"Web search services that don't require an API key" matching MCP connectors:

500+ pay-per-call tools + skill packs. USDC + USDG on 12 chains, or free via proof-of-work.

Fourteen paid x402 and MPP tools for web data, payment preflight, audits, DeFi, and work discovery.

Curated, probe-verified directory of paid x402 APIs. Agents check it before spending money.

Specialist tools for any job — a lead, an image, a song, live data, and more.

Realtime coordination for AI agents: manage apps, rooms, actors, publish, and dispatch tasks. Visit https://nolag.app and setup your account.

Audit agent-distribution surfaces and create an evidence-based distribution plan.

MCP server for agent-run URL A/B testing. Create projects, allowlist domains, launch URL experiments, track conversions, and retrieve performance reports for customer-owned sites.

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

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.

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.

AI agent infrastructure: dedup, cost prediction, validation, governance, failure intelligence.

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

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.

Triptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base.

Route URLs for AI agents before fetch or browser rendering.

Read-only founding beta. No mutations, credentials, payments, or delegated authority.

Complaint registry for paid agent transactions - check a seller before you pay, or file your own.

Agent-native launch platform and tool directory: search, alternatives, trending, launch via MCP.

Self-hosted MCP gateway: turn any API, database or MCP server into AI connectors — no code.