"Free tools or resources that do not require an API" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
AI-agent image generation: cohesive sets & illustrations. Resize a set or export it as icons.
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.
Plan, compare, price, generate, and recover AI video from compatible MCP clients.
Proofread live pages and sites for spelling, grammar, and placeholder text. Free: 2 pages a month.
App Store Optimization data for AI agents: keyword ranks, scores, competitors, charts
Find AI agent skills: public previews and source links. Read-only discovery; no account required.
Agent tools marketplace: Wallet audits, Notes, ETH + Base JSON-RPC. USDC on Base, no account.
Find AI songs in 24 languages, start a custom song on SongUp AI, and find browser audio tools.
AI job search across 90+ countries (employer career pages + ATS feeds — Lever, Greenhouse, Workday), plus resume tailoring, cover letters, job detail & dashboard. Hosted; OAuth sign-in.
Orbit is an MCP server that gives your AI agents a 4000+ tools, a shared memory brain and a live dashboard OS. Every agent reads active decisions, logs outputs to a searchable vault, and reports status in real time. 2-minute setup via MCP; works across Claude, ChatGPT, Codex, Cursor, Gemini, and Manus. Finally Agents work, agents that grow your business and bring you customers. https://orbitagents.xyz
Axons Mobility is AI fleet management software with Intelligence and MCP. Ask about your scooter, bike, car sharing or golf cart fleet in Claude or ChatGPT. This public server answers product, pricing and trial questions with 3 help tools (no sign-in). Inside your own workspace, MCP gives 40+ fleet tools with role-based access, and nothing changes until a person confirms. https://axonsmobility.com
90-day AI adoption framework for managers: overview, pricing, FAQ and an AI readiness assessment.
Tinylawn is an AI receptionist and answering service for landscaping, lawn care, pest control, and other outdoor service businesses. Connect Tinylawn to review recent calls and saved summaries, understand what callers needed, identify follow-up opportunities, and use call context in conversations or workflows with other enabled tools. Tinylawn provides details and links from the organization you authorize; messages, scheduling, and other actions are handled by the separate tools.
Signed sandbox verdicts on any artifact, plus an agent marketplace. No key, no signup, no payment.
AIcare 康护评估 MCP：7 个工具、22 类检测（13 类 live）。输出健康评估与康护建议，非医学诊断。
Find AI-isms with evidence and fingerprint a writing voice from samples. 3 of 5 free.
Free AI test helpers: injection inputs, OWASP mapping, release plans, response and tool-call packs.
Scores how well AI agents will use your API, 0-100, from its OpenAPI spec. Free and read-only.
20 blogging, brand-voice, copywriting, video and social skill products. 6 of 8 free.
