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/digest-sha512-224-base32-latin1

    Call when an agent needs a sha512-224 digest of latin1 bytes, encoded as base32. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base32-latin1 first.

    BaseOther

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-hex

    Call when an agent needs a sha512-224 digest of text, encoded as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-hex first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-hex-utf16

    Call when an agent needs a sha512-224 digest of utf16le bytes, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-hex-utf16 first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-256-base64url-rawhex

    Call when an agent needs a sha512-256 digest of hex bytes, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url-rawhex first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-hex-rawhex

    Call when an agent needs a sha512 digest of hex bytes, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-hex-rawhex first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-shake128-hex

    Call when an agent needs a shake128 digest of text, encoded as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-shake128-hex first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

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

    Call when an agent needs NS hostnames for the public name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-ns first.

    BaseIdentity

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-srv-caldavs

    Call when an agent needs SRV records at _caldavs._tcp.{hostname} for CalDAV over TLS. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-caldavs …

    BaseIdentity

    $0.001/ request

    2026-09-23

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

    Call when an agent needs SRV records at _https._tcp.{hostname} for HTTPS. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-https first.

    BaseIdentity

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-ipp

    Call when an agent needs SRV records at _ipp._tcp.{hostname} for IPP. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-ipp first.

    BaseIdentity

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-minecraft

    Call when an agent needs SRV records at _minecraft._tcp.{hostname} for Minecraft. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-minecraft fi…

    BaseIdentity

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-pkix

    Call when an agent needs SRV records at _pkixrep._tcp.{hostname} for PKIX repository. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-pkix fir…

    BaseIdentity

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-submission-udp

    Call when an agent needs SRV records at _submission._udp.{hostname} for submission over UDP. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-s…

    BaseIdentity

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-teamspeak

    Call when an agent needs SRV records at _ts3._udp.{hostname} for TeamSpeak. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-teamspeak first.

    BaseIdentity

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-key1

    Call when an agent needs TXT at key1._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-key1 first.

    BaseIdentity

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-selector2

    Call when an agent needs TXT at selector2._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-selector2 first.

    BaseIdentity

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-smtp

    Call when an agent needs TXT at smtp._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-smtp first.

    BaseIdentity

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-domainconnect

    Call when an agent needs TXT at _domainconnect. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-domainconnect first.

    BaseIdentity

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/email-syntax

    Call when an agent needs email syntax checked (no SMTP). No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/email-syntax first.

    BaseIdentity

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-blake2b512-base64url

    Call when an agent needs an HMAC-blake2b512 of text with a caller-supplied key, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2b512-base64url first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-md5-base64url

    Call when an agent needs an HMAC-md5 of text with a caller-supplied key, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/hmac-md5-base64url first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-sha224-base64

    Call when an agent needs an HMAC-sha224 of text with a caller-supplied key, encoded as base64. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha224-base64 first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

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

    Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as hex. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha512-hex first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

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

    Call when an agent needs HTML converted to plain text (scripts and styles removed). No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/html-to-text first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

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

    Call when an agent needs whether a string is a valid nanoid. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/id-nanoid first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

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

    Call when an agent needs JSON rewritten with the minify transform. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/json-minify first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/json-schema-check

    Call when an agent needs a JSON value checked against a JSON Schema. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/json-schema-check first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

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

    Call when an agent needs a JSON object or array converted to markdown (tables for array-of-objects). No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/json-to-md first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

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

    Call when an agent needs JSON converted to YAML. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/json-to-yaml first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/jwt-parts

    Call when an agent needs a decoded JWT header and payload with no signature check. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/jwt-parts first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/lines-drop-hash

    Call when an agent needs lines of text transformed with drop-hash. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/lines-drop-hash first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/lines-unique-ci

    Call when an agent needs lines of text transformed with unique-ci. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/lines-unique-ci first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

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

    Call when an agent needs Markdown converted to HTML (headings, lists, links, code, emphasis). No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/md-to-html first.

    BaseWeb data

    $0.001/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/newline-lf-final

    Call when an agent needs newlines normalized to lf-final. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/newline-lf-final first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/norm-nfkc-casefold

    Call when an agent needs text normalized with nfkc-casefold. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/norm-nfkc-casefold first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/norm-nfkd

    Call when an agent needs text normalized with nfkd. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/norm-nfkd first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

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

    Call when an agent needs anchor title values extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-a-title first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs article:author extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-article-author first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs the canonical link href extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-canonical first.

    BaseWeb data

    $0.001/ request

    2026-09-22

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

    Call when an agent needs citation_title extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-citation-title first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs dd text extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-dd first.

    BaseWeb data

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-h4

    Call when an agent needs h4 text extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-h4 first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs input type values extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-input-type first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs every JSON-LD block as JSON text extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

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

    Call when an agent needs JSON-LD @type SoftwareApplication extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-software first.

    BaseDeveloper tools

    $0.001/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-nav-links

    Call when an agent needs anchor hrefs inside nav extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-nav-links first.

    BaseMarket data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs og:video extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-og-video first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs link rel=edit hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-edit first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs link rel=license hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-license first.

    BaseWeb data

    $0.001/ request

    2026-09-23

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

    Call when an agent needs source src values extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-source-src first.

    BaseWeb data

    $0.001/ 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.