"How to check differences between files" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check before your agent installs, connects or pays. install_check: before installing an npm or PyPI package, a GitHub repo, a skill, an editor extension or an MCP server, it answers allow / hold / block (known malicious packages from OSV, typosquats of official MCP servers, names that do not exist, install scripts, maintainer changes). check_repo_config: before opening a repository someone sent you, it reads its agent configuration (MCP servers, hooks, editor tasks, instruction files) and runs nothing. check_service and verify_tools: live status of any MCP server or x402 endpoint, real price and payTo vs the catalogue listing, OFAC and stablecoin-freeze screening, tool-set changes, an open Trust Score. find_service finds working services. preflight_payment decides allow / hold / block right before an x402 payment is signed; payment_status prevents paying twice; report_purchase records what a paid call delivered. Verdicts are signed into a public transparency log. Free, no account. Every other tool (evidence packs, agent identities, boards, mail) is at https://alalanet.com/mcp/full; install and MCP-server checks alone are at https://alalanet.com/mcp/guard. Claude Code plugin: alalanet-guard.
Pre-trade token safety check for AI agents. Simulates a sell before you buy, then returns one low/medium/high/unknown verdict with the signals behind it: sellability, buy/sell tax, liquidity depth, pair age, same-ticker impersonation, owner powers from bytecode. Ethereum, BSC, Base, Solana. Fail-closed - a check that cannot run answers unknown, never low. Publishes its own measured error rate with the benchmark harness in the repo. Free, no signup, no API key, MIT.
Query OpenStreetMap with Overpass QL, find water and food stops along routes, and check weather at arrival time. Free API key: 500 requests/day, including commercial use. [Setup and examples](https://geo.runningcat.dev/mcp?utm_source=glama&utm_medium=referral&utm_campaign=mcp_directory).
ctlogs.dev searches the public Certificate Transparency logs, where every publicly trusted TLS certificate is recorded. Connected to it, an assistant can answer questions such as "which subdomains does example.com have", "who issued the certificates for this name" or "which domains does this company hold certificates for".
VAREXIS-INDEX — Source-Linked Evidence & Verification Tools for AI Agents VAREXIS-INDEX provides free, source-linked evidence for agent decisions through twelve focused guides and three distinct read-only MCP connectors. The original `/mcp` connector covers the approved search and preview population. The companion `/mcp/catalogue` provides deterministic access to 724 additional records by category and exact identifier. Configure both through the existing quickstart: https://varexis.tech/index-connect#quickstart Four optional one-time local checkers analyse supported customer-supplied declarations: Tool Admission £49, Audit Coverage £79, Data Exit £79 and Transaction Integrity £149, excluding VAT. These products do not independently inspect live systems, enforce permissions, establish payment settlement, verify deletion or certify compliance. Twelve free decision guides: https://varexis.tech/index-packs#free-decision-guides Read-only agent enquiry navigation (12 guides, 129 referenced records): https://varexis.tech/varexis-index/agent-entry.json Select a candidate guide, then follow the exact connector tool and identifier in the canonical manifest. Navigation does not establish applicability, a customer outcome or authority to act. Evaluate agent permissions, delegated authority, audit provenance, payment integrity, data retention and software supply-chain evidence before relying on documented claims. **FREE MCP CONNECTOR** Endpoint: https://varexis.tech/mcp Connect using Streamable HTTP. No authentication is required for public evidence discovery. Four free, read-only tools: - find_evidence_questions — Find existing reviewed evidence questions and matching routes. - preview_evidence_answer — Retrieve complete supported public answers, sources, limitations and snapshot hashes. - find_package_advisories — Find source-bound software advisory records. - get_index_access_options — Discover available services, pricing, licensing and purchasing requirements. Public MCP cannot execute actions, inspect private systems or authorise deployment. Developer quickstart: https://varexis.tech/index-connect **LICENSED VERIFICATION TOOLS** Four separately licensed, reusable local executables: **1. Agent Tool Admission & Permission Control — £49** Compare declared tool actions, resources, recipients and permissions across supported GitHub, Playwright, Notion and Slack integrations. Identify authority conflicts, missing verification and permission changes before human review. **2. Agent Audit & Evidence Coverage — £79** Reconcile declared identities, authorisations, actions and outcomes. Identify missing audit events, inconsistent references and unresolved export, retention or recovery evidence. **3. Agent Data Exit & Retention Reconciler — £79** Compare declared data inventories, exports, deletions, retention conditions and residual copies. Identify missing evidence and unresolved data-custody conditions during migrations and offboarding. **4. Agent Transaction Integrity & Replay Analyzer — £149** Reconcile declared spending authority, amended transaction terms, scoped idempotency keys, retries and reported outcomes. Identify conflicting purchase attempts and unresolved payment or entitlement evidence. All four products are separately licensed for reusable internal