a308807d357db902e06eff941a833217a8f0dbccd3964f1
- 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae