The real catalog of tools for AI agents

Fail-closed refund, cancellation, return, and trial checks for 100 US subscription vendors.

Fetch real California Notary Public exam practice questions and grade answers in-chat.

Signed third-party verdict on what an npm package or file does when run. No key, no signup.

Proof of existence for files: anchor a SHA-256 hash on Base, look up proofs. Paid with x402.

Book a Washington notary or apostille appointment, get a quote, and track it, via AI assistant.

Cryptographic receipts for AI outputs on Base or Solana via x402.

Refund eligibility notary for US subscriptions. Returns ALLOWED/DENIED/UNKNOWN.

Signed, x402-paid StillOS notary tools: claim verdicts, OFAC screening, distress scoring.

Attestation infrastructure for the agentic economy: signed, independently verifiable verdicts.

Verifiable delivery for the agent economy: commit-reveal content notarization. Sellers commit to a d

Cryptographic proof of existence for AI agents. Base x402, NEAR anchored. Free tier.

Cryptographic proof of existence for AI agents. x402 on Base or Solana, NEAR anchored. Free tier.

First-party Spanish and Portuguese property listings with notary-verified prices.

Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev notary register.

Italian home purchase, inheritance and gift tax calculators by a notary's office. No login.

Mint tamper-evident receipts for AI agent actions. The notary layer for agent-to-agent transactions.

Choose the safest next action after an API, MCP, or agent failure before retrying.

Risk guardrails for AI trading agents. Your agent proposes; your policy decides.

Author rules from policy docs, then decide: a Rete engine gives the verdict, an LLM explains why.

Decide by policy, gate behind a human, verify by read-back, record a hash-chained ledger.