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/hmac-blake2s256-hex

    Call when an agent needs an HMAC-blake2s256 of text with a caller-supplied key, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2s256-hex first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-sha256-base64url

    Call when an agent needs an HMAC-sha256 of text with a caller-supplied key, encoded as base64url. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha256-base64url first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/hmac-sha3-512-base64

    Call when an agent needs an HMAC-sha3-512 of text with a caller-supplied key, encoded as base64. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-512-base64 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs text encoded with html-named. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/html-named-encode first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs parsed VFREEBUSY items from iCalendar text. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/ical-vfreebusy first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs whether a string is a valid uuid-v5. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/id-uuid-v5 first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs lines of text transformed with sort-asc. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/lines-sort-asc first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs lines of text transformed with sort-length. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/lines-sort-length first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs text encoded with morse. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/morse-encode first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs newlines normalized to crlf. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/newline-crlf first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs counts of char 3-grams. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/ngram-char-3 first.

    BaseOther

    $0.007/ request

    2026-09-23

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

    Call when an agent needs text normalized with tabs-to-spaces. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/norm-tabs-to-spaces first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs application-name extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-application-name first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/profile-aria-label

    Call when an agent needs aria-label values extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-aria-label first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs cite text extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-cite first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs link rel containing icon, excluding apple and mask extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-icon first.

    BaseWeb data

    $0.007/ request

    2026-09-22

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

    Call when an agent needs img src values extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-img-src first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs input name values extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-input-name first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs JSON-LD @type Review extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-review first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs main text extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-main first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs the meta robots directive extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-robots first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs og:image:height extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-og-image-height first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs og:type extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-og-type first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs link rel=preload hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-preload first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs source srcset values extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-source-srcset first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs twitter:creator extracted from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/profile-twitter-creator first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs bearer matches redacted in text. Nothing is stored. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/redact-bearer first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs email matches redacted in text. Nothing is stored. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/redact-email first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs BIC codes extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/regex-bic first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/regex-credit-card

    Call when an agent needs 13–19 digit card-shaped numbers extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/regex-credit-card first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs IBAN-shaped tokens extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/regex-iban first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

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

    Call when an agent needs a slug using ".", capped at 80 characters, ASCII-folded. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-80-ascii first.

    BaseOther

    $0.007/ request

    2026-09-23

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

    Call when an agent needs a slug using "-", capped at 80 characters, ASCII-folded. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-80-ascii first.

    BaseOther

    $0.007/ request

    2026-09-23

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

    Call when an agent needs a slug using "+", capped at 80 characters, ASCII-folded. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-80-ascii first.

    BaseOther

    $0.007/ request

    2026-09-23

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

    Call when an agent needs a slug using "~", capped at 80 characters, ASCII-folded. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/slug-tilde-80-ascii first.

    BaseOther

    $0.007/ request

    2026-09-23

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

    Call when an agent needs a slug using "_", capped at 80 characters, ASCII-folded. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-80-ascii first.

    BaseOther

    $0.007/ request

    2026-09-23

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

    Call when an agent needs a certificate summary for TCP 8443, not 443. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/tls-alt first.

    BaseIdentity

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/tls-expiry-60

    Call when an agent needs whether the port-443 certificate stays valid for at least 60 days. The threshold changes the ok_check bit. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/tls-expiry-60 first.

    BaseIdentity

    $0.007/ request

    2026-09-23

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

    Call when an agent needs text of //h1 via //h1 from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-h1 first.

    BaseWeb data

    $0.007/ request

    2026-09-22

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

    Call when an agent needs text of //header via //header from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-header first.

    BaseDeveloper tools

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-iframe-src

    Call when an agent needs src attributes of //iframe via //iframe/@src from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-iframe-src first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/xpath-input-name

    Call when an agent needs name attributes of //input via //input/@name from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-input-name first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs text of //mark via //mark from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-mark first.

    BaseWeb data

    $0.007/ request

    2026-09-23

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

    Call when an agent needs text of //option via //option from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-option first.

    BaseWeb data

    $0.007/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/base32-decode

    Call when an agent needs text decoded with base32. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/base32-decode first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/base36-decode

    Call when an agent needs text decoded with base36. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/base36-decode first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/case-kebab

    Call when an agent needs text rewritten with the kebab case transform. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/case-kebab first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-card-mastercard

    Call when an agent needs whether a number passes Luhn and matches mastercard. Nothing is stored. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-card-mastercard first.

    BaseOther

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-color-hsl

    Call when an agent needs whether a string is an hsl() color. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-color-hsl first.

    BaseDeveloper tools

    $0.008/ request

    2026-09-23

  • https://agentshelf.syntexa.ch/v1/check-ean-8

    Call when an agent needs whether an 8-digit EAN passes Luhn. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-ean-8 first.

    BaseOther

    $0.008/ 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.