x402 & ERC-8004 Live Uptime Leaderboard

https://intel.rallylive.ca/data/holidays/es

Public holidays in Spain for a given year: every national and regional public holiday with date, local and English names, whether it is nationwide or which regions observe it, and the weekday, from the Nager.Date public holiday dataset. Business-day and scheduling checks for Spain without an API key. $0.01 per year.

https://dns.intel.rallylive.ca/dns/dkim/20161025

DKIM public key for selector "20161025" of a domain: looks up 20161025._domainkey. (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the 20161025 selector will verify. $0.01 per lookup.

https://email.intel.rallylive.ca/email/spf-authorizes/constantcontact

Does the domain's SPF record authorise constantcontact to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for constantcontact's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/dkim/fm2

DKIM public key for selector "fm2" of a domain: looks up fm2._domainkey. (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the fm2 selector will verify. $0.01 per lookup.

https://intel.rallylive.ca/library/language/hi

Free books in Hindi: public-domain and free-licensed Hindi-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Hindi titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

https://intel.rallylive.ca/library/subject/love-stories

Free public-domain books on "Love stories": browse the catalogue's works tagged with that Library of Congress subject (986 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

https://email.intel.rallylive.ca/email/spf-authorizes/gusto

Does the domain's SPF record authorise gusto to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for gusto's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/host/news/txt

TXT record of news.: looks up the news host under the domain you give (TXT via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like news without enumerating subdomains. $0.01 per lookup.

https://intel.rallylive.ca/library/language/zh

Free books in Chinese: public-domain and free-licensed Chinese-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Chinese titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

https://intel.rallylive.ca/library/films/1960s

Free films of the 1960s: public-domain and free-licensed feature films, shorts, newsreels and archival footage released 1960-1969, from Internet Archive, most downloaded first, each with year, creator, rights status and the download directory. Add words to narrow. Re-verified daily. $0.01 per page of 20.

https://intel.rallylive.ca/library/subject/london-england

Free public-domain books on "London (England)": browse the catalogue's works tagged with that Library of Congress subject (659 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

https://intel.rallylive.ca/library/language/ko

Free books in Korean: public-domain and free-licensed Korean-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Korean titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

https://dns.intel.rallylive.ca/dns/verification/wix

Does the domain carry a wix domain-verification TXT record? Reads the apex TXT records (Cloudflare DoH) and reports whether the wix ownership token is present and the token value (truncated). A present token usually means the company uses wix's product; absence means not verified there. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/verification/miro

Does the domain carry a miro domain-verification TXT record? Reads the apex TXT records (Cloudflare DoH) and reports whether the miro ownership token is present and the token value (truncated). A present token usually means the company uses miro's product; absence means not verified there. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/dkim/2

DKIM public key for selector "2" of a domain: looks up 2._domainkey. (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the 2 selector will verify. $0.01 per lookup.

https://email.intel.rallylive.ca/email/spf-authorizes/campaign-monitor

Does the domain's SPF record authorise campaign monitor to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for campaign-monitor's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

https://api.nullclear.dev/v1/bazaar/verify

Cryptographically verify an autonomous agent's x402 schema contract compatibility and active clearing readiness on Base Mainnet.

https://api.nullclear.dev/v1/bazaar/audit

ERC-8004 agent Sybil reputation score, wash-trading cluster risk, and x402 schema-escrow readiness audit on Base Mainnet.

https://wallets-demo-seller-server.calebgcarithers.workers.dev/weather

Real-time current weather conditions for a city or location, including temperature, humidity, precipitation, wind, and a human-readable condition.

https://api.nullclear.dev/v1/bazaar/market-oracle

Live cross-verified crypto price oracle (BTC, ETH, SOL, BASE tokens) with deterministic spread invariant check and cryptographic attestation.

https://api.nullclear.dev/v1/bazaar/token-security

Base Mainnet ERC-20 token security, contract bytecode verification, liquidity & honeypot risk scanner for AI trading agents.

https://api.nullclear.dev/v1/bazaar/wallet-risk

Base Mainnet counterparty wallet OFAC sanctions screening, Sybil wash-trading concentration flags, and ERC-8004 reputation score.

