Security & trust: MCP servers, A2A agents and x402 APIs

Security and trust checks: vulnerabilities, threats, fraud signals, verification and audits. 144 listings in the Rooms directory, 144 answering our latest daily check. Each one links to its endpoint, how to call it and its live status.

AGORA Omega Live MCP
Pay-per-call checks for AI agents: sanctions, MiCA, French KYB, AI Act. USDC via x402.
MCP server · com.agoraverify
AIS Gateway — the campus front desk for AIS MCP buildings Live MCP
Front desk for the AIS MCP campus: lists our buildings (CVE, Flight Recorder), prices, how to pay
MCP server · ai.aislabs
aislabs.ai Live x402
CVEs added to CISA KEV in the last 7 days (complete catalog), annotated with today's AIS ranks — or unlock every CVE route with an AIS CVE key ($19/30d): https://aislabs.ai/gateway/ (5 paid endpoints on api.aislabs.ai.)
x402 paid API · 5 endpoints
AstraNL Dutch counterparty check Live MCP
Check a Dutch supplier before you pay: KvK register, name match, VIES VAT, EU sanctions. No key.
MCP server · com.astranl
AstraVerify Domain Trust Check Live MCP
Email security and AI discoverability scores for any domain, with the exact record or tag to fix.
MCP server · com.astraverify
AUX Evidence and Certification Live A2A
Production discovery for bounded independent evidence, signed certification, policy checks, and non-executing single-use handoffs.
A2A agent · AUX by PrdictionEdge · 12 skills
banking-compliance-production.up.railway.app Live x402
Search the federal banking compliance rules database. 56 rules across Reg DD, Reg Z, UDAAP, ECOA, BSA/AML, and more.
x402 paid API · 1 endpoint
BidMachine Ad Exchange Live A2A
Agentic seller agent for the BidMachine ad exchange exposed via A2A intents. Buyer agents can search inventory, request deals, monitor delivery, query market-rate intelligence (CPM percentile bands, counter-offer signal…
A2A agent · BidMachine · 12 skills
billitright.co Live x402
Password - CASA Cybersecurity Assessment - Consolidates evidence on secure communications, including certificate validity, hostname matching, protocol and cipher strength, forward secrecy, and TLS vulnerabilities. It de…
x402 paid API · 1 endpoint
BlackVeil DNS & Email Security Scanner Live MCP
DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
MCP server · com.blackveilsecurity
BlockchainAnalysis Live MCP
Compliance MCP for AI agents: sanctions & KYT screening on 50+ chains, stablecoin-freeze, oracle.
MCP server · io.blockchainanalysis
Bynn Live MCP
Document fraud detection for manipulated, fake and AI-generated PDF and image documents.
MCP server · com.bynn
CallerKit Live MCP
Caller ID and phone lookup: names, spam reports, fraud risk score, name/email search.
MCP server · com.caller-kit
ChangeNOW Live MCP
Quote, create and track cross-chain crypto swaps. Non-custodial exchange, no account, no KYC.
MCP server · io.changenow
compliapi.com Live x402
Screen a website URL or domain against OFAC SDN and other global sanctions lists. Call before paying, advertising on, or integrating with a website to check for sanctions associations. Returns per-list matches with sour…
x402 paid API · 4 endpoints
Compuute MCP Security Scanner Live MCP
Scan any public GitHub MCP-server repo for security issues. 37 MCP-specific L1 rules, 8 languages.
MCP server · io.github.Compuute
ContrastAPI Live MCP
55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.
MCP server · com.contrastcyber
Crimson Crawler Live MCP
Enrich, search, assess, and manage threat intelligence through 80+ typed MCP tools.
MCP server · com.crimsoncrawler
CVElens Vulnerability Intelligence Live MCP
CVE triage in one call: NVD, CVSS, CISA KEV, EPSS, public exploits and an explained risk score.
MCP server · com.cvelens
Cyber Library Live MCP
Search and read Cyber Library, a free structured cybersecurity knowledge base. Read-only, no auth.
MCP server · com.cyberlibrary
Dabra MCP Live MCP
Brazilian company and person data by CNPJ/CPF: registry, partners, tax status, sanctions, lawsuits.
MCP server · com.dabradata
DataNexus MCP (dev-7bd0) Live MCP
55 tools. Verified public data — CVE/SBOM security audits, licence compliance, frontend security scanning, nonprofit 990 filings, federal contracts, NPI lookups, patents, and domain intelligence
MCP server · dev-7bd0
Depcheck Live MCP
Known vulnerabilities for exact package versions from OSV, with fixes. Paid per call, x402.
MCP server · dev.kaneky
Dregs Live MCP
Fraud and abuse detection for SaaS: investigate scored identities, triage escalations, tune rules.
MCP server · com.dregs
Earning Paths Atlas Live MCP
