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/profile-jsonld-faq$0.006Call when an agent needs JSON-LD @type FAQPage extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-faq first.
POST/profile-rel-preconnect$0.005Call 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.
POST/dns-txt-dkim-mail$0.005Call 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.
POST/check-email-rfc$0.007Call when an agent needs whether an email address has a usable syntax. No mailbox lookup. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-email-rfc first.
POST/base32-encode$0.007Call when an agent needs text encoded with base32. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/base32-encode first.
POST/redact-uuid$0.005Call when an agent needs uuid matches redacted in text. Nothing is stored. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/redact-uuid first.
POST/digest-sha512-256-base64-utf16$0.006Call when an agent needs a sha512-256 digest of utf16le bytes, encoded as base64. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64-utf16 first.
POST/digest-sha3-384-hex-utf16$0.009Call when an agent needs a sha3-384 digest of utf16le bytes, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-hex-utf16 first.
POST/profile-jsonld-software$0.001Call when an agent needs JSON-LD @type SoftwareApplication extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-software first.
POST/digest-blake2s256-base32-utf16$0.004Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base32-utf16 first.
POST/digest-sha3-512-base32$0.004Call when an agent needs a sha3-512 digest of text, encoded as base32. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-base32 first.
POST/base32-decode$0.008Call 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.
POST/xpath-input-name$0.007Call 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.
POST/check-isbn-13$0.005Call when an agent needs whether an ISBN-13 checksum is valid. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-isbn-13 first.
POST/digest-blake2b512-base64-rawhex$0.008Call when an agent needs a blake2b512 digest of hex bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64-rawhex first.
POST/slug-plus-80-ascii$0.007Call 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.
POST/slug-underscore-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-underscore-24-unicode first.
POST/dns-txt-dkim-s1$0.002Call when an agent needs TXT at s1._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-s1 first.
POST/check-schema-2020-12$0.009Call when an agent needs a limited JSON Schema 2020-12 check. Dialects disagree on exclusive bounds and format. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-schema-2020-12 first.
POST/dns-srv-ipps$0.002Call when an agent needs SRV records at _ipps._tcp.{hostname} for IPPS. The caller sends the registrable domain, not the underscored name. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-ipps first.
POST/xpath-img-src$0.01Call when an agent needs src attributes of //img via //img/@src from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/xpath-img-src first.
POST/digest-sha3-224-base64-utf16$0.008Call when an agent needs a sha3-224 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base64-utf16 first.
POST/digest-ripemd160-hex-utf16$0.007Call when an agent needs a ripemd160 digest of utf16le bytes, encoded as hex. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-ripemd160-hex-utf16 first.
POST/hmac-sha3-512-base64$0.007Call 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.
POST/base36-encode$0.007Call when an agent needs text encoded with base36. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/base36-encode 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.

Payment

Protocol: x402 · exact
Chain: Base
Asset: USDC
Amount: 4000 atomic USDC
Paid to: 0x1D61…5a38
Facilitator: cdp

From its payment challenge on 17 Oct 2026.

Check the seller's current payment challenge and authentication requirements before paying. A listing doesn't mean a service works with Superstables. To try a budget or a single purchase, see the services you can try on testnet.

Listed in

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