touchstone.locomot.io

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://touchstone.locomot.io

• GET/unit$0.001Deterministic unit conversion reproducing NIST SP 811 exact factors (length, mass, volume, energy, power, pressure, force, area, speed, data, angle, frequency + affine temperature). Every answer signed. Free sample, no payment required: GET /play/unit
• GET/readability$0.001Deterministic readability scores (Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI) over published formulas. For long text use POST. Signed.
• GET/proofread$0.001Deterministic, rule-based proofreading flags — passive voice, adverbs, wordiness, filler, repeated words, whitespace, a/an, punctuation, sentence length, capitalization. Each flag carries an offset + suggestion. For long text use POST.
• GET/timestamp$0.001Verifiable timestamp (trustless proof-of-existence / freshness proof): bind a hash to a drand round for an anti-backdating receipt — proves data existed no earlier than a public instant, with no trusted timestamp authority. Privacy: stamp an opaque sha256 digest.
• GET/time$0.01Deterministic time/timezone truth: DST-aware zone conversion, transition times, business-day & holiday math, epoch<->ISO. Free sample, no payment required: GET /play/time
• GET/diff$0.001Exact structured diff. mode=text -> unified diff + line counts; mode=json -> an RFC 6902 JSON Patch (RFC 6901 pointers) that round-trips a->b; mode=words -> inline word-level opcodes. For large inputs use POST. Every answer signed. Free sample, no payment required: GET /play/diff
• GET/syntax$0.001Deterministic syntax validation — does this JSON/YAML/TOML/Python/regex parse? Valid/invalid + error location from the canonical parser. For long source use POST. Free sample, no payment required: GET /play/syntax
• GET/sealed$0.005Timelock encryption (tlock / encrypt-to-the-future): seal a payload toward a future drand round — undecryptable by anyone, including us, until that round lands; or open a landed seal. For sealed-bid auctions, commit-reveal, scheduled secrets, dead-man switches. age-armored, interoperable. Free zero-knowledge inspect at /sealed/inspect.
• GET/door$0.002Before you pay an x402 door, check it against its catalogue entry. A nightly probe of EVERY host in the x402 index (1,618 hosts, 15,227 listings, 100% coverage): the live 402's real payTo and price versus what the catalogue claims, plus dead and self-contradicting hosts. 28.6% of listings sit on a host the catalogue gets wrong — one names one payee and pays another across 965 listings. Free sample, no payment required: GET /play/door
• GET/field$0.002Deterministic WMM2025 magnetic field (one location/date). Free sample, no payment required: GET /play/field
• GET/prosody$0.001Deterministic phonetic rhyme (perfect + scored slant), pronunciation, syllables, scansion, homophones — from CMUdict. Free sample, no payment required: GET /play/prosody
• GET/sky$0.003Deterministic ephemeris snapshot (one location/time). Free sample, no payment required: GET /play/sky
• GET/verify/sig$0.002Recover who signed a message (ecrecover, EIP-191 personal_sign). For EIP-712 typed data use POST /verify/sig. Every answer signed.
• GET/random/proof$0.001Provably-fair draw from the drand beacon with the full verifiable receipt + nonce-binding (the free draw is at GET /random).

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Showing 14 of 14 listed endpoints.