"Free servers available for testing purposes" matching MCP connectors:
Matching Connector Tools:
290+ quality-scored API capabilities for AI agents across 27 countries via MCP.
Website QA for your coding agent: audit SEO, performance, security, accessibility over MCP.
SSRF-safe web intelligence: 4 outcomes, 43 paid x402 tools, 3 free tools and a URL preview.
Audit MCP configs and skill files for over-broad scope and injection risk. 6 of 8 free.
Dead-man's-switch for cron jobs & AI agents. Import a crontab to arm one silent-miss alert per job.
Anomaly detection API powered by physics simulation. Scan any data for outliers.
Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di
Measured latency, time to first token and uptime for ~45 AI inference APIs, by region.
Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev register.
Usage metering + SLA accounting for agent services (the meter behind x402 micropayments).
Compute-is-carbon energy/carbon ledger for agent work with Landauer-limit validation.
Free uptime monitoring: HTTP/TCP/TLS/DNS checks, cron heartbeats, status pages, incident tools.
Free anonymous website, DNS, email and TLS checks, plus read-only access to your monitors.
Free AI-powered DXP tools by Oshyn: GEO & Reliability scan, Choose New DXP and Estimate DXP Budget.
Monitoring for agencies — uptime, SSL, DNS, blocklists, AI visibility, MCP health. 8 no-auth tools.
Continuous website testing by Validoria — monitor security, SEO, performance, and accessibility.
Check real-time uptime and incident status for 285 APIs and cloud services.
Live status for 172 cloud and SaaS vendors from their official feeds. Is it you, or is it them?
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.