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Free Google Search Console MCP: your real GSC, Google Analytics and keyword data for AI agents.

Free, open-source SEO crawler with 250 checks and an MCP server for AI coding agents.

Free remote MCP server: carves Western names into authentic Chinese name seals (seal-script PNG) with real Chinese names and the meaning of every character. No API key.

Free CC0 sound effects for agents: search 4,000+ sounds, get permanent hotlinkable MP3/WAV URLs, and generate new SFX from text. No API key.

Free game-theory negotiation advisor for AI agents, plus paid receipted sessions and agent memory.

Free spelling bee practice for AI assistants: spellings, pronunciations, definitions, language of origin, practice rounds at nine difficulty levels, winning words and Word of the Year. No key needed.

Free Vedic astrology (Jyotish) tools for AI assistants — Kundali birth-chart preview, daily Panchang, and Nakshatra profiles. Powered by star-meet.com.

Free remote MCP for Core Web Vitals metrics by CMS, CDN, and framework. No auth.

Free AI visibility and GEO audit: see what AI reads on your site and whether its answers cite you.

Free token swaps for AI agents. No API keys. Returns executable transaction calldata for 40+ EVM chains.

Free tariff and landed-cost MCP server: stacked MFN + Section 232/301/338 duty estimates by HTS code and origin, HTS lookup, import bans, tariff changes, and refund estimates.

Free social space for AI agents: read topics, start threads, reply and react in the Tavern Talk Bot Lounge. Bots are labelled and owned by humans.

Free remote MCP server for UK Corporation Tax: CT600 and Companies House deadlines, Corporation Tax estimate with marginal relief, late filing penalties and interest, director's loan (s455) tax, capital allowances, chargeable gains, long accounting period split and micro/small company size check. No sign-up or API key.

Free, no-API-key network lookups for AI agents — IP geolocation, DNS, WHOIS, HTTP and SSL/TLS certificate checks, and full domain health reports.

Free keyless gapper scanner — the Warrior Trading "5 pillars" low-float momentum screen. Finds cheap small-cap stocks gapping up hard on high relative volume with a news catalyst; auto-picks premarket (4:00–9:30 ET) or after-hours (16:00–20:00 ET) tape. No API key required.

Free, read-only audit of any website's marketing tracking from its public URL, with no account access or API key: Google Tag Manager, GA4, Google Ads, Meta Pixel, TikTok, cookie banner, Consent Mode v2 and server-side tagging. Score out of 100 and prioritised fixes, report in French.

Free money calculators for AI agents from The Real Cost by NoBanks Nearby: credit card payoff, debt consolidation, loan cost by term, crypto trade cost and emergency fund, with the math shown and links to pre-filled calculators. Education only, not financial advice.

Free limited token risk check for Base/Solana tokens (tokensafe_free) plus info on optional paid x402 endpoints. Remote MCP: https://promptvault-x402.onrender.com/mcp. Rule-based, informational only, not financial advice.

Free public MCP for AI agents — 193 tools, 44 workflows. No API key. JSON Schema, semver, secrets scan, OpenAPI, cron, hash, regex.

Free public AI-readable real estate listing exchange. Five MCP tools to search, retrieve, and act on residential, commercial, FSBO and off-market listings.

Free, unofficial practice questions for four Claude certifications, plus an AI blog (EN/PL).

Free website, DNS, SSL and email-authentication checks from any AI agent. No account required.

Free read-only engineering calculators for DevOps, SRE, Kubernetes, cloud cost and infrastructure decisions

Free website traffic checker for AI agents: estimated monthly visits, traffic sources, top countries and side-by-side domain comparison. Hosted endpoint https://vaneform.com/mcp.

Free pre-signing gate for AI trading agents (PASS/BLOCK plus a signed receipt) and paid, evidence-backed checks: is this arbitrage real, is this token safe, is this quote fair, and how much can my size move.

Free hosted MCP for source-dated AI usage and e-commerce context. Three read-only tools expose public aggregates, dataset policy and the signed contributor contract. https://agents.seiche.info/products/wake/mcp

Free hosted changelog: agents can sign up, publish release notes, and manage a public changelog page + RSS via MCP (no email or CAPTCHA needed).

Free directory of 217 MCP servers for wealth management: search by need, get exact endpoints and client configs, and assemble practice stacks for workflows like onboarding or review-meeting prep. Read-only; no client data.

Free personal finance MCP server for budget management, investment projections, mortgage calculations, credit card payoff estimates, and net worth tracking.

Free, keyless real-time weather and 7-day forecasts for any city worldwide.