The real catalog of tools for AI agents

What a domain publishes for AI agents: ai-catalog.json, llms.txt, agents.md, robots.txt rules. Free.

Neuronto ARD Registry: one search across every public ARD registry + 200,000+ verified MCP tools

Search a public index of agents, MCP servers and skills found on the open web. Free, no auth.

Track your brand's share of voice in ChatGPT, Claude, Perplexity and Gemini. Pay per check.

Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.

Budgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP

Free dual MCP+agent registry. Probe Live, free demo, Kernel/Loop. Self-list + dual strategy.

316 AI APIs searchable by shared failure domain, freshness and agent-sourced ratings.

Six paid URL-intelligence tools for autonomous agents and agent swarms.

Read-only machine payment preflight using dated MEO evidence, with explicit unknowns.

Preflight MCP OAuth compatibility with structured evidence and remediation guidance.

Preflight checks for agent repository contributions, bounty work, and Base payments.

Deterministic preflight for FactoryTalk View tag and alarm CSV imports before re-import.

Spanish company registry (BORME): companies, directors, links. Needs a free work-email account.

Caller-specific static MCP capability fit evidence. No live probing; caller owns the decision.

Evidence-backed UBL, PDF, and image invoice checks before approval or payment.

Inspect and validate an x402 endpoint before an autonomous agent spends USDC.

Read-only EU import preflight: EORI, TARIC candidates, measures, low-value cost. Evidence only.

Deterministic MCP, JSON Schema, and SemVer preflight via Agothe's public MUV scope.

Read-only EU energy-label preflight: supplier-declared EPREL records. Evidence, not advice.