Sato Hub
x402 merchant

agentshelf.syntexa.ch

Developer tools API on Base, paid per request with x402.

  • Endpoints1,182
  • Price per requestfrom $0.001
  • Outside payers · 7d0
  • Answer 4021 of 1

Overview

as of 2026-10-11
Seller wallet
0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38
Chains
Base
Hosts
agentshelf.syntexa.ch
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools544Web data277Other178Identity147Commerce25Media6Market data3AI models1Onchain data1
First seen
2026-10-05 · last seen 2026-10-11

What we observed

No outside payments seen · 7d, not observedAnswers 402, observedNot claimed
See the readings

Endpoints

EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
1,182 registered

  • https://agentshelf.syntexa.ch/v1/check-vat-fr

    Call when an agent needs whether a FR VAT checksum is valid. No registry lookup. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-vat-fr first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-vat-pt

    Call when an agent needs whether a PT VAT checksum is valid. No registry lookup. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-vat-pt first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/checksum-crc32c-hex

    Call when an agent needs a crc32c checksum of text as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc32c-hex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/checksum-fletcher32-hex

    Call when an agent needs a fletcher32 checksum of text as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/checksum-fletcher32-hex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/color-rgb-to-hsl

    Call when an agent needs a color converted with rgb-to-hsl. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/color-rgb-to-hsl first.

    BaseMedia

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/cron-next-5-24

    Call when an agent needs the next 24 UTC times for a 5-field cron expression. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/cron-next-5-24 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-aria-label

    Call when an agent needs aria-label values via [aria-label] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-aria-label first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-blockquote

    Call when an agent needs blockquote text via blockquote from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-blockquote first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-caption

    Call when an agent needs table caption text via caption from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-caption first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-header

    Call when an agent needs header text via header from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-header first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-img-alt

    Call when an agent needs image alt text via img[alt] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-img-alt first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-meta-og-image

    Call when an agent needs og:image content via meta[property='og:image'] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-meta-og-image first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-preload

    Call when an agent needs preload hrefs via link[rel='preload'] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-preload first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-script-src

    Call when an agent needs script sources via script[src] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-script-src first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/csv-pipe

    Call when an agent needs CSV parsed with a forced pipe delimiter. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/csv-pipe first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-blake2b512-base64-latin1

    Call when an agent needs a blake2b512 digest of latin1 bytes, encoded as base64. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64-latin1 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-blake2b512-base64url

    Call when an agent needs a blake2b512 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64url first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-blake2s256-hex-rawhex

    Call when an agent needs a blake2s256 digest of hex bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-hex-rawhex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-md5-base64url-utf16

    Call when an agent needs a md5 digest of utf16le bytes, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64url-utf16 first.

    BaseOther

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-ripemd160-hex-utf16

    Call when an agent needs a ripemd160 digest of utf16le bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-ripemd160-hex-utf16 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha1-base64-latin1

    Call when an agent needs a sha1 digest of latin1 bytes, encoded as base64. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base64-latin1 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha1-base64url

    Call when an agent needs a sha1 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base64url first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha224-hex

    Call when an agent needs a sha224 digest of text, encoded as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha224-hex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha256-hex-rawhex

    Call when an agent needs a sha256 digest of hex bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-hex-rawhex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-224-hex-rawhex

    Call when an agent needs a sha3-224 digest of hex bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-hex-rawhex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-256-base32-latin1

    Call when an agent needs a sha3-256 digest of latin1 bytes, encoded as base32. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base32-latin1 first.

    BaseOther

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-256-hex-utf16

    Call when an agent needs a sha3-256 digest of utf16le bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-hex-utf16 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-384-base64url-rawhex

    Call when an agent needs a sha3-384 digest of hex bytes, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base64url-rawhex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-384-hex

    Call when an agent needs a sha3-384 digest of text, encoded as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-hex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha3-512-base64url-utf16

    Call when an agent needs a sha3-512 digest of utf16le bytes, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64url-utf16 first.

    BaseOther

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha384-base32-latin1

    Call when an agent needs a sha384 digest of latin1 bytes, encoded as base32. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base32-latin1 first.

    BaseOther

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha384-hex-utf16

    Call when an agent needs a sha384 digest of utf16le bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-hex-utf16 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64url-utf16

    Call when an agent needs a sha512-224 digest of utf16le bytes, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64url-utf16 first.

    BaseOther

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-256-base64-latin1

    Call when an agent needs a sha512-256 digest of latin1 bytes, encoded as base64. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64-latin1 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-256-base64url

    Call when an agent needs a sha512-256 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha512-base64url-rawhex

    Call when an agent needs a sha512 digest of hex bytes, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base64url-rawhex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-hex

    Call when an agent needs a sha512 digest of text, encoded as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-hex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-shake256-base64url

    Call when an agent needs a shake256 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-base64url first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-aaaa

    Call when an agent needs IPv6 addresses only. Empty is an error. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-aaaa first.

    BaseIdentity

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-ptr

    Call when an agent needs PTR records at the exact public hostname. An empty answer is records: [] and is billed. Not the bundled reverse-dns SKU. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-ptr first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-afp

    Call when an agent needs SRV records at _afpovertcp._tcp.{hostname} for AFP. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-afp first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-factorio

    Call when an agent needs SRV records at _factorio._udp.{hostname} for Factorio. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-factorio first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-imap

    Call when an agent needs SRV records at _imap._tcp.{hostname} for IMAP. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-imap first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-imaps

    Call when an agent needs SRV records at _imaps._tcp.{hostname} for IMAP over TLS. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-imaps first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-ldap

    Call when an agent needs SRV records at _ldap._tcp.{hostname} for LDAP. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-ldap first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-radius

    Call when an agent needs SRV records at _radius._udp.{hostname} for RADIUS. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-radius first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-stun-tcp

    Call when an agent needs SRV records at _stun._tcp.{hostname} for STUN over TCP. The caller sends the registrable domain, not the underscored name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-stun-tcp firs…

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-txt-adsp

    Call when an agent needs TXT at _adsp._domainkey. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-adsp first.

    BaseIdentity

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-mandrill

    Call when an agent needs TXT at mandrill._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-mandrill first.

    BaseIdentity

    $0.007/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-protonmail

    Call when an agent needs TXT at protonmail._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-protonmail first.

    BaseIdentity

    $0.007/ request

    2026-09-22

Evidence

as of 2026-10-11

Answers HTTP 402

Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

1 of 1

1 of 1 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-10-10

x402-style payments, last 7 days (Base)

x402-style paymentsMethod: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.

0outside payers

no x402-style payments observed in the last 7 days (Base, exact read)

window ended 2026-10-11

All USDC received at this payout address: $0.00 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-11, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out

By chain

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a381,1821 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-10-10
no x402-style payments observed in the last 7 days (Base, exact read)

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Pricing

Lowest
$0.001
per request, as registeredas of
Median
$0.005
per request, as registeredas of
Highest
$0.02
per request, as registeredas of

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.

Claim this merchant

Sign a message from the payout address 0x1d61fa…e55a38 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-11. Appearing here is not an endorsement. Check an endpoint with the doctor.