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/norm-nfc$0.008Call when an agent needs text normalized with nfc. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/norm-nfc first.
POST/digest-blake2b512-hex-utf16$0.003Call when an agent needs a blake2b512 digest of utf16le bytes, encoded as hex. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-hex-utf16 first.
POST/cron-next-5-3$0.003Call when an agent needs the next 3 UTC times for a 5-field cron expression. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/cron-next-5-3 first.
POST/url-parts$0.001Call when an agent needs a URL split into scheme, host, path, query, and hash. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/url-parts first.
POST/token-count$0.001Call when an agent needs a heuristic token count for text using chars4 (characters/4), words, or regex. Use it to budget a prompt before calling a model. Not a model tokenizer. No LLM. Send JSON {"text":"hello world","method":"words"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/token-count first.
POST/ascii85-encode$0.005Call when an agent needs text encoded with ascii85. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/ascii85-encode first.
POST/digest-blake2b512-base64url$0.007Call when an agent needs a blake2b512 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2b512-base64url first.
POST/digest-sha512-224-base64-utf16$0.004Call when an agent needs a sha512-224 digest of utf16le bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-224-base64-utf16 first.
POST/dns-txt-dkim-cm$0.01Call when an agent needs TXT at cm._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-cm first.
POST/dns-ns$0.001Call when an agent needs NS hostnames for the public name. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/dns-ns first.
POST/regex-markdown-link$0.001Call when an agent needs markdown links extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/regex-markdown-link first.
POST/crockford-encode$0.003Call when an agent needs text encoded with crockford. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/crockford-encode first.
POST/dns-txt-dkim-selector3$0.01Call when an agent needs TXT at selector3._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-selector3 first.
POST/cron-next-5-24$0.007Call when an agent needs the next 24 UTC times for a 5-field cron expression. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/cron-next-5-24 first.
POST/profile-meta-description$0.004Call when an agent needs the meta description extracted from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-description first.
POST/dns-txt-tls-rpt$0.005Call when an agent needs TXT at _smtp._tls that starts with v=TLSRPTv1. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-tls-rpt first.
POST/sitemap-urls$0.005Call when an agent needs URLs from a sitemap or sitemap index (SSRF-safe, one index level, cap 1000). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/sitemap-urls first.
POST/newline-cr$0.008Call when an agent needs newlines normalized to cr. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/newline-cr first.
POST/dns-caa-iodef$0.005Call when an agent needs CAA records whose tag is iodef. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/dns-caa-iodef first.
POST/hmac-sha3-256-hex$0.004Call when an agent needs an HMAC-sha3-256 of text with a caller-supplied key, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha3-256-hex first.
POST/dns-srv-sips$0.004Call when an agent needs SRV records at _sips._tcp.{hostname} for SIP over TLS. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sips first.
POST/dns-srv-sip$0.003Call when an agent needs SRV records at _sip._tcp.{hostname} for SIP over TCP. The caller sends the registrable domain, not the underscored name. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-sip first.
POST/xpath-script-type$0.002Call when an agent needs type attributes of //script via //script/@type from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/xpath-script-type first.
POST/profile-jsonld-video$0.006Call when an agent needs JSON-LD @type VideoObject extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-jsonld-video first.
POST/digest-sha512-256-base64url-latin1$0.01Call when an agent needs a sha512-256 digest of latin1 bytes, encoded as base64url. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url-latin1 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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