Discover / agentshelf.syntexa.ch

AgentShelf

■ Challenge detected

Call when an agent needs published and modified dates extracted from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/article-dates first.

x402
Base
USDC
Other

Listed price: $0.004
Challenge detected: 5 of the last 10 checks
Median response: 509 ms
Last checked: 17 Oct, 18:25 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://agentshelf.syntexa.ch/v1/article-dates
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

1,215 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://agentshelf.syntexa.ch/v1

POST/regex-ipv6$0.001Call when an agent needs IPv6 addresses extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/regex-ipv6 first.
POST/profile-rel-next$0.003Call when an agent needs link rel=next hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-next first.
POST/extract-jsonld$0.004Call when an agent needs JSON-LD blocks extracted from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/extract-jsonld first.
POST/check-upc-e$0.01Call when an agent needs whether an 8-digit UPC-E-shaped number passes Luhn. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-upc-e first.
POST/profile-a-title$0.001Call 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.
POST/dns-soa$0.002Call when an agent needs SOA as ns, hostmaster, serial, refresh, retry, expire, minimum. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-soa first.
POST/phone-e164$0.002Call when an agent needs a phone number normalized to E.164 when the country is known. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/phone-e164 first.
POST/check-bic$0.004Call when an agent needs whether a string has a BIC/SWIFT shape. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-bic first.
POST/check-iban-gt$0.007Call when an agent needs whether an IBAN is a mod-97-valid GT number of length 28. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gt first.
POST/profile-rel-dns-prefetch$0.006Call when an agent needs link rel=dns-prefetch hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-dns-prefetch first.
POST/slug-dot-120-ascii$0.009Call when an agent needs a slug using ".", capped at 120 characters, ASCII-folded. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-120-ascii first.
POST/check-iban-mu$0.01Call when an agent needs whether an IBAN is a mod-97-valid MU number of length 30. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-iban-mu first.
POST/xpath-summary$0.003Call when an agent needs text of //summary via //summary from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/xpath-summary first.
POST/newline-lf-final$0.001Call 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.
POST/profile-article-author$0.001Call 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.
POST/x402-ping$0.001Call when an agent needs a cheap confirmation that an x402 wallet payment can settle. Returns server UTC time, the verified payer, and an HMAC-free receipt. Send an optional note, or an empty object. Send JSON {"note":"wallet"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/x402-ping first.
POST/dns-srv-sipfederationtls$0.004Call when an agent needs SRV records at _sipfederationtls._tcp.{hostname} for SIP federation TLS. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sipfederationtls first.
POST/profile-meta-viewport$0.008Call 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.
POST/profile-citation-title$0.001Call 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.
POST/digest-sha384-hex-rawhex$0.009Call 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.
POST/dns-txt-dkim-smtp$0.001Call 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.
POST/digest-sha256-base64-latin1$0.009Call when an agent needs a sha256 digest of latin1 bytes, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base64-latin1 first.
POST/digest-sha1-base64$0.006Call when an agent needs a sha1 digest of text, encoded as base64. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-base64 first.
POST/hmac-md5-base64url$0.001Call 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.
POST/css-figcaption$0.01Call when an agent needs figcaption text via figcaption from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/css-figcaption first.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 1,215 listed endpoints. Next endpoints First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/agentshelf.syntexa.ch

Recent checks

4 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
17 Oct, 18:25 UTC	Challenge detected	402	390ms
16 Oct, 18:49 UTC	Challenge detected	402	513ms
15 Oct, 14:11 UTC	Challenge detected	402	509ms
14 Oct, 08:45 UTC	Challenge detected	402	432ms
12 Oct, 10:53 UTC	No challenge detected	200	443ms
10 Oct, 15:44 UTC	No challenge detected	200	524ms
9 Oct, 09:34 UTC	No challenge detected	200	428ms
8 Oct, 03:32 UTC	No challenge detected	200	403ms
7 Oct, 03:32 UTC	Challenge detected	402	551ms
4 Oct, 05:04 UTC	No challenge detected	404	443ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 18:25 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for AgentShelf?

Its listed price is $0.004.

What payment terms does AgentShelf advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is AgentShelf listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

Something wrong on this page? Tell us.