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-st$0.008Call when an agent needs whether an IBAN is a mod-97-valid ST number of length 25. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-iban-st first.
POST/dns-srv-minecraft$0.001Call when an agent needs SRV records at _minecraft._tcp.{hostname} for Minecraft. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-minecraft first.
POST/check-iban-mr$0.009Call when an agent needs whether an IBAN is a mod-97-valid MR number of length 27. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-iban-mr first.
POST/digest-sha3-256-base32-latin1$0.007Call when an agent needs a sha3-256 digest of latin1 bytes, encoded as base32. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-256-base32-latin1 first.
POST/check-iban-bh$0.007Call when an agent needs whether an IBAN is a mod-97-valid BH number of length 22. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-bh first.
POST/jwt-header$0.009Call when an agent needs a decoded JWT header with no signature check. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/jwt-header first.
POST/css-rss$0.004Call when an agent needs RSS autodiscovery hrefs via link[type='application/rss+xml'] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/css-rss first.
POST/css-a-title$0.003Call when an agent needs anchor titles via a[title] from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/css-a-title first.
POST/json-jcs$0.004Call when an agent needs JSON rewritten with the jcs transform. No network. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/json-jcs first.
POST/digest-sha512-base32-utf16$0.008Call when an agent needs a sha512 digest of utf16le bytes, encoded as base32. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base32-utf16 first.
POST/regex-email$0.008Call when an agent needs email addresses 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-email first.
POST/case-pascal$0.006Call when an agent needs text rewritten with the pascal case transform. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/case-pascal first.
POST/css-img-src$0.006Call when an agent needs image sources via img[src] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/css-img-src first.
POST/hmac-blake2b512-base64url$0.001Call when an agent needs an HMAC-blake2b512 of text with a caller-supplied key, encoded as base64url. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2b512-base64url first.
POST/xpath-h1$0.007Call 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.
POST/profile-h2$0.009Call when an agent needs h2 text extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-h2 first.
POST/digest-sha512-224-base64url-latin1$0.008Call when an agent needs a sha512-224 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64url-latin1 first.
POST/dns-srv-https$0.001Call when an agent needs SRV records at _https._tcp.{hostname} for HTTPS. The caller sends the registrable domain, not the underscored name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-https first.
POST/check-schema-draft-07$0.007Call when an agent needs a limited JSON Schema draft-07 check. Dialects disagree on exclusive bounds and format. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-schema-draft-07 first.
POST/extract-phones$0.003Call when an agent needs phone numbers extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/extract-phones first.
POST/base-block$0.002Call when an agent needs a Base block header and transaction hashes by number or tag latest, finalized, or safe. The hash list is capped at 100. Read-only eth_getBlockByNumber. No spend. Send JSON {"block":"latest"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-block first.
POST/css-h2$0.001Call when an agent needs h2 text via h2 from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-h2 first.
POST/norm-nfkd$0.001Call when an agent needs text normalized with nfkd. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/norm-nfkd first.
POST/check-iban-gr$0.007Call when an agent needs whether an IBAN is a mod-97-valid GR number of length 27. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-iban-gr first.
POST/dns-srv-smb$0.005Call when an agent needs SRV records at _smb._tcp.{hostname} for SMB. The caller sends the registrable domain, not the underscored name. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-smb 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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