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/readability$0.005Call when an agent needs Mozilla Readability article markdown from a public URL, plus title, byline, excerpt, and final_url. SSRF-safe. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/readability first.
POST/hmac-sha3-384-base64url$0.005Call when an agent needs an HMAC-sha3-384 of text with a caller-supplied key, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-384-base64url first.
POST/base58check-p2pkh-decode$0.004Call when an agent needs text decoded with base58check-p2pkh. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/base58check-p2pkh-decode first.
POST/id-uuid-v7$0.008Call when an agent needs whether a string is a valid uuid-v7. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/id-uuid-v7 first.
POST/digest-sha512-224-base64-rawhex$0.006Call when an agent needs a sha512-224 digest of hex bytes, encoded as base64. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64-rawhex first.
POST/hmac-blake2b512-hex$0.009Call when an agent needs an HMAC-blake2b512 of text with a caller-supplied key, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-blake2b512-hex first.
POST/css-html-lang$0.009Call when an agent needs html lang via html[lang] from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/css-html-lang first.
POST/json-pretty-2$0.009Call when an agent needs JSON rewritten with the pretty-2 transform. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/json-pretty-2 first.
POST/profile-jsonld-local-business$0.002Call when an agent needs JSON-LD @type LocalBusiness extracted from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-local-business first.
POST/check-color-hex$0.006Call when an agent needs whether a string is a hex color. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-color-hex first.
POST/check-date-date$0.01Call when an agent needs whether a string is a real YYYY-MM-DD date. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-date-date first.
POST/digest-md5-base64-utf16$0.004Call when an agent needs a md5 digest of utf16le bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64-utf16 first.
POST/profile-rel-author$0.01Call when an agent needs link rel=author hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-author first.
POST/digest-md5-base64url-latin1$0.008Call when an agent needs a md5 digest of latin1 bytes, encoded as base64url. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base64url-latin1 first.
POST/digest-sha3-512-hex$0.001Call when an agent needs a sha3-512 digest of text, encoded as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-512-hex first.
POST/xpath-button$0.009Call when an agent needs text of //button via //button from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-button first.
POST/profile-rel-stylesheet$0.004Call when an agent needs link rel=stylesheet hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-stylesheet first.
POST/digest-sha384-base32-rawhex$0.008Call when an agent needs a sha384 digest of hex bytes, encoded as base32. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-sha384-base32-rawhex first.
POST/checksum-fletcher32-dec$0.008Call when an agent needs a fletcher32 checksum of text as dec. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/checksum-fletcher32-dec first.
POST/norm-nfkc$0.01Call when an agent needs text normalized with nfkc. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/norm-nfkc first.
POST/profile-textarea-name$0.005Call when an agent needs textarea name values extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-textarea-name first.
POST/xpath-time$0.005Call when an agent needs datetime attributes of //time via //time/@datetime from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-time first.
POST/checksum-crc32c-hex$0.007Call when an agent needs a crc32c checksum of text as hex. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc32c-hex first.
POST/profile-referrer$0.008Call when an agent needs the referrer meta value extracted from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/profile-referrer first.
POST/css-aria-label$0.007Call when an agent needs aria-label values via [aria-label] from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/css-aria-label 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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