"MCP servers that don't require API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
WHOIS, RDAP, DNS, IP / ASN / CIDR and Web3 name (ENS, Unstoppable, Handshake) lookups. No API key.
Private English speech-to-text for AI assistants. Transcribe a public HTTPS audio link, a one-time file upload, or an inline clip, with optional word timestamps and speaker labels. Audio is processed in memory on our own hardware in North Carolina, then erased, without training on recordings. Requires a Loquela Remote account and subscription or prepaid minutes. Beta service for US customers; English audio only. Docs: https://docs.getloquela.com/remote/mcp
Run Python, Java, C, C++, C#, Go, Rust and 39 more languages, each run in a fresh, offline sandbox.
The most accurate web access API. Stop getting blocked.
Manufacturing cost of CNC and sheet-metal parts from STEP or DXF: process plan, times, 10 lot sizes.
Pay-per-call MCP tools for agents, settled with x402 (USDC on Base mainnet). 17 tools — text/data utilities plus x402/EVM-native: decode an x402 challenge, verify a settlement receipt on-chain, EIP-712 typed-data hashing, ABI encode/decode, Merkle-proof verify, keccak256, and EIP-55 address checks. No API keys.
Data Parrot brings AI revenue analysis of your HubSpot data into your AI tools.
UK solar PV and heat pump calculators that follow the published MCS methods. Open, no key.
Fact-check LLM outputs with cited sources. API key: aihcc.cloud/keys.
Keyless storefront readiness probe linking a Store Guard audit, plus dispatch estimates and quotes.
Operated by SpendPreflight: sanctions screening and allow/hold/block preflight for x402 payments.
Track and manage how your brand appears in AI answers: rank, mentions, sentiment, share of voice.
Manage social media with AI using RepeatPost MCP. Create and schedule posts, generate captions, manage drafts, publish content, create branded graphics, and organize media across connected social channels. Built for creators, marketers, agencies, and businesses, using AI assistants to automate social media workflows.
YouTube transcripts, comments, video details, heatmaps, search, channels and playlists.
Search EU public tenders from TED and national portals by CPV code, country, buyer or value.
Real-time Google Flights fares for agents. Three things people do with this server. Scan for deals: one call takes a date range and a list of destination airports, expands every combination server side, and returns each fare with Google's own low, typical or high verdict. Put live search in your app: flat JSON with a bookable link on every result, and round trips priced as paired legs. Run a 24/7 AI travel agent: add the server, sign in with Google, and schedule it. No ads, no sponsored content. You bring your own RapidAPI key, so every search is billed to your plan and never to anyone else's. Add https://flights.flightpowers.com/mcp , click Sign in, sign in with Google, and paste your RapidAPI key once on the page that opens. Scripts and clients without a sign-in button send the key as x-rapidapi-key on the same URL.
TikTok transcripts, comment sentiment by moment, AI breakdowns and director-level shot analysis.
Build agents to automate any background task. Works with your ChatGPT/Claude subscription.
Schedule posts to 10 social platforms and check drafts against hook rules learned from your audience
Read your EU age check stats: pass rate, the funnel, refusal reasons and breakdowns. Read only.
