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/regex-orcid
Call when an agent needs ORCID iDs extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/regex-orcid first.
BaseDeveloper tools
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-sha256
Call when an agent needs SHA-256 hex digests extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/regex-sha256 first.
BaseDeveloper tools
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-shebang
Call when an agent needs shebang lines extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/regex-shebang first.
BaseDeveloper tools
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/regex-ulid
Call when an agent needs ULIDs extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/regex-ulid first.
BaseDeveloper tools
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/sitemap-urls
Call when an agent needs URLs from a sitemap or sitemap index (SSRF-safe, one index level, cap 1000). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/sitemap-urls first.
BaseDeveloper tools
$0.005/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/slug-dot-40-ascii
Call when an agent needs a slug using ".", capped at 40 characters, ASCII-folded. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-40-ascii first.
BaseOther
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-hyphen-40-ascii
Call when an agent needs a slug using "-", capped at 40 characters, ASCII-folded. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-40-ascii first.
BaseOther
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-plus-40-ascii
Call when an agent needs a slug using "+", capped at 40 characters, ASCII-folded. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-40-ascii first.
BaseOther
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-tilde-40-ascii
Call when an agent needs a slug using "~", capped at 40 characters, ASCII-folded. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-40-ascii first.
BaseOther
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/slug-underscore-40-ascii
Call when an agent needs a slug using "_", capped at 40 characters, ASCII-folded. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-40-ascii first.
BaseOther
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/tls-expiry-14
Call when an agent needs whether the port-443 certificate stays valid for at least 14 days. The threshold changes the ok_check bit. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/tls-expiry-14 first.
BaseIdentity
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/url-to-md
Call when an agent needs main content of a public http(s) URL as markdown plus title and final_url. SSRF-safe fetch. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/url-to-md first.
BaseWeb data
$0.005/ request
2026-09-22
https://agentshelf.syntexa.ch/v1/xpath-cite
Call when an agent needs text of //cite via //cite from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-cite first.
BaseWeb data
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-main
Call when an agent needs text of //main via //main from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-main first.
BaseWeb data
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-og-image
Call when an agent needs content of meta property=og:image via //meta[@property='og:image']/@content from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-og-image first.
BaseWeb data
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-role
Call when an agent needs text of elements with role via //*[@role] from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-role first.
BaseWeb data
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-script-src
Call when an agent needs src attributes of //script via //script/@src from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-script-src first.
BaseWeb data
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/xpath-time
Call when an agent needs datetime attributes of //time via //time/@datetime from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-time first.
BaseWeb data
$0.005/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/ascii85-decode
Call when an agent needs text decoded with ascii85. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/ascii85-decode first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/base58check-p2sh-decode
Call when an agent needs text decoded with base58check-p2sh. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/base58check-p2sh-decode first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/bytes-iec
Call when an agent needs a IEC (1024) byte size parsed to an integer. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/bytes-iec first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-flat
Call when an agent needs text rewritten with the flat case transform. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/case-flat first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/case-pascal
Call when an agent needs text rewritten with the pascal case transform. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/case-pascal first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-card-any
Call when an agent needs whether a card-shaped number passes Luhn. Nothing is stored. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-card-any first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-color-hex
Call when an agent needs whether a string is a hex color. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-color-hex first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-hostname-idn
Call when an agent needs whether a string is a hostname that may use Unicode labels. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-hostname-idn first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-ba
Call when an agent needs whether an IBAN is a mod-97-valid BA number of length 20. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ba first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-be
Call when an agent needs whether an IBAN is a mod-97-valid BE number of length 16. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-be first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-gl
Call when an agent needs whether an IBAN is a mod-97-valid GL number of length 18. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gl first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-lu
Call when an agent needs whether an IBAN is a mod-97-valid LU number of length 20. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-lu first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-lv
Call when an agent needs whether an IBAN is a mod-97-valid LV number of length 21. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-lv first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-md
Call when an agent needs whether an IBAN is a mod-97-valid MD number of length 24. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-md first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-iban-sc
Call when an agent needs whether an IBAN is a mod-97-valid SC number of length 31. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-sc first.
BaseOther
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-isbn
Call when an agent needs whether a string is a valid ISBN-10 or ISBN-13. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-isbn first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-plus-code
Call when an agent needs whether a string is a full Open Location Code. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-plus-code first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-schema-draft-06
Call when an agent needs a limited JSON Schema draft-06 check. Dialects disagree on exclusive bounds and format. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-06 first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-url-https
Call when an agent needs whether a URL uses the https scheme. No fetch. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-url-https first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-es
Call when an agent needs whether a ES VAT checksum is valid. No registry lookup. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-vat-es first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/check-vat-gb
Call when an agent needs whether a GB VAT checksum is valid. No registry lookup. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-vat-gb first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/checksum-crc32-dec
Call when an agent needs a crc32 checksum of text as dec. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc32-dec first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/checksum-fletcher16-dec
Call when an agent needs a fletcher16 checksum of text as dec. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/checksum-fletcher16-dec first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/color-hsl-to-hex
Call when an agent needs a color converted with hsl-to-hex. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/color-hsl-to-hex first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/cron-next-5-12
Call when an agent needs the next 12 UTC times for a 5-field cron expression. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/cron-next-5-12 first.
BaseDeveloper tools
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-data-value
Call when an agent needs data value attributes via data[value] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-data-value first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-footer
Call when an agent needs footer text via footer from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-footer first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-iframe-src
Call when an agent needs iframe sources via iframe[src] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-iframe-src first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-img-src
Call when an agent needs image sources via img[src] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-img-src first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-li
Call when an agent needs list item text via li from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-li first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-manifest
Call when an agent needs web manifest hrefs via link[rel='manifest'] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-manifest first.
BaseWeb data
$0.006/ request
2026-09-23
https://agentshelf.syntexa.ch/v1/css-meta-og-title
Call when an agent needs og:title content via meta[property='og:title'] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-meta-og-title first.
BaseWeb data
$0.006/ 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.