"Free tools or resources that do not require an API" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Give your AI agent live public data from 70+ platforms: from TikTok, Instagram, YouTube, LinkedIn, X, Reddit, Amazon, Google and more, One key, one response format, 1,000 free credits every month.
Operated by SpendPreflight: sanctions screening and allow/hold/block preflight for x402 payments.
GrowVib is an AI-native SMM and social media growth marketplace for autonomous agents. Search and compare services across Instagram, TikTok, YouTube, Telegram, X, Facebook, Twitch, Spotify and 50+ other platforms. Buy followers, views, likes, subscribers, members, reactions and engagement. GrowVib provides canonical service classification, recommendations with reasons and quantitative trade-offs, live quotes, and accountless USDC purchases via x402 on Base and Solana.
Contract-change authorization for AI agents: preflight a change to an API or MCP contract, get a signed decision, and verify the receipt offline. Only a granted change can proceed.
Open AI models through one OpenAI-compatible API: chat, live model list, prices and cost estimates.
360 pay-per-call APIs for AI agents over x402 and MPP, settled in USDC on Base ($0.001-$0.25 a call, no account or API key). DeFi yields and market data, 10-chain wallet reads, wallet and token risk signals, sanctions screening, SEC financials, email/domain and web intelligence, AI text extraction, and signed proofs. Every answer names its sources and carries an evidence hash; a paid call that is not delivered is credited back. Built and run by UnyKorn LLC.
Buy private git repos and agent skills with USDC over x402. Read the manifest free, then pay.
Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.
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.
Facebook & Instagram data for AI agents: pages, posts, groups, ads, Marketplace, profiles, reels.
Auto-Apply That Ends on an Interview. Job matches, applications sent on the employer's own hiring system, employer-receipt tracking, per-role resumes, cover letters, interview prep.
Gold Coast property intelligence and due diligence for AI agents, renters and buyers.
Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.
teas.co.uk is an independent UK shop with more than 600 teas, coffees and hot chocolates from 60 brands. This connector searches the live catalogue in plain words, such as a strong breakfast tea or something caffeine free for bedtime, with filters for type, caffeine, milk, time of day, strength, pack size, price per cup and organic, Fairtrade or vegan labels, and shows live prices and stock. Open any product for tasting notes, a brewing guide and recipe ideas, or compare up to four side by side. Build a basket and get a secure checkout link: payment always happens on teas.co.uk, never in the chat, and the connector cannot place an order. Customers who link their teas.co.uk account (OAuth) can see orders and courier tracking, buy again, manage repeat deliveries, check reward points and start a return. teas.co.uk delivers to the UK, the Channel Islands, the Isle of Man and many European countries; prices are in pounds including VAT.
Paid web research, fact-check, page summary and page extraction tools for AI agents. Pay per call in USDC with x402 (Base or Solana). A failed call is not charged.
Threat intel for AI agents: IOCs, CVEs (EPSS/KEV), wallet sanctions and age, domain and URL checks.
Public chauffeur information, policies and anonymous price previews for Munich and MUC. On explicit customer request, prepare a binding unpaid offer using email OR E.164 phone, without an account. Customers review bound terms and explicitly confirm in Samuelz checkout. Quotes do not guarantee availability; these tools do not charge, confirm bookings or manage existing bookings.
ai-mail.sh gives your AI agent its own email address for $0.05, paid with x402 (USDC on Base), with no signup. Verification codes and links come back already extracted, and wait holds the request until mail arrives. Addresses are never reassigned: come back months later, pay again, same address. Receive-only, no tracking, and you delete it, it's gone. Works over HTTP or MCP.
Deterministic SHA, HMAC, Base64 and JWT decode tools with prepaid direct-USDC API credits on Base.
