Sato Hub
x402 merchant

agentshelf.syntexa.ch

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
CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
Developer tools544Web data277Other178Identity147Commerce25Media6Market data3AI models1Onchain data1
First seen
2026-10-05 · last seen 2026-10-11

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-sha3-384-base32-latin1

    Call when an agent needs a sha3-384 digest of latin1 bytes, encoded as base32. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base32-latin1 first.

    BaseOther

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-384-base64url

    Call when an agent needs a sha3-384 digest of text, encoded as base64url. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base64url first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha3-384-hex-utf16

    Call when an agent needs a sha3-384 digest of utf16le bytes, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-hex-utf16 first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha3-512-base64url-rawhex

    Call when an agent needs a sha3-512 digest of hex bytes, encoded as base64url. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64url-rawhex first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha384-hex-rawhex

    Call when an agent needs a sha384 digest of hex bytes, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-hex-rawhex first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64url-rawhex

    Call when an agent needs a sha512-224 digest of hex bytes, encoded as base64url. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64url-rawhex first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-256-base64url-utf16

    Call when an agent needs a sha512-256 digest of utf16le bytes, encoded as base64url. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url-utf16 first.

    BaseOther

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-base32-latin1

    Call when an agent needs a sha512 digest of latin1 bytes, encoded as base32. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base32-latin1 first.

    BaseOther

    $0.009/ request

    2026-09-23

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

    Call when an agent needs a sha512 digest of text, encoded as base64url. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base64url first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-22

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

    Call when an agent needs a sha512 digest of utf16le bytes, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-hex-utf16 first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _hkps._tcp.{hostname} for HKPS. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-hkps first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _iax._udp.{hostname} for IAX. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-iax first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _matrix._tcp.{hostname} for Matrix. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-matrix first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _mqtt._tcp.{hostname} for MQTT. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-mqtt first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _smtp._tcp.{hostname} for SMTP. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-smtp first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _submission._tcp.{hostname} for mail submission. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-submi…

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs SRV records at _terraria._tcp.{hostname} for Terraria. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-terraria first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs TXT records at the hostname. No SPF filter. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt first.

    BaseIdentity

    $0.009/ request

    2026-09-22

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

    Call when an agent needs TXT at _atproto. An empty answer is records: [] and is billed. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-atproto first.

    BaseIdentity

    $0.009/ request

    2026-09-23

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

    Call when an agent needs TXT at google._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-google first.

    BaseIdentity

    $0.009/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-k3

    Call when an agent needs TXT at k3._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-k3 first.

    BaseIdentity

    $0.009/ request

    2026-09-22

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

    Call when an agent needs TXT at zoho._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-zoho first.

    BaseIdentity

    $0.009/ request

    2026-09-22

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

    Call when an agent needs an HMAC-blake2b512 of text with a caller-supplied key, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2b512-hex first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-blake2s256-base64url

    Call when an agent needs an HMAC-blake2s256 of text with a caller-supplied key, encoded as base64url. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2s256-base64url first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs an HMAC-md5 of text with a caller-supplied key, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-md5-hex first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-sha384-base64

    Call when an agent needs an HMAC-sha384 of text with a caller-supplied key, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha384-base64 first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/html-numeric-encode

    Call when an agent needs text encoded with html-numeric. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/html-numeric-encode first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/id-uuid-nil

    Call when an agent needs whether a string is a valid uuid-nil. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/id-uuid-nil first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/json-pretty-2

    Call when an agent needs JSON rewritten with the pretty-2 transform. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/json-pretty-2 first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs a decoded JWT header with no signature check. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/jwt-header first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs lines of text transformed with lowercase. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/lines-lowercase first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/lines-sort-numeric

    Call when an agent needs lines of text transformed with sort-numeric. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/lines-sort-numeric first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/newline-collapse

    Call when an agent needs newlines normalized to collapse. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/newline-collapse first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/ngram-word-1

    Call when an agent needs counts of word 1-grams. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/ngram-word-1 first.

    BaseOther

    $0.009/ request

    2026-09-23

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

    Call when an agent needs text normalized with nfd. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/norm-nfd first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs text normalized with strip-control. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-control first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs article:published_time extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-article-published first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs blockquote text extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-blockquote first.

    BaseWeb data

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-color-scheme

    Call when an agent needs the color-scheme meta value extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-color-scheme first.

    BaseWeb data

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-h2

    Call when an agent needs h2 text extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-h2 first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs header text extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-header first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-icon-mask

    Call when an agent needs mask-icon hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-icon-mask first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs itemprop values extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-itemprop first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs JSON-LD @type Course extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-course first.

    BaseDeveloper tools

    $0.009/ request

    2026-09-23

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

    Call when an agent needs mark text extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-mark first.

    BaseWeb data

    $0.009/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-meta-theme-color

    Call when an agent needs the theme-color meta value extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-theme-color first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs og:locale extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-og-locale first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs link rel=amphtml hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-amphtml first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs link rel=manifest hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-manifest first.

    BaseWeb data

    $0.009/ request

    2026-09-23

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

    Call when an agent needs video src values extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-video-src first.

    BaseWeb data

    $0.009/ request

    2026-09-23

Evidence

as of 2026-10-11

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 2026-10-11

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

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a381,1821 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 2026-10-11. Appearing here is not an endorsement. Check an endpoint with the doctor.