Assay

agent402.tools

Utilities514 endpointsagent402.tools

Cryptographic hash of a text string. Algorithms: sha256 (default), sha512, sha1, md5. Returns hex and base64 digests.

Pays to C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE

Pays elsewhere2 rerouted · 20h ago2 above list8 of 514 failing
$0.001 – $1.50
USDC
Score
None yetno buyer reviews yet
Positive
None yetno buyer reviews yet
Paid calls
2,0894 distinct payers
Verified
20h ago506 of 514 as listed
On-chain
C7IIHG7S…OY2XIEpayout address on Algorand
All514With a finding8Free with proof of work12

12 of 514 endpoints

  • GET

    /api/calendar-diff

    free with PoW

    Calculate the precise difference between two datetimes in years, months, days, hours, minutes, seconds, and total milliseconds. Accepts ISO 8601, Unix timestamps, or natural date strings. ?from=2024-01-15&to=2026-06-23.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/cron-explain

    free with PoW

    Parse a standard 5-field cron expression (minute hour day-of-month month day-of-week) and return a human-readable explanation. Supports wildcards (*), ranges (1-5), lists (1,3,5), steps (*/15), and named months/days (JAN, MON). ?expression=0+9+*+*...

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Open below

    Call it from here

    GET /api/cron-explain

    Assay builds the request this listing describes, sends it, and shows you exactly what comes back — including when what comes back is a complaint.

    The request, built from the listing

    GET https://agent402.tools/api/cron-explain?expression=0+9+*+*+1-5

    Declared inputsexpression

    This one takes proof of work instead of money — a few milliseconds of CPU, and it costs you nothing.

    This page holds no key and cannot move money. Paid verification runs in an isolated worker with the only signing account, under the spend ceiling published in the methodology.

  • GET

    /api/date-format

    free with PoW

    Parse a datetime from any format (ISO 8601, Unix timestamp in seconds or milliseconds, RFC 2822, or natural date string) and return it in every common format: ISO 8601, Unix (seconds), Unix (ms), RFC 2822, date-only, time-only, day of week, and hu...

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/lorem

    free with PoW

    Placeholder text. ?paragraphs=1..20 or ?words=1..2000.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/lorem-ipsum

    free with PoW

    Generate placeholder lorem ipsum text. Supports paragraphs or sentences mode with configurable counts. Uses a fixed vocabulary and deterministic assembly.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/mime

    free with PoWpaid receipt

    Look up a MIME type by file extension (?ext=png) or extensions by MIME type (?type=image/png). Covers ~50 common types.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/password

    free with PoW

    Generate cryptographically random passwords. ?length=8..128 (default 24), ?symbols=true|false (default true), ?count=1..20.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/random

    free with PoW

    Cryptographically secure randomness. ?bytes=1..1024 returns hex; or ?min=&max= returns a uniform integer; ?count=1..100.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/slug-generate

    free with PoW

    Generate a URL-safe slug from any string. Handles accented characters (normalize NFD), replaces non-alphanumeric with hyphens, collapses and trims. Optional max-length with word-boundary truncation.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/time

    free with PoW

    Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week — optionally rendered in any IANA timezone via ?tz=.

    as listed21h agoagent402.tools

    $0.001
    per call, USDC
    Try it
  • GET

    /api/country-info

    free with PoW

    Country facts by name or ISO code: official name, capital, region, currencies, languages, timezones, dialing code, TLD, and more. Committed open dataset (world-countries, ODbL, plus the IANA timezone country map) — offline and deterministic. ?name...

    as listed21h agoagent402.tools

    $0.002
    per call, USDC
    Try it
  • GET

    /api/qr

    free with PoW

    Generate a QR code PNG from any text or URL. ?text=…&size=256 (128-1024).

    as listed21h agoagent402.tools

    $0.002
    per call, USDC
    Try it

Buyer reviews

none yet · a review costs a settlement

Nobody has bought from agent402.tools through an address that came back to write about it. Rather than print an empty box, this page hands the position to the evidence it does have — Assay’s own verification record, immediately below.

  1. 01

    Pay the merchant

    Call one of their endpoints and settle the 402 challenge in USDC on Algorand mainnet. That transfer is the whole credential.

  2. 02

    Sign the settlement

    Connect the address that sent it and sign a message naming this merchant, that transaction and your score. Assay stores no account and no password.

  3. 03

    The receipt travels with it

    Your review renders with its transaction id linked to the public explorer, so anyone can re-derive that you were a customer. One settlement buys one review.

Assay’s own prober is barred from reviewing, and the exclusion is a row in the database rather than a claim in a footer. Own this payout address? Claim the listing

Verification record

last sweep 20h ago · 514 of 514 covered

Nobody has reviewed agent402.tools yet — a review attaches to a payout address and opens once a buyer has settled with it, because a settlement is the only thing that proves a reviewer was a customer. Until then this is the evidence Assay has: calls it made itself, and what came back.

What the last sweep found

answered as listed
506 answered as listed
answered, but not as listed
8 answered, but not as listed
  • Pays elsewhere2 endpoints
    • /api/route/execute
    • /api/route/execute-max
  • Price mismatch6 endpoints
    • /api/stock-quotelists $0.01, demands $0.003
    • /api/skill/domain-intellists $0.25, demands $0.075
    • /api/answerlists $0.03, demands $0.08
    • and 3 more

List every endpoint with a finding · checked 20h ago

Settled payments

Delivered for free, on proof of work

12 of this merchant’s endpoints accept a few milliseconds of CPU instead of money. Assay solved the puzzle and got real content back, which turns “it challenged for payment” into “it actually delivers” at no cost — and you can reproduce it from the endpoint list.

List the 12 you can call for nothing

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