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/profile-figcaption
Call when an agent needs figcaption text extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-figcaption first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-form-action
Call when an agent needs form action values extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-form-action first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-jsonld-faq
Call when an agent needs JSON-LD @type FAQPage extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-faq first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-jsonld-video
Call when an agent needs JSON-LD @type VideoObject extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-video first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-link-hreflang
Call when an agent needs link hreflang values extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-link-hreflang first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-meta-author
Call when an agent needs the meta author extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-author first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-og-image-width
Call when an agent needs og:image:width extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-og-image-width first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-og-url
Call when an agent needs og:url extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-og-url first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-rel-canonical
Call when an agent needs link rel tokens that equal canonical extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-canonical first.
BaseWeb data
$0.006/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/profile-rel-dns-prefetch
Call when an agent needs link rel=dns-prefetch hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-dns-prefetch first.
BaseIdentity
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-select-name
Call when an agent needs select name values extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-select-name first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-twitter-player
Call when an agent needs twitter:player extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-player first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/profile-twitter-site
Call when an agent needs twitter:site extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-site first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/quoted-printable-decode
Call when an agent needs text decoded with quoted-printable. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/quoted-printable-decode first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/redact-pem
Call when an agent needs pem matches redacted in text. Nothing is stored. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/redact-pem first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-jwt
Call when an agent needs JWT-shaped tokens (no verify) extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/regex-jwt first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-mac
Call when an agent needs colon MAC addresses extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/regex-mac first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-wikidata
Call when an agent needs Wikidata Q ids extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/regex-wikidata first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-dot-40-unicode
Call when an agent needs a slug using ".", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-40-unicode first.
BaseCommerce
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-hyphen-40-unicode
Call when an agent needs a slug using "-", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-40-unicode first.
BaseCommerce
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-plus-40-unicode
Call when an agent needs a slug using "+", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-40-unicode first.
BaseCommerce
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-tilde-40-unicode
Call when an agent needs a slug using "~", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-40-unicode first.
BaseCommerce
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-underscore-40-unicode
Call when an agent needs a slug using "_", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-40-unicode first.
BaseCommerce
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/tls-expiry-30
Call when an agent needs whether the port-443 certificate stays valid for at least 30 days. The threshold changes the ok_check bit. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/tls-expiry-30 first.
BaseIdentity
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/tls-https
Call when an agent needs a certificate summary for TCP 443. ok_check is true when the cert is authorized and unexpired. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/tls-https first.
BaseIdentity
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-aside
Call when an agent needs text of //aside via //aside from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-aside first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-form-action
Call when an agent needs action attributes of //form via //form/@action from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-form-action first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-itemprop
Call when an agent needs text of elements with itemprop via //*[@itemprop] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-itemprop first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-lang
Call when an agent needs text of elements that have a lang attribute via //*[@lang] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-lang first.
BaseWeb data
$0.006/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/xpath-q
Call when an agent needs text of //q via //q from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-q first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-title
Call when an agent needs text of //title via //title from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-title first.
BaseWeb data
$0.006/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/base32-encode
Call when an agent needs text encoded with base32. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/base32-encode first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base36-encode
Call when an agent needs text encoded with base36. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/base36-encode first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-cobol
Call when an agent needs text rewritten with the cobol case transform. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/case-cobol first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-snake
Call when an agent needs text rewritten with the snake case transform. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/case-snake first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-card-visa
Call when an agent needs whether a number passes Luhn and matches visa. Nothing is stored. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-card-visa first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-color-rgb
Call when an agent needs whether a string is an rgb() color. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-color-rgb first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-ean-13
Call when an agent needs whether a 13-digit EAN passes Luhn. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-ean-13 first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-email-rfc
Call when an agent needs whether an email address has a usable syntax. No mailbox lookup. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-email-rfc first.
BaseIdentity
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-bh
Call when an agent needs whether an IBAN is a mod-97-valid BH number of length 22. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-bh first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-ch
Call when an agent needs whether an IBAN is a mod-97-valid CH number of length 21. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ch first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-ee
Call when an agent needs whether an IBAN is a mod-97-valid EE number of length 20. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ee first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-gr
Call when an agent needs whether an IBAN is a mod-97-valid GR number of length 27. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gr first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-gt
Call when an agent needs whether an IBAN is a mod-97-valid GT number of length 28. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gt first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-me
Call when an agent needs whether an IBAN is a mod-97-valid ME number of length 22. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-me first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-sm
Call when an agent needs whether an IBAN is a mod-97-valid SM number of length 27. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-sm first.
BaseOther
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-ip-ipv4
Call when an agent needs whether a string is an IPv4 address. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-ip-ipv4 first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-latlon
Call when an agent needs whether a string is a latitude,longitude pair in range. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-latlon first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-schema-draft-07
Call when an agent needs a limited JSON Schema draft-07 check. Dialects disagree on exclusive bounds and format. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-07 first.
BaseDeveloper tools
$0.007/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-url-web
Call when an agent needs whether a URL is http or https. No fetch. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-url-web first.
BaseWeb data
$0.007/ 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.