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-sha3-512-base64-latin1

    Call when an agent needs a sha3-512 digest of latin1 bytes, encoded as base64. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base64-latin1 first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha384-base64url

    Call when an agent needs a sha384 digest of text, encoded as base64url. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base64url first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/digest-sha384-base64url-rawhex

    Call when an agent needs a sha384 digest of hex bytes, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base64url-rawhex first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-sha512-224-base64-latin1

    Call when an agent needs a sha512-224 digest of latin1 bytes, encoded as base64. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64-latin1 first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs a sha512-256 digest of text, encoded as hex. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-hex first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-22

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

    Call when an agent needs a sha512-256 digest of hex bytes, encoded as hex. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-hex-rawhex first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs a sha512 digest of utf16le bytes, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base64url-utf16 first.

    BaseOther

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/digest-shake256-hex

    Call when an agent needs a shake256 digest of text, encoded as hex. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-shake256-hex first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-caa-iodef

    Call when an agent needs CAA records whose tag is iodef. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-caa-iodef first.

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs NAPTR records at the exact hostname. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-naptr first.

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs SRV records at _matrix-fed._tcp.{hostname} for Matrix federation. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-mat…

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs SRV records at _ntp._udp.{hostname} for NTP. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-ntp first.

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs SRV records at _presence._tcp.{hostname} for XMPP presence. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-presence …

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs SRV records at _smb._tcp.{hostname} for SMB. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-smb first.

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs SRV records at _turn._tcp.{hostname} for TURN. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-turn first.

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs SRV records at _xmpp-client._tcp.{hostname} for XMPP client. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-xmpp-cli…

    BaseIdentity

    $0.005/ request

    2026-09-23

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

    Call when an agent needs TXT at mail._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-mail first.

    BaseIdentity

    $0.005/ request

    2026-09-22

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

    Call when an agent needs TXT at mailgun._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-mailgun first.

    BaseIdentity

    $0.005/ request

    2026-09-22

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

    Call when an agent needs TXT at _smtp._tls that starts with v=TLSRPTv1. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-tls-rpt first.

    BaseIdentity

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-sha256-hex

    Call when an agent needs an HMAC-sha256 of text with a caller-supplied key, encoded as hex. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha256-hex first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/hmac-sha3-256-base64

    Call when an agent needs an HMAC-sha3-256 of text with a caller-supplied key, encoded as base64. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-256-base64 first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs an HMAC-sha3-384 of text with a caller-supplied key, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-384-base64url first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/ical-vtodo

    Call when an agent needs parsed VTODO items from iCalendar text. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/ical-vtodo first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/id-uuid-v3

    Call when an agent needs whether a string is a valid uuid-v3. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/id-uuid-v3 first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs JSON rewritten with the pretty-tab transform. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/json-pretty-tab first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs lines of text transformed with drop-empty. No network. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/lines-drop-empty first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/ngram-byte-3

    Call when an agent needs counts of byte 3-grams. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/ngram-byte-3 first.

    BaseOther

    $0.005/ request

    2026-09-23

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

    Call when an agent needs counts of char 1-grams. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/ngram-char-1 first.

    BaseOther

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/norm-nbsp-to-space

    Call when an agent needs text normalized with nbsp-to-space. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/norm-nbsp-to-space first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs text normalized with strip-zero-width. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-zero-width first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/percent-encode

    Call when an agent needs text encoded with percent. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/percent-encode first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs h6 text extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-h6 first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs JSON-LD @type BreadcrumbList extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-breadcrumb first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs JSON-LD @type Recipe extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-recipe first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

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

    Call when an agent needs meta charset values extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-charset first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs the meta keywords extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-keywords first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-nofollow-href

    Call when an agent needs hrefs of anchors with rel=nofollow extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-nofollow-href first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs og:image extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-og-image first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs og:image:alt extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-og-image-alt first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs link rel=preconnect hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-preconnect first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs link rel=search hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-search first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs summary text extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-summary first.

    BaseWeb data

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-table-headers

    Call when an agent needs th text extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-table-headers first.

    BaseWeb data

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-textarea-name

    Call when an agent needs textarea name values extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-textarea-name first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs twitter:image extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-image first.

    BaseWeb data

    $0.005/ request

    2026-09-23

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

    Call when an agent needs twitter:image:alt extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-image-alt first.

    BaseWeb data

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/quoted-printable-encode

    Call when an agent needs text encoded with quoted-printable. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/quoted-printable-encode first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/rdap

    Call when an agent needs a structured RDAP record for a public hostname (private names blocked). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/rdap first.

    BaseIdentity

    $0.005/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/readability

    Call when an agent needs Mozilla Readability article markdown from a public URL, plus title, byline, excerpt, and final_url. SSRF-safe. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/readability first.

    BaseDeveloper tools

    $0.005/ request

    2026-09-22

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

    Call when an agent needs uuid matches redacted in text. Nothing is stored. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/redact-uuid first.

    BaseDeveloper tools

    $0.005/ 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.