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/redact-ipv4
Call when an agent needs ipv4 matches redacted in text. Nothing is stored. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/redact-ipv4 first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-cidr
Call when an agent needs IPv4 CIDR blocks extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/regex-cidr first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-lei
Call when an agent needs LEI-shaped tokens extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/regex-lei first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-mention
Call when an agent needs at-mentions extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/regex-mention first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-url
Call when an agent needs http(s) URLs extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/regex-url first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-dot-120-ascii
Call when an agent needs a slug using ".", capped at 120 characters, ASCII-folded. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-120-ascii first.
BaseOther
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-hyphen-120-ascii
Call when an agent needs a slug using "-", capped at 120 characters, ASCII-folded. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-120-ascii first.
BaseOther
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-plus-120-ascii
Call when an agent needs a slug using "+", capped at 120 characters, ASCII-folded. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-120-ascii first.
BaseOther
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-tilde-120-ascii
Call when an agent needs a slug using "~", capped at 120 characters, ASCII-folded. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-120-ascii first.
BaseOther
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-underscore-120-ascii
Call when an agent needs a slug using "_", capped at 120 characters, ASCII-folded. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-120-ascii first.
BaseOther
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/tls-wildcard
Call when an agent needs whether any SAN on port 443 is a wildcard DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/tls-wildcard first.
BaseIdentity
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/utf16-hex-encode
Call when an agent needs text encoded with utf16-hex. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/utf16-hex-encode first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/uuid-name-v3-dns
Call when an agent needs a deterministic UUID v3 in the dns namespace. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/uuid-name-v3-dns first.
BaseDeveloper tools
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-a-href
Call when an agent needs href attributes of //a via //a/@href from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-a-href first.
BaseWeb data
$0.009/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/xpath-a-title
Call when an agent needs title attributes of //a via //a/@title from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-a-title first.
BaseWeb data
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-button
Call when an agent needs text of //button via //button from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-button first.
BaseWeb data
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-dd
Call when an agent needs text of //dd via //dd from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-dd first.
BaseWeb data
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-pre
Call when an agent needs text of //pre via //pre from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-pre first.
BaseWeb data
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-select-name
Call when an agent needs name attributes of //select via //select/@name from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-select-name first.
BaseWeb data
$0.009/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base32hex-decode
Call when an agent needs text decoded with base32hex. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/base32hex-decode first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base62-decode
Call when an agent needs text decoded with base62. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/base62-decode first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base64-decode
Call when an agent needs text decoded with base64. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/base64-decode first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-train
Call when an agent needs text rewritten with the train case transform. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/case-train first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-card-discover
Call when an agent needs whether a number passes Luhn and matches discover. Nothing is stored. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-card-discover first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-date-date
Call when an agent needs whether a string is a real YYYY-MM-DD date. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-date-date first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-email-plus-reject
Call when an agent needs whether an email is rejected because the local part contains a plus tag. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-email-plus-reject first.
BaseIdentity
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-cr
Call when an agent needs whether an IBAN is a mod-97-valid CR number of length 22. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-cr first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-de
Call when an agent needs whether an IBAN is a mod-97-valid DE number of length 22. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-de first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-is
Call when an agent needs whether an IBAN is a mod-97-valid IS number of length 26. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-is first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-jo
Call when an agent needs whether an IBAN is a mod-97-valid JO number of length 30. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-jo first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-mu
Call when an agent needs whether an IBAN is a mod-97-valid MU number of length 30. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-mu first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-pt
Call when an agent needs whether an IBAN is a mod-97-valid PT number of length 25. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-pt first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-ro
Call when an agent needs whether an IBAN is a mod-97-valid RO number of length 24. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ro first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-tn
Call when an agent needs whether an IBAN is a mod-97-valid TN number of length 24. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-tn first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-ip-cidr6
Call when an agent needs whether a string is an IPv6 CIDR prefix. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-ip-cidr6 first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-semver-strict
Call when an agent needs whether a string is strict semver without a leading v. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-semver-strict first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-upc-e
Call when an agent needs whether an 8-digit UPC-E-shaped number passes Luhn. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-upc-e first.
BaseOther
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-at
Call when an agent needs whether a AT VAT checksum is valid. No registry lookup. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-vat-at first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-sk
Call when an agent needs whether a SK VAT checksum is valid. No registry lookup. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-vat-sk first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/checksum-adler32-dec
Call when an agent needs a adler32 checksum of text as dec. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/checksum-adler32-dec first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/cron-next-6-5
Call when an agent needs the next 5 UTC times for a 6-field cron expression. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/cron-next-6-5 first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-figcaption
Call when an agent needs figcaption text via figcaption from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-figcaption first.
BaseWeb data
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-form-method
Call when an agent needs form methods via form[method] from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-form-method first.
BaseWeb data
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-h1
Call when an agent needs h1 text via h1 from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-h1 first.
BaseWeb data
$0.01/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/css-itemtype
Call when an agent needs itemtype values via [itemtype] from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-itemtype first.
BaseWeb data
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-link-rel
Call when an agent needs link rel values via link[rel] from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-link-rel first.
BaseWeb data
$0.01/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/css-option
Call when an agent needs option text via option from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-option first.
BaseWeb data
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-video-src
Call when an agent needs video sources via video[src] from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-video-src first.
BaseWeb data
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/diff-words
Call when an agent needs a words diff of two strings. No network. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/diff-words first.
BaseDeveloper tools
$0.01/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/digest-blake2b512-base64url-latin1
Call when an agent needs a blake2b512 digest of latin1 bytes, encoded as base64url. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64url-latin1 first.
BaseOther
$0.01/ 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.