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/dns-srv-h323

    Call when an agent needs SRV records at _h323._tcp.{hostname} for H.323. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-h323 first.

    BaseIdentity

    $0.008/ request

    2026-09-23

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

    Call when an agent needs SRV records at _ldaps._tcp.{hostname} for LDAPS. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-ldaps first.

    BaseIdentity

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-pop3

    Call when an agent needs SRV records at _pop3._tcp.{hostname} for POP3. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-pop3 first.

    BaseIdentity

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/dns-srv-pop3s

    Call when an agent needs SRV records at _pop3s._tcp.{hostname} for POP3 over TLS. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-pop3s first.

    BaseIdentity

    $0.008/ request

    2026-09-23

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

    Call when an agent needs SRV records at _sieve._tcp.{hostname} for ManageSieve. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sieve first.

    BaseIdentity

    $0.008/ request

    2026-09-23

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

    Call when an agent needs SRV records at _turns._tcp.{hostname} for TURNS. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-turns first.

    BaseIdentity

    $0.008/ request

    2026-09-23

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

    Call when an agent needs SRV records at _valheim._udp.{hostname} for Valheim. The caller sends the registrable domain, not the underscored name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-valheim first.

    BaseIdentity

    $0.008/ request

    2026-09-23

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

    Call when an agent needs TXT at default._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-default first.

    BaseIdentity

    $0.008/ request

    2026-09-22

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

    Call when an agent needs TXT at fastmail._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-fastmail first.

    BaseIdentity

    $0.008/ request

    2026-09-22

  • https://agentshelf.syntexa.ch/v1/dns-txt-dkim-k2

    Call when an agent needs TXT at k2._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-k2 first.

    BaseIdentity

    $0.008/ request

    2026-09-22

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

    Call when an agent needs TXT at _report._dmarc, unfiltered. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dmarc-report first.

    BaseIdentity

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-blake2s256-base64

    Call when an agent needs an HMAC-blake2s256 of text with a caller-supplied key, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2s256-base64 first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs an HMAC-sha3-512 of text with a caller-supplied key, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-512-base64url first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs an HMAC-sha384 of text with a caller-supplied key, encoded as hex. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha384-hex first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/html-named-decode

    Call when an agent needs text decoded with html-named. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/html-named-decode first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs parsed iCalendar items of every supported component. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/ical-all first.

    BaseOther

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/id-uuid-v7

    Call when an agent needs whether a string is a valid uuid-v7. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/id-uuid-v7 first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs lines of text transformed with sort-ci. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/lines-sort-ci first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs lines of text transformed with sort-desc. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/lines-sort-desc first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs text decoded with morse. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/morse-decode first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs newlines normalized to cr. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/newline-cr first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/ngram-char-4

    Call when an agent needs counts of char 4-grams. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/ngram-char-4 first.

    BaseOther

    $0.008/ request

    2026-09-23

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

    Call when an agent needs text normalized with nfc. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/norm-nfc first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/norm-spaces-to-tabs

    Call when an agent needs text normalized with spaces-to-tabs. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/norm-spaces-to-tabs first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs aside text extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-aside first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs button text extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-button-text first.

    BaseWeb data

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-h1

    Call when an agent needs h1 text extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-h1 first.

    BaseWeb data

    $0.008/ request

    2026-09-22

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

    Call when an agent needs apple-touch-icon hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-icon-apple first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs img data-src values extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-img-data-src first.

    BaseWeb data

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-img-srcset

    Call when an agent needs img srcset values extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-img-srcset first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs JSON-LD @type HowTo extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-howto first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs the meta viewport extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-viewport first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs og:image:type extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-og-image-type first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs og:site_name extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-og-site-name first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs q text extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-q first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs the referrer meta value extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-referrer first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs link rel=modulepreload hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-modulepreload first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs role values extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-role first.

    BaseWeb data

    $0.008/ request

    2026-09-23

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

    Call when an agent needs phone matches redacted in text. Nothing is stored. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/redact-phone first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs ssn matches redacted in text. Nothing is stored. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/redact-ssn first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs email addresses extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/regex-email first.

    BaseIdentity

    $0.008/ request

    2026-09-23

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

    Call when an agent needs hashtags extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/regex-hashtag first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs ISBN-13 digit strings extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/regex-isbn first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

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

    Call when an agent needs VIN-shaped tokens extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/regex-vin first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-dot-80-unicode

    Call when an agent needs a slug using ".", capped at 80 characters, keeping Unicode letters. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-80-unicode first.

    BaseCommerce

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-hyphen-80-unicode

    Call when an agent needs a slug using "-", capped at 80 characters, keeping Unicode letters. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-80-unicode first.

    BaseCommerce

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-plus-80-unicode

    Call when an agent needs a slug using "+", capped at 80 characters, keeping Unicode letters. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-80-unicode first.

    BaseCommerce

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-tilde-80-unicode

    Call when an agent needs a slug using "~", capped at 80 characters, keeping Unicode letters. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-80-unicode first.

    BaseCommerce

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/slug-underscore-80-unicode

    Call when an agent needs a slug using "_", capped at 80 characters, keeping Unicode letters. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-80-unicode first.

    BaseCommerce

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/tech-hints

    Call when an agent needs lightweight stack hints from response headers + HTML (generator, x-powered-by, fingerprints, analytics booleans). No browser. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/tech-hints first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-22

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.