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.

Endpoints1,179
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
Categories: Developer tools541Web data277Other178Identity147Commerce25Media6Market data3AI models1Onchain data1
First seen: 2026-10-05 · last seen 2026-10-10

What we observed

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

See the readings

Endpoints

1,182 registered

https://agentshelf.syntexa.ch/v1/base45-encode
Call when an agent needs text encoded with base45. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/base45-encode first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base58-encode
Call when an agent needs text encoded with base58. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/base58-encode first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base64url-encode
Call when an agent needs text encoded with base64url. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/base64url-encode first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-dot
Call when an agent needs text rewritten with the dot case transform. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/case-dot first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-lower
Call when an agent needs text rewritten with the lower case transform. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/case-lower first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-card-jcb
Call when an agent needs whether a number passes Luhn and matches jcb. Nothing is stored. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-card-jcb first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-date-datetime
Call when an agent needs whether a string is an ISO datetime with a Z suffix. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-date-datetime first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-bg
Call when an agent needs whether an IBAN is a mod-97-valid BG number of length 22. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-bg first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-do
Call when an agent needs whether an IBAN is a mod-97-valid DO number of length 28. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-do first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-gb
Call when an agent needs whether an IBAN is a mod-97-valid GB number of length 22. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gb first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-kw
Call when an agent needs whether an IBAN is a mod-97-valid KW number of length 30. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-kw first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-li
Call when an agent needs whether an IBAN is a mod-97-valid LI number of length 21. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-li first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-pk
Call when an agent needs whether an IBAN is a mod-97-valid PK number of length 24. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-pk first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-pl
Call when an agent needs whether an IBAN is a mod-97-valid PL number of length 28. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-pl first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-tr
Call when an agent needs whether an IBAN is a mod-97-valid TR number of length 26. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-iban-tr first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-issn
Call when an agent needs whether an ISSN checksum is valid. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-issn first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-mac-colon
Call when an agent needs whether a string is a colon-separated MAC address. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-mac-colon first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-phone-e164
Call when an agent needs whether a phone number matches E.164. No carrier lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-phone-e164 first.
BaseIdentity
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-semver-loose
Call when an agent needs whether a string is semver with an optional leading v. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-semver-loose first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-ee
Call when an agent needs whether a EE VAT checksum is valid. No registry lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-vat-ee first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-pl
Call when an agent needs whether a PL VAT checksum is valid. No registry lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-vat-pl first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/checksum-crc16-hex
Call when an agent needs a crc16 checksum of text as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc16-hex first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/content-hash
Call when an agent needs a SHA-256 or MD5 hex digest of provided text. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/content-hash first.
BaseDeveloper tools
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/cron-next-6-8
Call when an agent needs the next 8 UTC times for a 6-field cron expression. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/cron-next-6-8 first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-a-href
Call when an agent needs anchor hrefs via a[href] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-a-href first.
BaseWeb data
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/css-cite
Call when an agent needs cite text via cite from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-cite first.
BaseWeb data
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-h2
Call when an agent needs h2 text via h2 from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-h2 first.
BaseWeb data
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-input-name
Call when an agent needs input names via input[name] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-input-name first.
BaseWeb data
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-legend
Call when an agent needs legend text via legend from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-legend first.
BaseWeb data
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-link-canonical
Call when an agent needs canonical hrefs via link[rel='canonical'] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-link-canonical first.
BaseWeb data
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/css-nofollow
Call when an agent needs nofollow anchor hrefs via a[rel~='nofollow'] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-nofollow first.
BaseWeb data
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-video-poster
Call when an agent needs video posters via video[poster] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-video-poster first.
BaseWeb data
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/diff-chars
Call when an agent needs a chars diff of two strings. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/diff-chars first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-blake2b512-base64url-rawhex
Call when an agent needs a blake2b512 digest of hex bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64url-rawhex first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-blake2s256-base64url
Call when an agent needs a blake2s256 digest of text, encoded as base64url. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64url first.
BaseDeveloper tools
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-blake2s256-base64url-utf16
Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64url-utf16 first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-md5-base32-latin1
Call when an agent needs a md5 digest of latin1 bytes, encoded as base32. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base32-latin1 first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-md5-hex
Call when an agent needs a md5 digest of text, encoded as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-hex first.
BaseDeveloper tools
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-md5-hex-utf16
Call when an agent needs a md5 digest of utf16le bytes, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-hex-utf16 first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha1-base64url-rawhex
Call when an agent needs a sha1 digest of hex bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base64url-rawhex first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha256-base64url
Call when an agent needs a sha256 digest of text, encoded as base64url. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base64url first.
BaseDeveloper tools
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha256-base64url-utf16
Call when an agent needs a sha256 digest of utf16le bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base64url-utf16 first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-224-base64url
Call when an agent needs a sha3-224 digest of text, encoded as base64url. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base64url first.
BaseDeveloper tools
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha3-224-base64url-utf16
Call when an agent needs a sha3-224 digest of utf16le bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base64url-utf16 first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-256-base64-latin1
Call when an agent needs a sha3-256 digest of latin1 bytes, encoded as base64. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base64-latin1 first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-384-hex-rawhex
Call when an agent needs a sha3-384 digest of hex bytes, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-hex-rawhex first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-512-base32-latin1
Call when an agent needs a sha3-512 digest of latin1 bytes, encoded as base32. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base32-latin1 first.
BaseOther
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha3-512-hex
Call when an agent needs a sha3-512 digest of text, encoded as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-hex first.
BaseDeveloper tools
$0.001/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/digest-sha3-512-hex-utf16
Call when an agent needs a sha3-512 digest of utf16le bytes, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-hex-utf16 first.
BaseDeveloper tools
$0.001/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-sha384-base64-latin1
Call when an agent needs a sha384 digest of latin1 bytes, encoded as base64. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base64-latin1 first.
BaseDeveloper tools
$0.001/ request
2026-09-23

Evidence

as of 2026-10-10

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 2026-10-10

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

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38	1,179	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 2026-10-10

Median

$0.005

per request, as registeredas of 2026-10-10

Highest

$0.02

per request, as registeredas of 2026-10-10

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.