Docs
Documentation
The rule-based checks, the experimental assessments, the payment guard and the records, each with what it shows and what it doesn’t. The public API is at https://api.tanilo.io, free during beta, rate-limited, no key.
Rule-based checks
Deterministic checks
No model. Live through POST /v1/verify-facts. Checks over inputs you send give the same result for the same inputs; registry lookups depend on what the registry returns at the time.
Deterministic mode
All eight check types, the request shape and the act or halt gate.
Required fields
Check a record against the fields it must contain (json_schema_conformance).
Time window
Check a timestamp against an allowed interval (timestamp_validation).
Contract price check
Compare an offered price with the price terms you supply.
Spend cap check
Compare an amount with a cap you set.
Assessments and integrations
Assessments, payments and MCP
Assessing a claim (experimental)
Model-based assessments with /evaluate: what it returns, what it refuses, and its limits.
x402 guard
@tanilo/x402-guard 0.2.0: price, cap, asset and network checks before an x402 payment is created.
MCP server
npx tanilo-mcp for MCP clients.
Changelog
Dated releases, including the 2026-10-28 /evaluate input and failure-handling changes.
Records
Receipts, keys and anchoring
Verify a receipt
Check a signature offline against the published keys.
Anchoring
What an inclusion proof shows about when a payload existed, and what it doesn’t.
Receipt registry
Tanilo’s verification.v0.3 profile entry in the ERC-8210 Receipt Profile Registry.
Published keys (JWKS)
The production key set. Test keys are served separately.
Trust
Key history, defects and open items.
Receipt spec
Format, rules, conformance vectors and reference code.
Answers and reference
Questions people ask
What a receipt does not prove
A valid signature is about bytes, not about truth.
If the price changes after the check
What a check at one moment can and can’t tell you later.
Benchmarks
Historical measurements, dated and labelled with the pipeline they measured.
Article 12 guide
Educational guide to the EU AI Act record-keeping article, and what receipts do and don’t cover. Not legal advice.
Incident record, August 2026
The full record of canned verdicts and what changed.
IETF Internet-Draft
An individual submission. Not adopted or approved by the IETF.