execution. Prices are one-time, exclude applicable VAT and do not include subscriptions, hosting or future updates. Checkers analyse supplied declarations locally. They do not independently inspect production systems, execute payments, enforce permissions, certify compliance or establish financial settlement. Explore all products, representative findings and free previews: https://varexis.tech/index-packs **FREE EVIDENCE PACKS** Seven complete public evidence packs cover: - GitHub and Playwright permission boundaries. - Notion and Slack access and data handling. - Audit and export evidence coverage. - Next.js advisory source assertions. - SonarQube, Snyk and Semgrep scanner trust. - Telemetry redaction and exception handling. - GitHub release approval and artifact identity. Source reviews include documented versions, provenance, exclusions and reliance boundaries. They are not independent deployment tests or current security certifications. 724 additional reviewed records are publicly available through exact-ID HTTP catalogue links and the separate read-only https://varexis.tech/mcp/catalogue connector. They remain outside the original MCP search and preview population and paid saved retrieval. Enhanced natural-language search for these additions remains on HOLD. Public catalogue: https://varexis.tech/varexis-index.json **SAVED EVIDENCE & SUBSCRIPTIONS** - Single Request: £5 — Save a version-bound published evidence result or obtain the eligible original Agent Tool Evaluation & Integration Kit. - Evidence Receipt: £19 — Add an unsigned delivery receipt to the eligible saved result. - Research: £29/month. - Developer/API: £149/month. Prices exclude applicable VAT. Subscription eligibility, rate limits and exclusions apply. The four separately licensed verification executables are not included in these existing evidence or subscription offers. **AGENT PURCHASING & RECOVERY** VAREXIS supports hosted Stripe checkout and compatible authorised MPP/Stripe Shared Payment Token purchasing through separate payment interfaces. Agent purchases require owner spending authority for the exact VAT-inclusive quote and any necessary provider authentication. Not every agent or wallet is supported. Public MCP remains free and read-only. Payment credentials and private customer data must not be submitted to the public connector. Existing purchases should be retrieved using the original credential. Uncertain payments must be investigated and recovered through supported procedures, not automatically purchased again. Purchase or recover: https://varexis.tech/index-access Agent payment contract: https://varexis.tech/varexis-index/agent-payments.json **WHY VAREXIS?** VAREXIS combines source-linked evidence, explicit limitations, versioned deliverables and structured verification of supplied declarations. Its purpose is to help agents and developers distinguish what available evidence actually establishes from what remains uncertain, unsupported or outside authority. Free evidence discovery. Transparent product scope. Reusable local verification. Bounded reliance. Website: https://varexis.tech Developer integration: https://varexis.tech/index-connect MCP endpoint: https://varexis.tech/mcp Additional optional connector: https://varexis.tech/mcp/guidance/v1. Configure it explicitly for get_decision_guide (exact published guide IDs) and check_tool_admission_fit (bounded, source-bound declaration-review suitability). Tool schemas and setup: https://varexis.tech/varexis-index/guidance-mcp-v1.json and https://varexis.tech/index-connect#bounded-guidance. The original /mcp four-tool connector and /mcp/catalogue two-tool connector remain distinct and unchanged. The additional tools are free and read-only; they do not execute actions, verify live permissions, grant entitlements or purchase anything. Missing or unbound applicability returns evidence-required. The existing Tool Admission price and licence remain unchanged.
Let your AI agent pay for APIs and data without handing it your money. In ChatGPT, Claude or Grok, the agent finds paid x402 APIs (with each seller's payout record from x402 Doctor) and asks to pay; you approve and sign each payment in your own wallet: MetaMask or Coinbase Wallet (USDC on Base), Phantom (USDC on Solana) or Xaman (RLUSD on the XRP Ledger). Fizzl checks every payment before you sign and every paid answer for hidden instructions. Fizzl never holds your keys. Free to start.
Open registry for AI agents: check who stands behind an agent and what it may do.
Free read-only check of a public GitHub repo for eight security signals related to the EU CRA.
Sealgraf checks agent purchases against the owner's limits and seals a receipt anyone can check.
Check without an account whether ProofSnap issued an evidence package, by the SHA-256 of its manifest.json. No sign-in needed.
Audit MCP configs and skill files for over-broad scope and injection risk. 6 of 8 free.
Check a document for hidden text before your agent reads it. PDF, Office, RTF, HTML.
Free, read-only vulnerability intelligence merged from the CVE List, NVD, GitHub Advisory Database, OSV, ENISA EUVD, CISA KEV, FIRST EPSS and Exploit-DB. Seven tools search advisories, look up CVE/GHSA/EUVD/OSV IDs, check package and product versions, rank patch priorities, and check lockfiles, SBOMs or Wappalyzer exports. Results include source links, CVSS, EPSS, exploitation evidence and published fixes where available. No account or API key. Documentation: https://vulnerable.now/agents
Safe to sign? EVM/Solana/XRPL/Algorand/Stellar txs, permits, tokens; OFAC screen: green/orange/red
Check npm and PyPI packages exist before install: versions, age, downloads, look-alikes.
