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One post-quantum-signed AI decision attestation, anchored to Hedera mainnet HCS. Send {agentId, data}; receive {attestationId, verifyUrl, settlement}. ML-DSA-65 (FIPS 204) signature, free public verification. Payment verified before mint, settled after — a failed mint is never charged. Audit-ready e

Batch attestation for agent decision streams: up to 1000 leaves under one ML-DSA-65 signed Merkle root, anchored to Hedera mainnet HCS. Per-leaf attestation IDs with free public verification, plus a paymentReceipt opening the commitment sealed in each record. ML-DSA-65 (FIPS 204) post-quantum signed

Batch attestation for agent decision streams: up to 5000 leaves under one ML-DSA-65 signed Merkle root, anchored to Hedera mainnet HCS. The lowest per-record price TenPrint offers — tamper-evident audit trails at agentic-telemetry scale. Post-quantum signed; audit-ready.

Attested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdict with reasoning and the specific clauses applied, then binds hashes of all three inputs into an ML-DSA-65 signed, Hedera-anchored record. Evidence the policy was evaluated agains

Signed monthly x402 spend statement for one agent: totals, per-payment lines, Merkle root over the full ledger. The statement is itself an ML-DSA-65 attestation anchored to Hedera mainnet HCS. Wallet-bound. Free client-side renderer at /statement.html ML-DSA-65 (FIPS 204) post-quantum signed, Hedera

Attested LLM inference: gpt-4o-mini chat completion plus a post-quantum signed, Hedera-anchored attestation binding prompt hash, response hash, exact model version and timestamp. Evidence of which model said what, when. Max 8K prompt tokens, 1K output. ML-DSA-65 signed; audit-ready evidence.

Attested sanctions and export-control screening in one call: OFAC SDN and Consolidated, UN Security Council, UK OFSI, EU financial sanctions and BIS lists. Returns per-list results with exact list file hashes and query hash, ML-DSA-65 signed and Hedera-anchored. ML-DSA-65 (FIPS 204) post-quantum sig

Attested verification-event custody: seal the fact that an identity/liveness/KYC check ran — method, provider, result — without the subject's identity ever reaching TenPrint. Caller submits an opaque subjectRef; the sealed record binds event to outcome. ML-DSA-65 (FIPS 204) post-quantum signed, Hede

Attested work record for mixed human/robot/agent crews: seal who (or what) did which action, the outcome, and any deviation from plan — the operational log entry that survives an incident investigation or insurance dispute. ML-DSA-65 (FIPS 204) post-quantum signed, Hedera-anchored, audit-ready evide

Audit of any TenPrint attestation that you can re-check yourself: ML-DSA-65 signature check, HCS sequence lookup and direct mirror-node confirmation. Returns a signed verdict carrying its own attestation ID — a verification you can cite. Verifies post-quantum signed, Hedera-anchored evidence.

Bundle of six attested Hedera network facts in one call: exchange rate, gas fees, supply, nodes, throughput and TenPrint topic state. Each response carries the attestation ID of the served snapshot.

One attested Hedera network fact, refreshed every 60s, carrying the attestation ID of the served snapshot. Keys: exchange-rate, gas-fees, supply, nodes, throughput, topic-state. Free menu at /v1/x402/hedera-facts

Structured feed of regulatory changes affecting AI systems: jurisdiction, instrument, change type, effective dates, comment deadlines. Curated by the team behind The Attestation Brief; every item attested on ingest.

Tamper-evident operating history for any AI agent attesting through TenPrint: record count, first-seen date, continuity days and recent activity — computed from HCS-anchored attestations that cannot be backdated. ML-DSA-65 (FIPS 204) post-quantum signed, Hedera-anchored, audit-ready evidence.

Attested x402 payment history for any buyer wallet: settlement count, first/last seen, total spent, services used, distinct sellers observed — from an append-only settlement ledger, ML-DSA-65 signed and Hedera-anchored. Evidence, not opinion: entries are append-only and Hedera-anchored, so a later r

Attested pre-transaction counterparty check for any Base/EVM wallet: exact match against OFAC SDN digital-currency addresses, on-chain profile, and a transparent clear/caution/flagged verdict with reasons — ML-DSA-65 signed and Hedera-anchored.

