Sato Hub
x402 merchant

agentshelf.syntexa.ch

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

  • Endpoints1,179
  • Price per requestfrom $0.001
  • Outside payers · 7d0
  • Answer 4021 of 1

Overview

as of 2026-10-10
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 tools541Web data277Other178Identity147Commerce25Media6Market data3AI models1Onchain data1
First seen
2026-10-05 · last seen 2026-10-10

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-hr

    Call when an agent needs whether a HR VAT checksum is valid. No registry lookup. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-vat-hr first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/checksum-crc16-ccitt-dec

    Call when an agent needs a crc16-ccitt checksum of text as dec. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc16-ccitt-dec first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

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

    Call when an agent needs a color converted with rgb-to-hex. No network. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/color-rgb-to-hex first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/crockford-decode

    Call when an agent needs text decoded with crockford. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/crockford-decode first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

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

    Call when an agent needs the next 5 UTC times for a 5-field cron expression. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/cron-next-5-5 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-a-hreflang

    Call when an agent needs anchor hreflang values via a[hreflang] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-a-hreflang first.

    BaseWeb data

    $0.004/ request

    2026-09-23

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

    Call when an agent needs definition description text via dd from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-dd first.

    BaseWeb data

    $0.004/ request

    2026-09-23

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

    Call when an agent needs all heading text via h1,h2,h3,h4,h5,h6 from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-headings first.

    BaseWeb data

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/css-link-amp

    Call when an agent needs AMP HTML hrefs via link[rel='amphtml'] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-link-amp first.

    BaseWeb data

    $0.004/ request

    2026-09-23

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

    Call when an agent needs main text via main from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-main first.

    BaseWeb data

    $0.004/ request

    2026-09-23

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

    Call when an agent needs RSS autodiscovery hrefs via link[type='application/rss+xml'] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-rss first.

    BaseWeb data

    $0.004/ request

    2026-09-23

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

    Call when an agent needs text and attributes extracted with CSS selectors from a public page or HTML (SSRF-safe, node cap). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-select first.

    BaseWeb data

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/css-select-name

    Call when an agent needs select names via select[name] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-select-name first.

    BaseWeb data

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/css-source-srcset

    Call when an agent needs media source srcset values via source[srcset] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-source-srcset first.

    BaseWeb data

    $0.004/ request

    2026-09-23

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

    Call when an agent needs CSV parsed with a forced comma delimiter. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/csv-comma first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-blake2b512-base32-rawhex

    Call when an agent needs a blake2b512 digest of hex bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base32-rawhex first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

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

    Call when an agent needs a blake2b512 digest of latin1 bytes, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-hex-latin1 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-blake2s256-base32-utf16

    Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base32-utf16 first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-md5-base32

    Call when an agent needs a md5 digest of text, encoded as base32. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base32 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-md5-base64-utf16

    Call when an agent needs a md5 digest of utf16le bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64-utf16 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-ripemd160-base64

    Call when an agent needs a ripemd160 digest of text, encoded as base64. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-ripemd160-base64 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha1-base32-rawhex

    Call when an agent needs a sha1 digest of hex bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base32-rawhex first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

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

    Call when an agent needs a sha1 digest of latin1 bytes, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-hex-latin1 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha256-base32-utf16

    Call when an agent needs a sha256 digest of utf16le bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base32-utf16 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-224-base32-utf16

    Call when an agent needs a sha3-224 digest of utf16le bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base32-utf16 first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-256-base64

    Call when an agent needs a sha3-256 digest of text, encoded as base64. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base64 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha3-256-base64url-latin1

    Call when an agent needs a sha3-256 digest of latin1 bytes, encoded as base64url. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base64url-latin1 first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-384-base64-rawhex

    Call when an agent needs a sha3-384 digest of hex bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base64-rawhex first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-512-base32

    Call when an agent needs a sha3-512 digest of text, encoded as base32. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base32 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha3-512-base64-utf16

    Call when an agent needs a sha3-512 digest of utf16le bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64-utf16 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha384-base64

    Call when an agent needs a sha384 digest of text, encoded as base64. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base64 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha384-base64url-latin1

    Call when an agent needs a sha384 digest of latin1 bytes, encoded as base64url. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base64url-latin1 first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-base32

    Call when an agent needs a sha512-224 digest of text, encoded as base32. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base32 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64-utf16

    Call when an agent needs a sha512-224 digest of utf16le bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64-utf16 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-256-base32-rawhex

    Call when an agent needs a sha512-256 digest of hex bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base32-rawhex first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

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

    Call when an agent needs a sha512-256 digest of latin1 bytes, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-hex-latin1 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

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

    Call when an agent needs a sha512 digest of hex bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base64-rawhex first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-shake128-base32

    Call when an agent needs a shake128 digest of text, encoded as base32. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-shake128-base32 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-caa-issuewild

    Call when an agent needs CAA records whose tag is issuewild. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-caa-issuewild first.

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at the exact hostname the caller sends. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv first.

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at _jabber._tcp.{hostname} for Jabber. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-jabber first.

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at _raop._tcp.{hostname} for RAOP. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-raop first.

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at _scanner._tcp.{hostname} for scanner. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-scanner first.

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at _sip._udp.{hostname} for SIP over UDP. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sip-udp first.

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at _sipfederationtls._tcp.{hostname} for SIP federation TLS. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-…

    BaseIdentity

    $0.004/ request

    2026-09-23

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

    Call when an agent needs SRV records at _sips._tcp.{hostname} for SIP over TLS. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sips first.

    BaseIdentity

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-k1

    Call when an agent needs TXT at k1._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-k1 first.

    BaseIdentity

    $0.004/ request

    2026-09-22

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

    Call when an agent needs TXT at zendesk._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-zendesk first.

    BaseIdentity

    $0.004/ request

    2026-09-22

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

    Call when an agent needs TXT at _mta-sts that starts with v=STSv1. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-mta-sts first.

    BaseIdentity

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/duration-units

    Call when an agent needs a units duration converted to seconds. No network. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/duration-units first.

    BaseMedia

    $0.004/ request

    2026-09-23

Evidence

as of 2026-10-10

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 2026-10-10

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 2026-10-10, 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
Base0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a381,1791 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 2026-10-10. Appearing here is not an endorsement. Check an endpoint with the doctor.