The real catalog of tools for AI agents

Verify timestamp proofs offline, anchor hashes through ProofLedger, keep agent run receipts.

Notarize, e-sign, and verify identity with the Proof API. Unofficial; not affiliated with Proof.

Verify whether a supplied public source currently supports one atomic factual claim.

One API, all things verified — control, delegation, human approval, anti-impersonation.

Cryptographically anchored evidence for agents: verified run receipts, proof-gated settlement.

Prove a real, unique human performed an action; mint a signed, verifiable Proof-of-Human credential.

Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.

Read your AI-written daily briefing and retune the filter behind it: feeds, newsletters, topics.

Score, seal and prove AI decisions in Bitcoin, plus 739 compliance checks, free to verify.

Verify AI work against criteria and get signed receipts. From Spoolis, guarantees for AI work.

Signed, publicly logged records of what your AI agent did, with proofs anyone can check offline.

Verify emails, validate phone numbers, look up carriers and score IP addresses.

Signed proof of web observations for AI agents: Ed25519 proof packets for any URL.

Verify VerixID proof-of-existence records and optionally prove ownership.

Verify a public listing URL and return source-supported facts or explicit fail-closed states.

Verify Attest agreements, stamp codes, receipts, proofs and SHA-256 fingerprints, with no sign-in.

Add a text box that proves a human typed it, not AI. Code for any framework; verify proof tokens.

Verify signed ALEX Evidence Packages. Fails closed on signature or schema errors.

Check emails for valid syntax, MX records, disposable and role addresses and typos. No SMTP check.

Verify a place in the Netherlands: a verified local hand checks it, you get a sealed receipt.