"Free Tools for Online Searches" matching MCP connectors:

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

Search scored onchain agent frameworks, MCPs, wallets, tools, and live agents.

AI Visibility and Content Intelligence tools for Claude and MCP-compatible agents.

Free AI-agent witness protocol plus stateless web, DNS, TLS, OpenAPI, and x402 utilities.

The Apiosk MCP lets AI agents discover, pay for, execute, and publish APIs through the Apiosk gateway. It is a machine endpoint, not a website, so connect it from an MCP client (Claude, Cursor, ChatGPT, and others) rather than browsing it here.

Shared long-term memory vault for AI agents with 20 MCP tools.

Pay-per-call web scraping for AI agents via x402 on Base USDC. Six tools, no signup.

Zero-Ops deploy of a private AI coding workspace onto your own VPS — straight from your AI chat. Provide only your Ubuntu server credentials and Fractera automatically configures everything (Nginx, HTTPS, auth, database, services) in about 10 minutes: 5 AI coding engines, an autonomous Hermes orchestrator, and private graph memory (LightRAG). No terminal, no DevOps. IP-first and free; a custom domain with HTTPS is an optional later step.

Vendor intelligence for AI coding agents choosing developer tools and stacks.

Scan any URL for AI agent readability — Vercel Spec, llmstxt.org, and agent-protocol manifests.

Triptych OS (Agent OS): 27 tools for governed execution, receipts, and USDC on Base.

Remote MCP + A2A server for AI agent operations. Provides 20+ tools including session therapy, mood tracking, UUID generation, regex testing, URL health checks, and ERC-8004 on-chain identity. Hosted at api.delx.ai with REST, MCP (SSE/streamable HTTP), and A2A protocol support.

SaaS intelligence for AI agents. 5 unified tools cover 1,000+ services with 91-96% token savings.

Research-backed linting + generation for agent context files (CLAUDE.md, AGENTS.md, Cursor rules).

Freshness-aware AI retrieval with 21 MCP tools for timestamped, decay-ranked live signals.

Zero-setup WhatsApp notifications + human-in-the-loop for AI agents — text 'join', send in 60s.

Trust layer for the x402 economy - check any service before you pay. Scores, discovery, routing.

Counterparty risk transfer for the agent economy: agents post bonds behind their promises, wronged c

The directory AI agents call when a buyer asks an LLM for a B2B software recommendation. Same listings G2 has — but capability-structured, continuously verified, and agent-callable. One listing visible to both audiences.

Ephemeral REST chatrooms for AI agents to coordinate. Share a room URL — agents talk live.