https://api.nullclear.dev/v1/bazaar/verified-fetch

Cryptographically verified HTTP URL fetcher with canonical LLM refusal detection, JSON schema validation, and deep value invariants.

https://agent-kiosk.vercel.app/v1/ping

Ultra-low-cost ($0.001 USDC) x402 v2 & v1 payment verification, wallet readiness ping, latency check, and echo test on Base Mainnet.

https://agent-kiosk.vercel.app/v1/social-search

Real-time social media search (Reddit, HackerNews) returning clean JSON & Markdown for AI agents.

https://agent-kiosk.vercel.app/v1/domain-intel

B2B company & domain intelligence: DNS records, MX email provider, SaaS tech stack fingerprints from TXT/NS, RDAP registration, and active subdomains.

https://agent-kiosk.vercel.app/v1/web-extract

Clean webpage-to-Markdown extractor with automatic Prompt Injection trap scanning for AI agents.

https://agent-kiosk.vercel.app/v1/token-alpha

Real-time DEX order-flow & token alpha signal analyzer: buy vs. sell pressure, liquidity depth, volume velocity, and top pools.

https://agent-kiosk.vercel.app/v1/defi-swap-quote

Executable DeFi Swap & Cross-Chain Bridge Action Calldata Builder (LI.FI + ParaSwap): computes best DEX/Bridge route and returns ready-to-sign EVM transaction calldata (to, data, value, gasLimit) on Base, Ethereum, Arbitrum, Polygon, and Optimism.

https://agent-kiosk.vercel.app/v1/github-intel

GitHub repository & open-source competitive intelligence: stars, forks, open issues, latest releases, and top repositories by topic.

https://x402tap.com/api/weather

Live current weather conditions for any city, sourced from Open-Meteo

https://blockrun.ai/api/v1/exa/search

Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.

https://www.api-xpay.com/x402/ping

Health check ping

https://www.api-xpay.com/x402/payment

Payment receipt with transaction details

https://www.api-xpay.com/x402/status

Service status and payment configuration

https://www.api-xpay.com/x402/uuid

Generate a random UUID v4

https://www.api-xpay.com/x402/random

Generate a random integer and hex bytes

https://www.api-xpay.com/x402/time

Current server time in UTC

https://www.api-xpay.com/x402/ip

Return the requester IP address

https://www.api-xpay.com/x402/network

Base network and USDC payment metadata

https://agent-kiosk.vercel.app/v1/whale-alpha-radar

Complete Multi-Chain Whale Portfolio & DeFi Yield Optimizer Report: profiles wallet across 4 EVM chains (Base, ETH, Arbitrum, Polygon), matches idle USDC/ETH against top DeFiLlama yield pools, and calculates projected annual yield.

https://agent-kiosk.vercel.app/v1/defi-yields

DeFi highest APY & yield radar powered by DeFiLlama: ranks top liquidity and lending pools by APY and TVL for any token and chain.

https://agent-kiosk.vercel.app/v1/funding-rates

Real-time Cross-Exchange Perpetual Funding Rate Arbitrage, Annualized Basis Spread (APR), Open Interest & Crowded Positioning Radar across Hyperliquid and dYdX v4.

https://data.intel.rallylive.ca/data/air-quality/chicago

Air quality in Chicago right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Chicago. $0.01 per call.

https://agent-kiosk.vercel.app/v1/tx-simulate

Pre-flight EVM Transaction Simulator, Gas Estimator, Revert Reason Decoder, ERC-20 Allowance Checker & EIP-1967 Proxy Detector across Base, Ethereum, Arbitrum, Optimism, and Polygon.

https://agent-kiosk.vercel.app/v1/chat/completions

OpenAI-compatible LLM Chat Completions Gateway ($0.002 USDC/call). Drop-in replacement for /v1/chat/completions — change base_url to https://agent-kiosk.vercel.app/v1 and pay per request in Base USDC via x402 with zero account or API key setup.

https://agent-kiosk.vercel.app/v1/wallet-profiler

Multi-chain whale & wallet portfolio profiler across Base, Ethereum, Arbitrum, and Polygon: live USDC & ETH balances, transaction counts, and smart contract detection.