Check Supabase SQL for who can read and write each table: RLS gaps, open policies, grants, fix SQL.
Verify a company before your agent pays, onboards or contracts it. One call returns one verdict (ok / review / blocking / not found) from official public sources: US restricted-party lists (Consolidated Screening List incl. OFAC SDN, refreshed daily), UK Companies House, Canadian federal corporations, GLEIF legal entity status, and contractor licences in Québec (RBQ, RENA), Washington and Oregon. Also: npm/PyPI package safety check. Free tools: qc_contractor_check, qc_licence, pkg_check (daily quota). Paid tools: pay per call in USDC on Base (x402), no account.
A vault for .env files and project credentials: one encryption key per project, a second factor before protected values open, an audit row for every reveal, and scoped MCP access for coding agents.
Check an agent's INAM reputation before trusting it, and sign a receipt when work is done.
Manage cookie banners, run cookie scans and check GDPR/CCPA compliance from your AI assistant.
Deltabridge brings an AI-native cyber threat intelligence platform into your AI agent. Search a knowledge graph of 200,000+ threat actors, malware families, vulnerabilities, indicators and campaigns, mapped to MITRE ATT&CK. Look up and enrich IOCs, trace links between entities and read living briefs built from 300+ open sources. Read-only, scoped to your organisation, with OAuth sign-in or an API key. Included on Researcher, Business and Enterprise plans.
Free CISM, CISSP, CISA, AAISM and AAIA practice questions, and read-only access to your study.
Governed organizational memory for AI, by EigenAtom. ChatGPT, Claude, Cursor and other agents save explicit memories to one shared store over MCP; AI only suggests labels, and the organization's deterministic policy decides who may read each memory, so recall returns only what the signed-in person may see. No admin bypass, audited changes, and memory content never reaches logs. Free 60-day trial, no credit card.
Causal check on AI agent claims, from ad-spend/ROAS lift to any decision: pass, caution or hold.
Verify emails and use FairMatch to search, quote and unlock verified work-email leads.
30 security tools + the Vigia agent to audit MCP servers before you connect.
SpotCheck scores any Spotify playlist 0 to 100 for bot-farm patterns from public data, and scans every playlist behind a distributor's artificial streaming warning. Free tier, no Spotify login. https://spotcheck.cc
Arsen is a human risk management platform that enables security teams to assess employee exposure through advanced phishing, voice phishing, and deepfake simulations, and strengthen their resilience with adaptive cybersecurity awareness training. Arsen MCP connects your Arsen platform to your preferred AI assistant, including Claude, ChatGPT, and any MCP-compatible assistant. With Arsen MCP, you can: 1. Build and launch campaigns. Let your AI assistant prepare phishing simulation campaigns and cybersecurity awareness programs, then launch them with your approval. 2. Get actionable insights from your data. Ask questions in plain language and get answers based on your organization's actual data, including campaign results, click, compromise and reporting rates, phishing score trends, coverage, and teams that need attention. 3. Manage multiple client organizations. Give MSSPs the ability to query and work across every client organization they manage, from a single AI assistant. Secure by design. Users authenticate with their Arsen account (SSO and MFA supported), and every request is governed by their existing Arsen permissions.
Prove end users to agents and apps: login-links, OIDC clients, and API keys over remote MCP
Check whether a website is trustworthy: trust score, verdict, red flags and a citable report.
Free vulnerability lookup and feeds for agents. Look up any CVE, GHSA or OSV ID, read vulnerability feeds filtered by technology, ecosystem, critical or CISA KEV, and check a lockfile for known vulns. Data is merged from the CVE List, GitHub Advisories, OSV, NVD, EUVD, CISA KEV, EPSS and Exploit-DB. No account or API key. Built by Sazabi.
What breaks between versions, vulnerabilities, compatible versions, EOL dates: npm, PyPI, Rust, PHP.
Wire your admin panel to Hibira Live Chat single sign-on: setup, code for your stack, token checks.
Check whether an IP address or network is malicious and report abusive IPs to isIPsafe.
Live conflict reports traced to source: strikes, attacks and military activity, read-only.
Verification of signed records, plus an EU DPP check.
Database guardrails for AI agents: check SQL against your Vericto rules before it runs.
Ask about your Yungle transfers, share big files, download what you're sent. Approve every send.
30 security tools + the Vigía agent to audit MCP servers for prompt injection, SSRF, leaked secrets, auth bypass and more — scan before you connect.
Check untrusted text (user messages, retrieved pages, tool outputs) for prompt injection before it reaches the LLM. Returns safe or not, plus the threat type. Free tier of 10,000 checks a month.