Index of free demo endpoints — try any paid service against sample data before paying.

Free demo of one paid service against sample data. No payment, no API key.

Free menu of available attested Hedera network fact keys.

Free public verification of any attestation: ML-DSA-65 signature validity, HCS anchor sequence, mirror-node URL. No payment, no API key — evidence must verify without permission.

Look up an attestation by the SHA3-256 hash of its payload. Free public verification of post-quantum signed, Hedera-anchored attestations; audit-ready.

Human-readable audit portal for any attestation record. Covers ML-DSA-65 post-quantum signed, Hedera-anchored attestations.

Attested pre-transaction counterparty check for any Base/EVM wallet: exact match against OFAC SDN digital-currency addresses, on-chain profile, and a transparent clear/caution/flagged verdict with reasons — ML-DSA-65 signed and Hedera-anchored.

Encrypted evidence retention: store a client-encrypted agent session envelope for 7 years, hash-bound to an attestation you already anchored. TenPrint receives ciphertext only and holds no key that opens it. Storage and expiry destruction are both attested on Hedera. Returns a one-time claim token t

C2PA verdict attestation Tier A. POST raw asset bytes (max 25MB, content-type sets format). TenPrint runs Google Credentio validation in an isolated sandbox and anchors the verdict to Hedera with an ML-DSA-65 (FIPS 204) post-quantum signature. Durable, independently verifiable proof that asset X val

C2PA verdict attestation Tier B. Run Google Credentio locally, submit the verdict + asset hash + trust list hash + optional eip191 client signature. TenPrint countersigns and anchors the receipt: attests the assertion was made and by whom, not verdict truth. Preserves Credentio's local-first privacy

Attested AI token verdict for Base. POST a token contract address, get an AI risk verdict (score 0-100, stance, named risks, plain-language summary) grounded in live onchain metadata and DEX liquidity/volume data. Unlike unattested verdict APIs, the full record — input facts, model identity, verdict

Attested spot price for a Base-mainnet asset pair, read live from Chainlink aggregators via eth_call (no cached feed, no third-party price API in the trust path) and sealed with an ML-DSA-65 (FIPS 204) post-quantum signature, anchored to Hedera mainnet HCS. Staleness beyond 25 hours is flagged, neve

Same live Chainlink spot price as attested-price, plus the raw AggregatorV3Interface round tuple, exact eth_call replay instructions, and the attestation inlined with a disclosed commitment opening (salt + plaintext, never the encryption key) so a third party can independently recompute the payload

Historical Chainlink spot price as of a requested timestamp, found by walking the AggregatorV3Interface round history on Base mainnet (binary search over round IDs, not an off-chain time-series database). Requests before the earliest indexed round, in a gap in round history, or in the future come ba

Spot price alias for attested-price: same live Chainlink read, flattened response shape, priced for high-frequency polling. Every price still carries an attestationId you can verify. ML-DSA-65 (FIPS 204) signed, anchored to Hedera mainnet HCS. Operated by TenPrint.

TenPrint Market Intel: the weekly analyst calls (BUILD/AVOID/WATCH/RISK) for x402 builders: which agent-service categories show real paying demand, which patterns are wash, plus headline market numbers. Machine-drafted from on-chain settlement collection, wash-filtered and evidence-cited; the weekly

Weekly x402 market analytics on Base: operator-level facilitator concentration (HHI), payer cohorts and repeat rates, seller birth/death, repricing events, ticket-tier mix. On-chain settlement collection, exchange-infrastructure filtered; the weekly report sha256 is attested and returned with the da

Daily x402 market report for Base USDC: settlement count, gross volume, unique sellers and the full per-day breakdown, Hedera-anchored. ?date=YYYY-MM-DD for a past day; no report for the date means no charge. Free headline at /v1/x402/market/summary. Operated by TenPrint.

Free headline of the latest daily x402 market report on Base: date, settlements, gross USDC volume, unique sellers, and a pointer to the paid full report.