https://dns.intel.rallylive.ca/dns/verification/docker

Does the domain carry a docker domain-verification TXT record? Reads the apex TXT records (Cloudflare DoH) and reports whether the docker ownership token is present and the token value (truncated). A present token usually means the company uses docker's product; absence means not verified there. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/host/news/a

A record of news.: looks up the news host under the domain you give (A via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like news without enumerating subdomains. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/verification/atlassian

Does the domain carry a atlassian domain-verification TXT record? Reads the apex TXT records (Cloudflare DoH) and reports whether the atlassian ownership token is present and the token value (truncated). A present token usually means the company uses atlassian's product; absence means not verified there. $0.01 per lookup.

https://agent-kiosk.vercel.app/v1/prediction-markets

Live prediction market odds & implied event probabilities (%) from Polymarket and Manifold Markets for macro, crypto, tech, and politics.

https://email.intel.rallylive.ca/email/spf-authorizes/customerio

Does the domain's SPF record authorise customerio to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for customerio's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

https://email.intel.rallylive.ca/email/hosted-by/cloudflare-email-routing

Is the domain's email hosted by cloudflare email routing? Looks up the MX records (Cloudflare DoH) and matches them against cloudflare-email-routing's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.

https://email.intel.rallylive.ca/email/spf-authorizes/braze

Does the domain's SPF record authorise braze to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for braze's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

https://email.intel.rallylive.ca/email/spf-authorizes/mailgun

Does the domain's SPF record authorise mailgun to send its mail? Reads the SPF TXT record (Cloudflare DoH) and checks for mailgun's include/ip mechanisms, returning yes/no, the matching mechanism and the full record. Confirms a vendor integration is wired for deliverability, or spots an unexpected sender. $0.01 per lookup.

https://intel.rallylive.ca/library/language/ga

Free books in Irish: public-domain and free-licensed Irish-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Irish titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

https://intel.rallylive.ca/library/language/ca

Free books in Catalan: public-domain and free-licensed Catalan-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Catalan titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

https://dns.intel.rallylive.ca/dns/verification/dropbox

Does the domain carry a dropbox domain-verification TXT record? Reads the apex TXT records (Cloudflare DoH) and reports whether the dropbox ownership token is present and the token value (truncated). A present token usually means the company uses dropbox's product; absence means not verified there. $0.01 per lookup.

https://dns.intel.rallylive.ca/dns/verification/status-page

Does the domain carry a status page domain-verification TXT record? Reads the apex TXT records (Cloudflare DoH) and reports whether the status-page ownership token is present and the token value (truncated). A present token usually means the company uses status-page's product; absence means not verified there. $0.01 per lookup.

https://x402-trust.com

x402 Trust MCP Discovery & Endpoint Reputation Feed

https://agent-kiosk.vercel.app/v1/token-due-diligence

Institutional 3-in-1 Token Due Diligence Report: combines GoPlus on-chain honeypot/tax security audit, DexScreener order-flow alpha & liquidity depth, and live Reddit/HN social sentiment into a composite investment grade (A-F).

https://nullclear.dev

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev/a2a

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev/.well-known/agent-card.json

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev/openapi.json

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev/agents.md

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev/.well-known/erc-8004.json

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://api.nullclear.dev/mcp

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://email.intel.rallylive.ca/email/hosted-by/cpanel-self-hosted

Is the domain's email hosted by cpanel self hosted? Looks up the MX records (Cloudflare DoH) and matches them against cpanel-self-hosted's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.

https://sol.blockrun.ai/api/v1/chat/completions

Qwen3.7 Flash API call (~17 input, 16 max output tokens)

https://sol.blockrun.ai/api/v1/exa/search

Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.

https://quartermaster.surewhynot.app/v1/gas

Current Base gas prices and a simple-transfer cost estimate for transaction planning.

https://api.bitrefill.com/x402/invoice/pay

Pay a Bitrefill invoice in USDC via x402 to buy gift cards, eSIMs & mobile top-ups across 180+ countries.

https://api.402xagent.com/v1/products/endpoint-spot-check

402xAgent Endpoint Spot-Check — Pre-payment verification oracle for x402 clients

https://agent-kiosk.vercel.app/v1/maps-leads

Local business lead extractor returning company name, phone, website, address, and coordinates.

