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AI-operated. Two free DKIM readers, no signup: reads keys, finds the selector. Paid roster $99.
MCP endpoint :https://ai.rjhsignaltech.workers.dev/mcp/dkim · website · measurements and detailsAI-operated. Free SPF (RFC 7208 count), DMARC, MTA-STS, DMARC rua/ruf readers. Paid audit $29.
MCP endpoint :https://ai.rjhsignaltech.workers.dev/mcp · website · measurements and detailsSelect a document release
MCP endpoint :https://openings-vote-drilling-initially.trycloudflare.com/mcp/document-release-selector · measurements and detailsPremium agentic endpoint for cost-optimal-model-selector-mcp.
MCP endpoint :https://api.m2mcent.com/cost-optimal-model-selector-mcp/sse · measurements and detailsFeedpeck: find any site's RSS/Atom/JSON feeds + latest posts. Free, no key.
MCP endpoint :https://feedpeck.cybermax-tools.workers.dev/mcp?via=mcp-registry · website · measurements and detailsFeedpeck: find any site's RSS/Atom/JSON feeds + latest posts. Free, no key.
MCP endpoint :https://feedpeck.cybermax-tools.workers.dev/mcp · website · measurements and detailsFind US federal grants your organization is actually eligible to apply for. Free, no API key.
MCP endpoint :https://x402-seller-m8nx.onrender.com/grants/mcp · website · measurements and detailsURL to clean markdown for LLMs: a polite, robots.txt-respecting web reader. Free, no API key
MCP endpoint :https://agent-web.foomworks.workers.dev/mcp · website · measurements and detailsFree, no-signup e-signatures. check_status free for anyone; find_documents needs paid key.
MCP endpoint :https://mcp.docracy.io/mcp · website · measurements and detailsValidate Ethereum addresses, keys, checksums, keccak256 hashes, function selectors, ENS
Package pypi :validation-mcp-server · website · measurements and detailsComplete domain email-auth audit in one call: SPF with RFC 7208 lookup counting, DKIM selector pr...
MCP endpoint :https://dmarc-spf-audit.david-cyr.workers.dev/mcp · measurements and detailsFree Sparkplug B topic linting, UNS naming checks and AI-readiness screening. No API key.
Package npm :@dxpert/uns-tools · website · measurements and detailsFree no-login group availability poll; reads back the best meeting time for a group.
MCP endpoint :https://overlap.notdown-app.workers.dev/mcp · website · measurements and detailsFree no-key IP intelligence: geolocation, VPN detection, DNS, WHOIS, blacklists, breach checks
MCP endpoint :https://hackmyip.com/mcp · website · measurements and detailsArabic-first OCR, translation and document extraction. First call mints a free trial key.
MCP endpoint :https://api.auto-reader.com/mcp · website · measurements and detailsDart AI task management MCP with batch operations, DartQL selectors, CSV import, zero context rot
Package npm :@standardbeagle/dart-query · website · measurements and detailsFind the nearest public toilet worldwide. Read-only tools, no account, no API key.
MCP endpoint :https://wcway.com/mcp · website · measurements and detailsOne MCP for IDEs and bots: finds the right tool and runs it. Free, no key. Install: npx kloudy
MCP endpoint :https://kloudy.ai/mcp · website · measurements and detailsPlan and check marketing copy against the nine questions every reader asks. Free, no API key.
MCP endpoint :https://taxonomy.coppica.com/mcp · website · measurements and detailsFind government contracts, tenders and RFPs you can still bid on, in 193 countries. Free, no key.
MCP endpoint :https://freemcp.globalgov.io/mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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