30 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.
Write an on-chain attestation (Ethereum Attestation Service on Base) that binds a call you paid for to the bytes you received: the tool slug, sha256 of the JSON response, the settlement chain and transaction, the payer,...
Verify a Rubric decision attestation (DAR/0.1): Merkle inclusion proof, HCS anchor ref, service signature status, drift flag. Pass agentId instead for a chain-check continuity report. Not found means no charge. $0.10 eit...
Issue a signed, independently verifiable credential that a business domain passed a trust check — returns verdict, trust_score and domain_age. Input: ?domain=
Evaluate a deliverable (text, JSON or URL) against a job spec (free text or JSON criteria): verdict pass/partial/fail, score, checked criteria, and a signed EIP-712 attestation whose digest is the ERC-8183 complete/rejec...
Independently verify an agent's output before you pay: an invoice or any deliverable, checked against your JSON Schema and rules like sums matching totals. Pass/fail, % passed, fix hints and a signed receipt. $0.02 USDC,...
HMAC-signed readiness attestation pack for an RWA score/dossier — auditable proof artifact for desks. Pay $0.15 for a signed trail legal can point to. Not a notary act or trade authorization. Task: Call when legal/audit...
invinoveritas /signals/full — a live Hyperliquid perps read, recomputable per coin from the raw metrics we return (funding + 24h delta, basis, open interest,
Spot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get what this observatory already holds on it, signed: corpus rounds and verdic...
Ysaere Agent Page Stamp — $0.02 USDC, no account needed. Input: {"url":"https://example.com/page"}. Fetches that public https page and returns a signed hash of the bytes. The page is not stored. A blocked or failed fetch...
Free during launch: check AI agent output before you accept or pay for a deliverable against your JSON Schema and rules. Pass/fail, % of checks passed, fix hints, signed attestation and receipt. $0.02 USDC after, x402 v2...
Signierte Preis-Attestierung: Route, Datum, Preis, Quelle, Zeitstempel und Plausibilitätsprüfung (Ed25519).
Crypto Market Data Integrity Attestation for agents and trading systems. Validate caller-supplied crypto market observations for causal timing, freshness, gaps, sequencing, identity consistency, and cryptographic record...
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident reference data for age...
Signed verdict: is this action (action, amount, currency, counterparty, payment instrument) inside the agent's mandate and is the credential active? Evaluates the reserved mandate fields; lists the fields it did not eval...
Attest a decision: sign (input_hash, output_hash, decision) yourself, or omit the signature and the treasury signs — then dual-chain anchor. Free re-verify at /v1/attest/verify. $0.01 USDC.
Anchor a 32-byte hash to Base + Solana mainnet — $0.005 USDC
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...
ERC-8004 on-chain reputation of any AI agent wallet on Base, read from the ReputationRegistry and summarized by RSoft Bank: total feedback entries, positive and negative marks and a 0-1 score ratio. Call it before paying...
x402 ping and test payment: can my wallet pay an x402 API? Pay a fraction of a cent in USDC on Base and get a signed receipt back, proof that your wallet and x402 client complete a real paid call end to end. Use when an...
Verify an attestation token issued by evaluate_deliverable: recovers the EIP-712 signer, checks it is our evaluator, returns verdict, score, jobId and the bytes32 reason.
Signed integrity, provenance and freshness receipt for AI-agent JSON
Attach the settled outcome to a signed call once the market resolves. Returns BOTH envelopes: the original live-call and a resolution envelope that binds its content_hash (call and outcome welded together). Idempotent —...
Commit a SIGNED live call: an ed25519-signed prediction (yes/no) on an OPEN Polymarket market, chain-linked (prev_hash) and content-addressed (sha256). Refuses resolved/closed markets — the signature must precede the out...
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...