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/xpath-source-src$0.008Call when an agent needs src attributes of //source via //source/@src from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/xpath-source-src first.
POST/regex-issn$0.01Call when an agent needs ISSN tokens extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/regex-issn first.
POST/dns-a$0.006Call when an agent needs IPv4 addresses only. Empty is an error, unlike the bundled dns-lookup SKU. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/dns-a first.
POST/check-iban-ie$0.009Call when an agent needs whether an IBAN is a mod-97-valid IE number of length 22. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-iban-ie first.
POST/bytes-iec$0.006Call when an agent needs a IEC (1024) byte size parsed to an integer. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/bytes-iec first.
POST/dns-txt-dkim-mailgun$0.005Call 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.
POST/base62-decode$0.01Call when an agent needs text decoded with base62. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/base62-decode first.
POST/case-sponge$0.005Call when an agent needs text rewritten with the sponge case transform. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/case-sponge first.
POST/digest-sha512-224-base64url-rawhex$0.009Call 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.
POST/slug-hyphen-24-unicode$0.004Call when an agent needs a slug using "-", capped at 24 characters, keeping Unicode letters. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/slug-hyphen-24-unicode first.
POST/check-iban-cz$0.008Call when an agent needs whether an IBAN is a mod-97-valid CZ number of length 24. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-cz first.
POST/case-train$0.01Call when an agent needs text rewritten with the train case transform. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/case-train first.
POST/tls-alt$0.007Call when an agent needs a certificate summary for TCP 8443, not 443. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/tls-alt first.
POST/xpath-og-image$0.005Call when an agent needs content of meta property=og:image via //meta[@property='og:image']/@content from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-og-image first.
POST/check-iban-sk$0.004Call when an agent needs whether an IBAN is a mod-97-valid SK number of length 24. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-sk first.
POST/dns-caa-issue$0.003Call when an agent needs CAA records whose tag is issue, not issuewild. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-caa-issue first.
POST/check-mac-colon$0.001Call when an agent needs whether a string is a colon-separated MAC address. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-mac-colon first.
POST/profile-twitter-image$0.005Call 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.
POST/regex-hashtag$0.008Call 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.
POST/tls-expiry-14$0.005Call when an agent needs whether the port-443 certificate stays valid for at least 14 days. The threshold changes the ok_check bit. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/tls-expiry-14 first.
POST/xpath-a-hreflang$0.01Call when an agent needs hreflang attributes of //a via //a/@hreflang from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/xpath-a-hreflang first.
POST/profile-html-lang$0.002Call when an agent needs the html lang attribute extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-html-lang first.
POST/robots-allowed$0.003Call when an agent needs a path checked against a site's robots.txt (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/robots-allowed first.
POST/check-iban-no$0.003Call when an agent needs whether an IBAN is a mod-97-valid NO number of length 15. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-iban-no first.
POST/dns-srv-sip-udp$0.004Call when an agent needs SRV records at _sip._udp.{hostname} for SIP over UDP. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sip-udp 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.

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