Sourced platform rules on where AI agents and their humans can earn money: AI/bot policy, KYC, fees.
MCP server · dev.earningpaths
EchelonGraph CVE & Exposure Live MCP
CVE, KEV, EPSS, SBOM and advisory lookups; per-CVE exposure from Shodan data (© Shodan). Keyless.
MCP server · io.echelongraph
EQVPS — VPS and code sandboxes for AI agents Live MCP
No-KYC VPS + per-second code sandboxes AI agents run over MCP — 75 tools, SDK, pay BTC/XMR/USDC/USDT
MCP server · io.github.Poiuyhje
Eterna MCP Live MCP
No-KYC managed MCP for AI agents: sandboxed TypeScript trading SDK, isolated sub-accounts, futures.
MCP server · io.github.EternaHybridExchange
factline.dev Live x402
Use when you need to check that a Dutch address exists or get its exact spelling and coordinates: official BAG address from postcode + house number or free text, latitude/longitude, BAG ids, municipality, province and C…
x402 paid API · 12 endpoints
Fallax Live MCP
Fallax is a phishing simulation and security awareness training platform. Read your results.
MCP server · io.fallax
FEDLIN Scanners Live MCP
Exposes FEDLIN's public security scanners as agent-callable tools over Streamable HTTP.
MCP server · com.fedlin
Feldspar free repository security scan Live MCP
Free deterministic security scan of public git repos: OSV.dev vulnerable deps, secrets, config lint.
MCP server · com.project-feldspar
Fidro Live MCP
Signup fraud checks: score emails and IPs, look up IPs and manage your blocklist.
MCP server · io.fidro
FirmTape Geo - public records of world events Live MCP
Geopolitical OSINT: sanctions, NOTAMs, maritime warnings, outages, conflict records with sources
MCP server · com.firmtape
Gapup MCP — 270+ Agent-payable AI Tools Live MCP
270+ agent-payable C-suite expertises (competitive intel, SEC filings, sanctions multi-jurisdiction, KYC, pentest scope, clinical evidence GRADE-graded, real-estate deals EU-first, ESG, NAICS classifier, patent landscap…
MCP server · getgapup
Gemalli B2B Trade Live MCP
Global B2B trade: verified manufacturers, product search, sanctions screening, HS codes.
MCP server · com.gemalli
Genesis402 by UnyKorn (x402 pay-per-call) Live MCP
Counterparty checks, sanctions screening, company lookup and 360+ pay-per-call APIs over x402.
MCP server · io.github.FTHTrading
geoip.bip-rep.com Live x402
Resolve any public IPv4/IPv6 address (or hostname) to geolocation for analytics, fraud, and ops agents. Returns ISO country code, region, city, IANA timezone, latitude/longitude, EU membership flag, and the matched netw…
x402 paid API · 1 endpoint
GitHits Live MCP
Search public open-source code, documentation, metadata, vulnerabilities, changelogs, and examples.
MCP server · com.githits
Grisoco AI security audits Live MCP
Smart-contract security audits for EVM chains and DAML: quote, run and fetch reports.
MCP server · com.grisoco
HiddenSwap Live MCP
No-KYC crypto swaps, no account or email. Read-only quotes, coins, swap links, order status.
MCP server · com.hiddenswap
HORIZON SHIELD KIRA (The HORIZ音s株式会社) Live A2A
An independent, pre-transaction auditor for construction and renovation estimates. A borderless integrity layer (is this estimate honest and structurally sound) that works in any country and language, judging lump-sum p…
A2A agent · The HORIZ音s株式会社 · 3 skills
HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, KYC Screening, Sto… Live MCP
70+ pay-per-call tools for AI agents: web search, email verify, KYC, stocks, crypto, news, data
MCP server · io.github.Its-fortunatefolly
Imperio — Italian Tax & Compliance Tools Live MCP
Italian tax + anti-fraud: CF, P.IVA, IBAN, ATECO, IMU, F24, FatturaPA, NIS2. 23 free + 5 with key.
MCP server · com.imperioutils
InfoSec Job Board Live MCP
Search 10k+ live cybersecurity jobs from 246 security companies, plus salary benchmarks and stats.
MCP server · com.infosecjobboard
IntoDNS.ai DNS & Email Security Scanner Live MCP
DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.
MCP server · ai.intodns
LayerCall Live MCP
Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.
MCP server · com.layercall
LEGIT (GONNA) Live A2A
LEGIT is the trust oracle for the x402 agentic economy: measured trust scores and organic demand intelligence for merchants across 20 chains. The leaderboard is free; compare and arena verdicts are paid per call in USDC…
A2A agent · GONNA · 6 skills

Related capabilities

x402 paid APIs On-chain data Legal & compliance Email Coding & dev tools Maps & travel Agent infrastructure Trading & markets

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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