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 · 23h 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
23h ago506 of 514 as listed
On-chain
C7IIHG7S…OY2XIEpayout address on Algorand
All514With a finding8Free with proof of work12

514 of 514 endpoints

  • POST

    /v1/embeddings

    OpenAI-compatible text embeddings over x402 — point any OpenAI SDK at base_url https://agent402.tools/v1 and pay $0.002 per call in USDC, no API key, no signup. Batch up to 64 inputs / 16k chars per request; text-embedding-3-small by default (3-la...

    as listed23h agoagent402.tools

    $0.002
    per call, USDC
    Try it
  • POST

    /api/archive-snapshot

    Look up a URL in the Internet Archive's Wayback Machine: returns the archived snapshot closest to an optional timestamp (default: most recent), with the snapshot URL, capture time, and archived HTTP status. Useful for citations, dead-link recovery...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/asn-info

    Look up the Autonomous System (ASN), prefix, country, registry, and allocation date for an IPv4 address — or for a hostname (which is resolved first). Uses Team Cymru's free DNS-based IP→ASN mapping; no HTTPS upstream, no auth, no rate-limit heada...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/barcode-decode

    Decode a barcode or QR code from an image. Send a base64 PNG or JPEG (or a data: URL); returns the decoded text and the symbology. Reads QR, DataMatrix, and 1D barcodes (EAN/UPC/Code39/Code128/ITF/Codabar). Deterministic, no network, no model.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/calldata-decode

    Decode EVM smart-contract transaction calldata into the function name and typed parameters. Supply an ABI (from /api/contract-abi) or a signature like transfer(address,uint256) for a fully offline decode; with neither, the 4-byte selector is resol...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/contract-abi

    Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {verified:false} miss. Pair wi...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/crypto-orderbook

    L2 order-book snapshot for a spot pair: best bid/ask, mid price, spread (absolute + %), and the top N aggregated price levels per side (default 25, max 100). Pairs use BASE-QUOTE format (BTC-USD, ETH-USD, SOL-USDC). Backed by Coinbase Exchange's p...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the selector — use email-deliverabi...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for months, percent <100). Pair w...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/dns-propagation

    Resolve the same DNS record against 4 public resolvers (Google, Cloudflare, Quad9, OpenDNS) in parallel; surface divergences. The first call you make after a DNS change — confirms the world sees what you intended.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/earthquakes

    Real-time USGS earthquake feed: magnitude, place, time, depth, coordinates. Live government data, no key. ?minMag=4.5&period=day (minMag: significant|4.5|2.5|1.0|all; period: hour|day|week|month).

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/ens-resolve

    Resolve an ENS name (e.g. vitalik.eth) to its Ethereum address — so an agent can turn a human-readable recipient into a payable address. Read-only on Ethereum mainnet. ?name=vitalik.eth

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/event-logs

    Fetch contract event logs (eth_getLogs) on Ethereum, Base, Polygon, Arbitrum, or Optimism - bounded so it always answers: block range capped at 2000 blocks (default: the last 100, auto-narrowed for busy contracts), at most 200 logs returned (trunc...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/favicon-grab

    Fetch a site's favicon/logo: reads the page's declared <link rel=icon…> tags (all variants with their sizes and types), deterministically picks the largest declared icon (falling back to /favicon.ico), fetches it, and returns the bytes as a base64...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Open below

    Call it from here

    POST /api/favicon-grab

    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

    POST https://agent402.tools/api/favicon-grab

{"url":"https://github.com"}

    Declared inputsurl

    Listed at $0.003. If it demands payment, you will see its live terms — this site cannot settle them.

    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/fx-historical

    Historical foreign-exchange rate for a specific date using European Central Bank reference rates (via Frankfurter). Returns the rate that was published on (or rolled forward to) the requested date. ?from=USD&to=EUR&date=2024-01-02

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/fx-rate

    Live currency conversion using European Central Bank reference rates (via Frankfurter). Converts an amount between two currencies and returns the rate and date. ?from=USD&to=EUR&amount=100

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/geo-lookup

    Resolve a US latitude/longitude to its county, state, and census block FIPS via the FCC Area API — the geographic context agents need for any coordinate. Live gov data, no key. ?lat=34.0522&lon=-118.2437

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/geocode

    Resolve a free-form address or place name to coordinates: lat/lon, display name, bounding box, place type. OpenStreetMap/Nominatim, no key. ?q=1600+Pennsylvania+Ave+Washington+DC&limit=1.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • GET

    /api/gov-data

    Search 300,000+ US government datasets on catalog.data.gov (CKAN): titles, publishing org, formats, and direct resource URLs — the index agents need before fetching public data. ?q=electric+vehicles&rows=5.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/http-check

    Check any public URL: status code, latency, final URL after redirects, and response headers. The uptime primitive for agent monitors.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/http-headers

    Fetch a URL and return every response header plus a security analysis: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/CORP/COEP. Scores 0–100 by presence, flags weak HSTS, and warns on Server/X-Powere...

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/image-dominant-color

    Extract the dominant colors of an image as a palette of hex values with pixel ratios. Send a public image URL or a base64 image, and optionally how many colors (1-10, default 5). Deterministic bucketed quantization; transparent pixels are ignored.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/image-exif

    Extract EXIF metadata from an image (camera make/model, timestamps, exposure, orientation, GPS). Send a public image URL or a base64 image; JPEG, PNG (eXIf chunk), and TIFF carry EXIF. Stripped images return an empty exif object, not an error.

    as listed23h agoagent402.tools

    $0.003
    per call, USDC
    Try it
  • POST

    /api/pdf-extract-pages

    Pull a subset of pages into a new PDF (split). Body: {"url":"https://…/file.pdf","pages":"1-3,5"}. Returns the new PDF as base64.

    as listed23h agoagent402.tools

    $0.003
    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 23h 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 23h 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

Also in utilities

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