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298,860 tools. Last updated 2026-07-14 17:25

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

Matching MCP Servers

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    Provides tools for AI-powered graph analysis, including relationship extraction, adjacency matrix creation, and network centrality calculations. It enables users to perform complex structural analysis and generate interactive D3.js visualizations from structured data.
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    Provides access to the LinkedIn Sales Navigator API without requiring browser cookies for authentication. It enables AI assistants to interact with sales data and various utility endpoints including TV Maze and deck of cards.
    Last updated
    MIT

Matching MCP Connectors

  • Free AI agent blueprints for procurement and onboarding. No signup, no API key.

  • The Graph MCP — indexed blockchain data via subgraph GraphQL queries

  • Search Semantic Scholar's citation graph to discover papers on a topic and add them to your news briefs.
    AGPL 3.0
  • Log into Warp with email and password. Saves credentials locally, enabling booking tools when authentication is required or no key is configured.
    MIT
  • Retrieve the Toleno Network development roadmap with completed phases, current progress, and upcoming milestones like Solana deployment and DEX listing.
    MIT
  • Probe the Prufa API and MCP server to verify connectivity and availability. No token or authentication required for this health check.
    Apache 2.0
  • Retrieve a static sample cost estimate for a colonoscopy in Connecticut to verify API connectivity and inspect the response format. No API key required.
    MIT
  • Retrieve trust mesh graph data: nodes (entities and agents) and edges (reviews and favors). Optionally center on a slug for an ego-network view.
    MIT
  • Set node colors in a graph visualization based on column values, using categorical mapping or continuous gradients to highlight patterns in network data.
    MIT
  • Verify hyperD API health by reviewing network status, payment facilitator configuration, backend key wiring, and cache statistics. No wallet required.
    MIT
  • Retrieve the most recent data breach from HaveIBeenPwned without requiring an API key. Get immediate access to breach details.
    MIT
  • Obtain a Sign-In with Ethereum (SIWE) challenge for a wallet address, the first step to generate a free API key using only a wallet. No browser or email required.
    MIT
  • Verify an AI capability's trust level before use. Returns certification status, trust score, grade, tier, and supply chain status with no API key required.
    MIT
  • Retrieve details of any vulnerability or exploit by its ID using the Vulners database. Supports CVE, EDB, and GHSA identifiers without an API key.
    MIT
  • List insurance carrier keys (aetna, cigna, bcbs, medicare) for coverage tools. Use it as a free API key sanity check.
    MIT