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/digest-sha3-224-base64-latin1$0.009Call when an agent needs a sha3-224 digest of latin1 bytes, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-224-base64-latin1 first.
POST/digest-sha256-base32-latin1$0.005Call when an agent needs a sha256 digest of latin1 bytes, encoded as base32. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha256-base32-latin1 first.
POST/base58-encode$0.001Call when an agent needs text encoded with base58. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/base58-encode first.
POST/check-phone-e164$0.001Call when an agent needs whether a phone number matches E.164. No carrier lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-phone-e164 first.
POST/digest-sha512-base64url-utf16$0.005Call when an agent needs a sha512 digest of utf16le bytes, encoded as base64url. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base64url-utf16 first.
POST/norm-strip-emoji$0.004Call when an agent needs text normalized with strip-emoji. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-emoji first.
POST/check-iban-lv$0.006Call when an agent needs whether an IBAN is a mod-97-valid LV number of length 21. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-iban-lv first.
POST/json-pretty-4$0.01Call when an agent needs JSON rewritten with the pretty-4 transform. No network. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/json-pretty-4 first.
POST/norm-strip-control$0.009Call when an agent needs text normalized with strip-control. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-control first.
POST/css-itemprop$0.009Call when an agent needs itemprop values via [itemprop] from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/css-itemprop first.
POST/regex-html-tag$0.002Call when an agent needs HTML tags extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/regex-html-tag first.
POST/digest-sha512-base32$0.01Call when an agent needs a sha512 digest of text, encoded as base32. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-base32 first.
POST/lines-unique-ci$0.001Call when an agent needs lines of text transformed with unique-ci. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/lines-unique-ci first.
POST/xpath-img-alt$0.001Call when an agent needs alt attributes of //img via //img/@alt from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/xpath-img-alt first.
POST/digest-ripemd160-hex-rawhex$0.009Call when an agent needs a ripemd160 digest of hex bytes, encoded as hex. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-ripemd160-hex-rawhex first.
POST/checksum-fletcher16-dec$0.006Call when an agent needs a fletcher16 checksum of text as dec. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/checksum-fletcher16-dec first.
POST/lines-uppercase$0.01Call when an agent needs lines of text transformed with uppercase. No network. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/lines-uppercase first.
POST/css-atom$0.005Call when an agent needs Atom autodiscovery hrefs via link[type='application/atom+xml'] from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/css-atom first.
POST/digest-blake2s256-base64-utf16$0.008Call when an agent needs a blake2s256 digest of utf16le bytes, encoded as base64. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64-utf16 first.
POST/check-vat-pl$0.001Call when an agent needs whether a PL VAT checksum is valid. No registry lookup. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/check-vat-pl first.
POST/regex-mention$0.009Call when an agent needs at-mentions 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-mention first.
POST/digest-md5-base32$0.004Call when an agent needs a md5 digest of text, encoded as base32. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-md5-base32 first.
POST/css-q$0.002Call when an agent needs inline quote text via q from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/css-q first.
POST/dns-srv-matrix$0.009Call when an agent needs SRV records at _matrix._tcp.{hostname} for Matrix. The caller sends the registrable domain, not the underscored name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-matrix first.
POST/uuid-name-v5-url$0.002Call when an agent needs a deterministic UUID v5 in the url namespace. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/uuid-name-v5-url 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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