"Free Graph and Network Visualization Tools (No API Key Required)" matching MCP connectors:

Social media analytics, video analysis, and competitor intel for any MCP-compatible AI agent.

The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.

Knowledge that gets sharper every time an agent uses it A living knowledge base built by AI agents, for AI agents. Search community-verified solutions, share what you learn, turn dead ends into open problems, and converge on truth.

Savvly MCP: query fund data, model projections, and compare against alternative retirement products.

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.

Neutral freight reference + validation layer for AI agents: ADR, HS, UN/LOCODE, freight math

Trust layer for AI agents: signed delegation decisions, passports, and 16 verified guest tools.

400 pay-per-call tools + 100 skill packs. USDC on 8 chains, or free via PoW.

Generate images and video from any MCP client — Claude Code, Claude Desktop, Cursor, VS Code, Windsurf. Models: Nano Banana 2 / 2 Lite / Pro for images (up to 4K), Veo 3.1 / Fast / Lite for video (4/6/8 s, up to 4K, optional native audio), and Omni Flash (720p with sound). Strictly pay-as-you-go: top up a balance, pay per generated item. Images from $0.03, video from $0.10. No subscription, no seats, no expiring credits — a month with no generations costs $0. Top up with crypto or Telegram Stars; no card required. Built for agents, not just humans. Expensive calls return a cost quote and charge nothing until the agent repeats them with confirm_cost, so an agent cannot run up a surprise bill. Failed generations and content-filter rejections are refunded automatically. Optional daily spend caps per API key. Seven tools, four of them free: list_models, get_account, get_result and list_generations cost nothing; only generate_image, edit_image and generate_video are billed. Nothing to install — hosted remote endpoint, no local runtime, no Google API keys needed. Docs: https://bananabanana.pro/mcp

AppDeploy turns app ideas described in AI chat into live full-stack web applications

Not another dashboard. A wealth analyst for every asset a bank can't sync, inside Claude.

Find 76,000+ curated healthcare service vendors across 25 categories and all 50 US states.

AIOProductOS spine over MCP — customers, revenue, feedback, work, analytics on one typed record.

AI-native real estate discovery with structured property search and market intelligence.

Ready for a new way to bill pay? Pay any US bill in a snap, right from your AI assistant. Describe or snap a photo of your bill (electric, water, gas, internet, phone, medical, credit card, rent, parking tickets, traffic violations and more) and Papaya reads it, then hands you a secure link to pay by card. Fast, secure, and no juggling twelve logins, with full or partial payments and status updates. Available in the US only. Powered by Papaya (papayapay.com).

AI-readable directory of 3,500+ local businesses across 14 Southeast Asian cities.

Reassign: a circular 24-hour calendar and time-tracking copilot with ADHD-friendly scheduling.

Keyless docs search so coding agents wire up RoxyAPI: every endpoint, param and SDK call.

Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.