"File system requirements: mounted directory, persistent state, and full R/W access" matching MCP connectors:

Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.

Serves your design system and coding standards to coding agents, so they stop guessing.

Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.

Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.

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

Search domain availability and pricing, straight from chat, then open a link to register.

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

Neutral, verification-gated MCP directory of Japan construction contractors (KIRA-audited).

Cite and independently verify Bitcoin-anchored construction-estimate audit records.

Paid-verified directory of x402 APIs — we pay endpoints real USDC and confirm settlement on-chain.

Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools.

DXF and PDF/X-4 for AI agents: structured facts, PNG renders, an interactive in-chat viewer.

Author and validate Calaf workspace seeds against the app's real importer. No account needed.

Independent pre-transaction audit for construction estimates. Free, and every verdict recomputes.

Uptime monitoring: create and manage HTTP, API, SSL, ping, port and domain checks

Discovery, OAuth, project operations, and exact project MCP handoff for Spala backend projects.

Buy and manage travel eSIM data plans in the conversation. Pay by card (Stripe) or USDC over x402.

Twenty-two paid x402 and MPP tools for agent discovery, payment safety, data, and DeFi.

Find your AI agent's likely failure mode, get runtime settings, and clarify ambiguous prompts.

Crevio's MCP server lets an agent run a real online business, not just read from one. It exposes a delegation surface (ask_crevio, start_task, wait_for_run, send_message, resolve_approvals) plus code_search and code_execute for calling the full Crevio REST API - products, customers, orders, email, socials, and sites.