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/check-iban-al$0.004Call when an agent needs whether an IBAN is a mod-97-valid AL number of length 28. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-al first.
POST/dns-srv-matrix-fed$0.005Call when an agent needs SRV records at _matrix-fed._tcp.{hostname} for Matrix federation. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-matrix-fed first.
POST/slug-plus-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-plus-120-ascii first.
POST/duration-units$0.004Call when an agent needs a units duration converted to seconds. No network. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/duration-units first.
POST/base45-decode$0.002Call when an agent needs text decoded with base45. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/base45-decode first.
POST/dns-srv-vlmcs$0.006Call when an agent needs SRV records at _vlmcs._tcp.{hostname} for KMS. The caller sends the registrable domain, not the underscored name. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-vlmcs first.
POST/dns-srv-hkps$0.009Call when an agent needs SRV records at _hkps._tcp.{hostname} for HKPS. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-hkps first.
POST/xpath-caption$0.002Call when an agent needs text of //caption via //caption from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/xpath-caption first.
POST/cron-next-6-3$0.009Call when an agent needs the next 3 UTC times for a 6-field cron expression. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/cron-next-6-3 first.
POST/dns-srv-submission$0.009Call when an agent needs SRV records at _submission._tcp.{hostname} for mail submission. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-submission first.
POST/uuid-name-v5-dns$0.001Call when an agent needs a deterministic UUID v5 in the dns namespace. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/uuid-name-v5-dns first.
POST/xpath-header$0.007Call 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.
POST/css-audio-src$0.002Call when an agent needs audio sources via audio[src] from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/css-audio-src first.
POST/dns-srv-mumble$0.01Call when an agent needs SRV records at _mumble._tcp.{hostname} for Mumble. The caller sends the registrable domain, not the underscored name. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-mumble first.
POST/profile-jsonld-product$0.003Call when an agent needs JSON-LD @type Product extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-product first.
POST/digest-sha3-224-base32-latin1$0.005Call when an agent needs a sha3-224 digest of latin1 bytes, encoded as base32. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base32-latin1 first.
POST/check-mod97$0.003Call when an agent needs whether a numeric string is 1 mod 97. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-mod97 first.
POST/id-uuid$0.003Call when an agent needs whether a string is a valid uuid. No network. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/id-uuid first.
POST/check-iban-lc$0.004Call when an agent needs whether an IBAN is a mod-97-valid LC number of length 32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/check-iban-lc first.
POST/profile-rel-help$0.002Call when an agent needs link rel=help hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-help first.
POST/regex-cidr$0.009Call when an agent needs IPv4 CIDR blocks extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/regex-cidr first.
POST/digest-sha512-256-base32-rawhex$0.004Call when an agent needs a sha512-256 digest of hex bytes, encoded as base32. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base32-rawhex first.
POST/check-vat-bg$0.003Call when an agent needs whether a BG VAT checksum is valid. No registry lookup. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-vat-bg first.
POST/profile-option$0.004Call when an agent needs option text extracted from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/profile-option first.
POST/profile-jsonld-dataset$0.01Call when an agent needs JSON-LD @type Dataset extracted from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-dataset 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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