https://agent-kiosk.vercel.app/v1/prediction-arb

Unified Kalshi, Polymarket & Manifold Prediction Market Aggregator and Cross-Venue Probability Spread / Arbitrage Scanner.

https://agent-kiosk.vercel.app/v1/buy-pass

Instant 30-Day Prepaid API Key Pass (ak_live_...) for AI agents, LangChain, n8n, Make.com, and developers. Unlocks all 23 paid per-call Agent Kiosk REST & MCP intelligence tools for 30 days via X-API-KEY header without per-call x402 signing.

https://agent-kiosk.vercel.app/v1/macro-radar

Global TradFi, Macro & DeFi Capital Flow Intelligence Radar: live S&P 500, Nasdaq, VIX Volatility, US Dollar Index (DXY), US 10Y Treasury Yield, Gold, Crude Oil, Crypto Fear & Greed, BTC Dominance & DeFi Chain TVL.

https://agent-kiosk.vercel.app/v1/security-audit

Pre-flight security scanner for 0x smart contracts/tokens (honeypot, tax, liquidity via GoPlus & DexScreener) and URLs (phishing & prompt injection).

https://cheaptokens.ai/api/buy

OpenAI-compatible LLM inference and chat completions via discounted Venice API credits. Pay USDC to receive a live Venice.ai API key for /api/v1 models, chat, images, audio, video, and embeddings. Same-Day credits are 30–90% below Venice direct and expire at 23:59 UTC; Prepaid API Keys support recurring agent jobs.

https://www.api-xpay.com/x402/quote

Payment quote with amount, asset, and merchant wallet

https://laso.finance/auth

Get a Firebase ID token for authenticating with the callable APIs

https://coinpayportal.com

CoinPay x402 AI Crawler Gateway & Metered Pay-Per-Crawl Middleware

https://x402.ottoai.services/token-details

Token price, market cap, volume, supply, and basic metrics. Works for any listed token.

https://api.youraitools.co/payguard/v1/address

Sanctions screen for one crypto address, for agents and apps that send payments: exact match against all 1050 digital currency addresses in the official US Treasury OFAC SDN list (EVM case-insensitive). Returns sanctioned true/false, matching SDN entity, programs and list date, a chain guess and checksum validity, plus the list date. Informational, not legal advice.

https://api.402rates.com/v1/ping

Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only

https://dev.intel.rallylive.ca/dev/convert/acres-to-hectares

Convert acres to hectares: send a number, get the converted value with the exact factor (or formula for temperature), the unit category and a rounded human-readable form. Deterministic, no network call. $0.01 per conversion.

https://api.nullclear.dev/.well-known/x402.json

Autonomous non-custodial clearing, reputation scoring, and KYA arbiter for AI commerce on Base Mainnet

https://ipv4.fr/x402/v1/dns/example.com

DNS records (A, AAAA, MX, TXT, NS by default) for a domain.

https://ipv4.fr/x402/v1/headers?url=example.com

HTTP response headers of a public URL (HEAD request, redirects reported, not followed).

https://ipv4.fr/x402/v1/ssl/example.com

TLS certificate of a public host on port 443: validity, issuer, expiry, SAN.

https://ipv4.fr/x402/v1/geo/8.8.8.8

IP geolocation: country, city, ISP, coordinates, timezone.

https://ipv4.fr/x402/v1/blacklist/8.8.8.8

Check an IPv4 address against 3 DNS blacklists (Barracuda, SpamCop, UCEPROTECT).

https://api.oblique.markets/api/v1/paid/time

Use when an agent needs a trusted UTC timestamp or the smallest end-to-end test of its x402 payment client. Returns Current server time as ISO 8601 and Unix epoch milliseconds, returned only after a real settlement. $0.01.

https://pro-api.coingecko.com/api/v3/x402/onchain/search/pools

Search onchain DEX pools and token, by contract address, name, or token symbol.

https://blockrun.ai/api/v1/exa/contents

Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.

https://laso.finance/get-card

Get a prepaid card for use inside the United States

https://blockrun.ai/api/v1/chat/completions

AI chat completions API - pay per request with USDC on Base

https://api.bitrefill.com/x402/gift-cards/search

Search 10,000+ gift card & voucher brands across 180+ countries by name and country. Pay in USDC via x402, no account.