x402 merchant

agentshelf.syntexa.ch

Name: agentshelf.syntexa.ch on x402: dated readings
Creator: Sato Hub
License: https://creativecommons.org/licenses/by/4.0/

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
Categories: Developer tools544Web data277Other178Identity147Commerce25Media6Market data3AI models1Onchain data1
First seen: 2026-10-05 · last seen 2026-10-11

What we observed

No outside payments seen · 7d2026-10-11Answers 4022026-10-10Not claimed

See the readings

Endpoints

1,182 registered

https://agentshelf.syntexa.ch/v1/check-email-strict-tld
Call when an agent needs whether an email has a strict alphabetic TLD. No mailbox lookup. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-email-strict-tld first.
BaseIdentity
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-at
Call when an agent needs whether an IBAN is a mod-97-valid AT number of length 20. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-at first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-br
Call when an agent needs whether an IBAN is a mod-97-valid BR number of length 29. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-br first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-cy
Call when an agent needs whether an IBAN is a mod-97-valid CY number of length 28. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-cy first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-cz
Call when an agent needs whether an IBAN is a mod-97-valid CZ number of length 24. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-cz first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-il
Call when an agent needs whether an IBAN is a mod-97-valid IL number of length 23. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-il first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-mk
Call when an agent needs whether an IBAN is a mod-97-valid MK number of length 19. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-mk first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-st
Call when an agent needs whether an IBAN is a mod-97-valid ST number of length 25. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-st first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-ip-ipv6
Call when an agent needs whether a string is an IPv6 address. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-ip-ipv6 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-schema-2019-09
Call when an agent needs a limited JSON Schema 2019-09 check. Dialects disagree on exclusive bounds and format. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-schema-2019-09 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-url-any
Call when an agent needs whether a string is any absolute URL. No fetch. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-url-any first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-hu
Call when an agent needs whether a HU VAT checksum is valid. No registry lookup. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-vat-hu first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-nl
Call when an agent needs whether a NL VAT checksum is valid. No registry lookup. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-vat-nl first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/checksum-crc32c-dec
Call when an agent needs a crc32c checksum of text as dec. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc32c-dec first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/checksum-fletcher32-dec
Call when an agent needs a fletcher32 checksum of text as dec. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/checksum-fletcher32-dec first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/color-hsl-to-rgb
Call when an agent needs a color converted with hsl-to-rgb. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/color-hsl-to-rgb first.
BaseMedia
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/cron-next-6-1
Call when an agent needs the next 1 UTC time for a 6-field cron expression. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/cron-next-6-1 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-aside
Call when an agent needs aside text via aside from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-aside first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-code
Call when an agent needs code text via code from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-code first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-img-srcset
Call when an agent needs image srcset values via img[srcset] from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-img-srcset first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-label
Call when an agent needs label text via label from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-label first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-meta-twitter
Call when an agent needs twitter:card content via meta[name='twitter:card'] from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-meta-twitter first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-role
Call when an agent needs role values via [role] from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-role first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-script-type
Call when an agent needs script type values via script[type] from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-script-type first.
BaseWeb data
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-title
Call when an agent needs document title text via title from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-title first.
BaseWeb data
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/csv-colon
Call when an agent needs CSV parsed with a forced colon delimiter. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/csv-colon first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-blake2b512-base32
Call when an agent needs a blake2b512 digest of text, encoded as base32. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base32 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-blake2b512-base64-rawhex
Call when an agent needs a blake2b512 digest of hex bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64-rawhex first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-blake2s256-base64-utf16
Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64-utf16 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-md5-base64url-latin1
Call when an agent needs a md5 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64url-latin1 first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-ripemd160-hex-latin1
Call when an agent needs a ripemd160 digest of latin1 bytes, encoded as hex. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-ripemd160-hex-latin1 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha1-base32
Call when an agent needs a sha1 digest of text, encoded as base32. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base32 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha1-base64-rawhex
Call when an agent needs a sha1 digest of hex bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base64-rawhex first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha224-base64
Call when an agent needs a sha224 digest of text, encoded as base64. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha224-base64 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha256-base64-utf16
Call when an agent needs a sha256 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base64-utf16 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-224-base64-utf16
Call when an agent needs a sha3-224 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base64-utf16 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-256-base32-rawhex
Call when an agent needs a sha3-256 digest of hex bytes, encoded as base32. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base32-rawhex first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-256-hex-latin1
Call when an agent needs a sha3-256 digest of latin1 bytes, encoded as hex. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-hex-latin1 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-384-base32-utf16
Call when an agent needs a sha3-384 digest of utf16le bytes, encoded as base32. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base32-utf16 first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-384-base64
Call when an agent needs a sha3-384 digest of text, encoded as base64. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base64 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha3-512-base64url-latin1
Call when an agent needs a sha3-512 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64url-latin1 first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha384-base32-rawhex
Call when an agent needs a sha384 digest of hex bytes, encoded as base32. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base32-rawhex first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha384-hex-latin1
Call when an agent needs a sha384 digest of latin1 bytes, encoded as hex. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-hex-latin1 first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64url-latin1
Call when an agent needs a sha512-224 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64url-latin1 first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha512-256-base32
Call when an agent needs a sha512-256 digest of text, encoded as base32. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base32 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha512-256-base64-rawhex
Call when an agent needs a sha512-256 digest of hex bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64-rawhex first.
BaseDeveloper tools
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha512-base32-utf16
Call when an agent needs a sha512 digest of utf16le bytes, encoded as base32. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base32-utf16 first.
BaseOther
$0.008/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha512-base64
Call when an agent needs a sha512 digest of text, encoded as base64. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base64 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-shake256-base32
Call when an agent needs a shake256 digest of text, encoded as base32. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-base32 first.
BaseDeveloper tools
$0.008/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/dns-mx
Call when an agent needs MX records only, formatted as priority and exchange. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-mx first.
BaseIdentity
$0.008/ request
2026-09-23

Evidence

as of 2026-10-11

Answers HTTP 402

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)

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

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38	1,182	1 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 2026-10-11

Median

$0.005

per request, as registeredas of 2026-10-11

Highest

$0.02

per request, as registeredas of 2026-10-11

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.