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/heading-outline

    Call when an agent needs an h1–h6 outline from a public URL or provided HTML. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/heading-outline first.

    BaseWeb data

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-ripemd160-hex

    Call when an agent needs an HMAC-ripemd160 of text with a caller-supplied key, encoded as hex. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/hmac-ripemd160-hex first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-sha1-hex

    Call when an agent needs an HMAC-sha1 of text with a caller-supplied key, encoded as hex. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha1-hex first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-sha224-base64url

    Call when an agent needs an HMAC-sha224 of text with a caller-supplied key, encoded as base64url. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha224-base64url first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-sha512-base64

    Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as base64. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha512-base64 first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/html-to-md

    Call when an agent already has HTML and needs clean markdown. No network. Optional url is a base for relative links only. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/html-to-md first.

    BaseWeb data

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/id-ksuid

    Call when an agent needs whether a string is a valid ksuid. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/id-ksuid first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/json-path

    Call when an agent needs a JSONPath query evaluated over JSON. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/json-path first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/json-repair

    Call when an agent needs broken JSON repaired deterministically, with the list of transforms applied. No LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/json-repair first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/json-sort-keys

    Call when an agent needs JSON rewritten with the sort-keys transform. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/json-sort-keys first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

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

    Call when an agent needs a JSON array of objects converted to CSV. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/json-to-csv first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/keyword-density

    Call when an agent needs top keyword counts and density for text. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/keyword-density first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/lang-detect

    Call when an agent needs a heuristic language guess for text. No LLM and no network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/lang-detect first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

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

    Call when an agent needs lines of text transformed with reverse. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/lines-reverse first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/lines-take-5

    Call when an agent needs lines of text transformed with take-5. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/lines-take-5 first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/newline-no-final

    Call when an agent needs newlines normalized to no-final. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/newline-no-final first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/norm-curly-quotes

    Call when an agent needs text normalized with curly-quotes. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/norm-curly-quotes first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/norm-strip-diacritics

    Call when an agent needs text normalized with strip-diacritics. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-diacritics first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/phone-e164

    Call when an agent needs a phone number normalized to E.164 when the country is known. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/phone-e164 first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/profile-a-hreflang

    Call when an agent needs anchor hreflang values extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-a-hreflang first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-article-section

    Call when an agent needs article:section extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-article-section first.

    BaseWeb data

    $0.002/ request

    2026-09-23

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

    Call when an agent needs dc.title extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-dc-title first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-footer-text

    Call when an agent needs footer text extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-footer-text first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-form-method

    Call when an agent needs form method values extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-form-method first.

    BaseWeb data

    $0.002/ request

    2026-09-23

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

    Call when an agent needs h1–h6 text extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-headings first.

    BaseWeb data

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/profile-html-lang

    Call when an agent needs the html lang attribute extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-html-lang first.

    BaseWeb data

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/profile-jsonld-article

    Call when an agent needs JSON-LD @type Article, NewsArticle, or BlogPosting extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-article first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-jsonld-local-business

    Call when an agent needs JSON-LD @type LocalBusiness extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-local-business first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

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

    Call when an agent needs li text extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-li first.

    BaseWeb data

    $0.002/ request

    2026-09-23

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

    Call when an agent needs link rel=help hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-help first.

    BaseWeb data

    $0.002/ request

    2026-09-23

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

    Call when an agent needs link rel=me hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-me first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-time-datetime

    Call when an agent needs time datetime values extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-time-datetime first.

    BaseWeb data

    $0.002/ request

    2026-09-23

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

    Call when an agent needs twitter:card extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-card first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/punycode-decode

    Call when an agent needs text decoded with punycode. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/punycode-decode first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

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

    Call when an agent needs card matches redacted in text. Nothing is stored. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/redact-card first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

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

    Call when an agent needs domain names extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/regex-domain first.

    BaseIdentity

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-hex-color

    Call when an agent needs hex colors extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/regex-hex-color first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-html-tag

    Call when an agent needs HTML tags extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/regex-html-tag first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

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

    Call when an agent needs HH:MM times extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/regex-time first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-dot-160-unicode

    Call when an agent needs a slug using ".", capped at 160 characters, keeping Unicode letters. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-160-unicode first.

    BaseCommerce

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-hyphen-160-unicode

    Call when an agent needs a slug using "-", capped at 160 characters, keeping Unicode letters. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-160-unicode first.

    BaseCommerce

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-plus-160-unicode

    Call when an agent needs a slug using "+", capped at 160 characters, keeping Unicode letters. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-160-unicode first.

    BaseCommerce

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-tilde-160-unicode

    Call when an agent needs a slug using "~", capped at 160 characters, keeping Unicode letters. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-160-unicode first.

    BaseCommerce

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-underscore-160-unicode

    Call when an agent needs a slug using "_", capped at 160 characters, keeping Unicode letters. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-160-unicode first.

    BaseCommerce

    $0.002/ request

    2026-09-23

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

    Call when an agent needs whether the negotiated protocol on port 443 is TLS 1.2 or 1.3. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/tls-protocol first.

    BaseIdentity

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/uuid-name-v5-url

    Call when an agent needs a deterministic UUID v5 in the url namespace. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/uuid-name-v5-url first.

    BaseDeveloper tools

    $0.002/ request

    2026-09-23

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

    Call when an agent needs text of //caption via //caption from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/xpath-caption first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-h5

    Call when an agent needs text of //h5 via //h5 from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/xpath-h5 first.

    BaseWeb data

    $0.002/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-meta-description

    Call when an agent needs content of meta name=description via //meta[@name='description']/@content from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/xpath-meta-description first.

    BaseWeb data

    $0.002/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/xpath-nav-href

    Call when an agent needs href attributes of anchors under //nav via //nav//a/@href from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/xpath-nav-href first.

    BaseMarket data

    $0.002/ 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.