Sato Hub
x402 merchant

agentshelf.syntexa.ch

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
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools541Web data277Other178Identity147Commerce25Media6Market data3AI models1Onchain data1
First seen
2026-10-05 · last seen 2026-10-10

What we observed

No outside payments seen · 7d, not observedAnswers 402, observedNot claimed
See the readings

Endpoints

EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
1,182 registered

  • https://agentshelf.syntexa.ch/v1/profile-rel-next

    Call when an agent needs link rel=next hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-next first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-rss

    Call when an agent needs application/rss+xml alternate hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-rss first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-script-src

    Call when an agent needs script src values extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-script-src first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-script-type

    Call when an agent needs script type values extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-script-type first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-title

    Call when an agent needs the HTML document title extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-title first.

    BaseWeb data

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/profile-twitter-title

    Call when an agent needs twitter:title extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-title first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-video-poster

    Call when an agent needs video poster values extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-video-poster first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/redact-iban

    Call when an agent needs iban matches redacted in text. Nothing is stored. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/redact-iban first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-doi

    Call when an agent needs DOI identifiers extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/regex-doi first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-semver

    Call when an agent needs semver tokens extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/regex-semver first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-semver-range

    Call when an agent needs caret or tilde semver ranges extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/regex-semver-range first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-time-sec

    Call when an agent needs HH:MM:SS times extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/regex-time-sec first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/reverse-dns

    Call when an agent needs PTR hostnames for a public IPv4 or IPv6 address (private addresses rejected). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/reverse-dns first.

    BaseIdentity

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/robots-allowed

    Call when an agent needs a path checked against a site's robots.txt (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/robots-allowed first.

    BaseOther

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/slug-dot-24-ascii

    Call when an agent needs a slug using ".", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-24-ascii first.

    BaseOther

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-hyphen-24-ascii

    Call when an agent needs a slug using "-", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-24-ascii first.

    BaseOther

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-plus-24-ascii

    Call when an agent needs a slug using "+", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-24-ascii first.

    BaseOther

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-tilde-24-ascii

    Call when an agent needs a slug using "~", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-24-ascii first.

    BaseOther

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-underscore-24-ascii

    Call when an agent needs a slug using "_", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-24-ascii first.

    BaseOther

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/spf-dmarc

    Call when an agent needs SPF and DMARC policy for a public hostname (no mail is sent). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/spf-dmarc first.

    BaseIdentity

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/table-to-json

    Call when an agent needs HTML tables from a public URL or HTML turned into headers + rows. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/table-to-json first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/tls-cipher

    Call when an agent needs whether the negotiated cipher on port 443 excludes NULL, EXPORT, RC4, and DES. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/tls-cipher first.

    BaseIdentity

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/unicode-escape-encode

    Call when an agent needs text encoded with unicode-escape. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/unicode-escape-encode first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/url-expand

    Call when an agent needs to follow redirects (max 5, SSRF-safe HEAD/GET) and receive final_url, status, and redirect_chain. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/url-expand first.

    BaseWeb data

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/xml-to-json

    Call when an agent needs XML converted to JSON (DTD and entities rejected). No network. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xml-to-json first.

    BaseDeveloper tools

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/xpath-amphtml

    Call when an agent needs href of link rel=amphtml via //link[@rel='amphtml']/@href from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-amphtml first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-h6

    Call when an agent needs text of //h6 via //h6 from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-h6 first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-link-hreflang

    Call when an agent needs hreflang attributes of //link via //link/@hreflang from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-link-hreflang first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-og-title

    Call when an agent needs content of meta property=og:title via //meta[@property='og:title']/@content from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-og-title first.

    BaseWeb data

    $0.003/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/xpath-summary

    Call when an agent needs text of //summary via //summary from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-summary first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-th

    Call when an agent needs text of //th via //th from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-th first.

    BaseWeb data

    $0.003/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/article-dates

    Call when an agent needs published and modified dates extracted from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/article-dates first.

    BaseWeb data

    $0.004/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/base58check-p2pkh-decode

    Call when an agent needs text decoded with base58check-p2pkh. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/base58check-p2pkh-decode first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/case-capitalize

    Call when an agent needs text rewritten with the capitalize case transform. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/case-capitalize first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/case-sentence

    Call when an agent needs text rewritten with the sentence case transform. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/case-sentence first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-bic

    Call when an agent needs whether a string has a BIC/SWIFT shape. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-bic first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-cron-5

    Call when an agent needs whether a string is a 5-field cron expression. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-cron-5 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-date-unix-ms

    Call when an agent needs whether a string is 13-digit Unix milliseconds. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-date-unix-ms first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-al

    Call when an agent needs whether an IBAN is a mod-97-valid AL number of length 28. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-al first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-dk

    Call when an agent needs whether an IBAN is a mod-97-valid DK number of length 18. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-dk first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-ge

    Call when an agent needs whether an IBAN is a mod-97-valid GE number of length 22. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ge first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-it

    Call when an agent needs whether an IBAN is a mod-97-valid IT number of length 27. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-it first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-lc

    Call when an agent needs whether an IBAN is a mod-97-valid LC number of length 32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-lc first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-rs

    Call when an agent needs whether an IBAN is a mod-97-valid RS number of length 22. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-rs first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-sk

    Call when an agent needs whether an IBAN is a mod-97-valid SK number of length 24. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-sk first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-iban-vg

    Call when an agent needs whether an IBAN is a mod-97-valid VG number of length 24. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-vg first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-isbn-10

    Call when an agent needs whether an ISBN-10 checksum is valid. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-isbn-10 first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-mime

    Call when an agent needs whether a string is a type/subtype media type. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-mime first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-phone-min10

    Call when an agent needs whether a phone has at least 10 digits. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-phone-min10 first.

    BaseOther

    $0.004/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-vat-fi

    Call when an agent needs whether a FI VAT checksum is valid. No registry lookup. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-vat-fi first.

    BaseDeveloper tools

    $0.004/ request

    2026-09-23

Evidence

as of 2026-10-10

Answers HTTP 402

Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

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)

x402-style paymentsMethod: 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.

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

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a381,1791 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
Median
$0.005
per request, as registeredas of
Highest
$0.02
per request, as registeredas of

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.