"Free Network Graph Visualization Tools (No Account Required)" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Query your Postgres from ChatGPT or Claude without exposing the database or handing over credentials. Run npx boltschema connect next to your database and it dials out over HTTPS — no inbound firewall rule, no open port, works with localhost and VPC-private databases. Read-only is enforced by a SQL guard, a Postgres READ ONLY transaction, and a scoped role generated for you.
Persistent knowledge graph for AI-augmented teams. Store decisions, findings, and standing rules across agent sessions with semantic search and typed connections. Includes cross-session memory, audit trail, workspace isolation, and secret detection. Built for teams running agents that need to remember. Free until launch with team tier as default, anon trial available.
PDF, image, video, OCR, screenshot, SQL, QR and text tools for agents. No API key, no signup.
AMZScout Skill + MCP gives AI agents live access to real Amazon marketplace data across 14 Amazon marketplaces. Analyze any ASIN, validate product ideas, research niches, compare competitors, discover profitable keywords, and build data-driven PPC strategies using trusted Amazon insights instead of AI assumptions. Works with Claude, ChatGPT, Cursor, and any other MCP-compatible AI client. To connect, you'll need an AMZScout API plan and authorize your account. Get access and view pricing here: https://learn.amzscout.net/amazon-product-api-for-ai-agents
Read and edit DB Planner database schemas (DBML/SQL), Mermaid diagrams and board layouts from any MCP client. 40 tools with annotations and output schemas. OAuth sign-in, with read and write as separate scopes enforced server-side.
The agent-native cloud: database, functions, AI, storage, computers. 50 tools, one API key.
Connect LLM tools to your Algolia account with user-scoped access for internal workflows.
DBRE-grade SQL analysis inside any MCP client. No connection. No install. Paste a query.
Build, validate, deploy — HTTP APIs, cron jobs, webhooks and MCP tools — from your AI client. Air Pipe MCP token as a bearer credential, e.g. 'Authorization: Bearer <token>'. Create one at https://app.airpipe.io/
RedM / RDR3 docs MCP server: native lookups, semantic search, VORP, RSGCore, oxmysql.
Find novel, statistically validated patterns in tabular data — hypothesis-free.
Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.
Comprehensive PostgreSQL documentation and best practices, including ecosystem tools
EQ scoring plus a read-only Storelayer matcher and guarded self-install; no website credentials
Monetized graph answers via named Cypher queries — Tollbooth DPYC operator
Lists a company's filed documents at JUCESP by NIRE. Platform-hosted, no credentials, pay per query
Your Supabase account in natural language: run SQL, apply migrations, manage tables, storage, edge f
Forklift & aerial-lift compliance records for warehouses — read-only demo tools.
Zero-key temporary JSON database for agents: one tool call, no signup, no OAuth, no API keys.
Permission before writes. Gravity→DENYs→Session $0.25. Pilot $100; Gateway $299. Probe free.
