31 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Recent ON-CHAIN Polymarket trades of one wallet (path param: 0x… proxy-wallet address), EACH wrapped in its own ed25519-SIGNED attestation (kind "onchain-activity"). Honest scope: Polymarket-whale on-chain activity — rea...
Cryptographically SIGNED resolved-outcome ATTESTATION for one Polymarket market (path param: 0x… condition id). Returns the SETTLED truth straight off the market row: resolved (bool), resolution (yes|no|null), resolved_a...
Use when an agent is about to give a user links or citations: send up to 10 URLs, and get back the status, redirect chain, final URL, title and hash of each, so a dead, moved or blocked link is caught first. A URL whose...
Signs a timestamped receipt for a file's sha256, proving it existed unchanged then. US$0.002 per call; POST the hash.
Verify an attestation produced by /notarize (either the EIP-712 or the EAS off-chain form) — pure compute, no network and no keys. Recovers the signer and reports whether it matches this service's attestor, whether the E...
Notarize a public URL: we fetch it ourselves and return a signed snapshot (final URL, HTTP status, content-type, sha256 of the body, server timestamp, upstream host) with TWO cryptographic attestations — a plain EIP-712...
Signed time attestation: timestamp bound to a payload hash, anchored in the cumulative Merkle log