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: 4 of the last 9 checks
Median response: 511 ms
Last checked: 16 Oct, 18:49 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.

1,193 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/json-schema-check$0.001Call when an agent needs a JSON value checked against a JSON Schema. No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/json-schema-check first.
POST/xpath-address$0.001Call when an agent needs text of //address via //address from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/xpath-address first.
POST/slug-plus-120-unicode$0.01Call when an agent needs a slug using "+", capped at 120 characters, keeping Unicode letters. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-120-unicode first.
POST/html-named-encode$0.007Call when an agent needs text encoded with html-named. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/html-named-encode first.
POST/css-dt$0.003Call when an agent needs definition term text via dt from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/css-dt first.
POST/digest-sha512-256-base64url$0.007Call when an agent needs a sha512-256 digest of text, encoded as base64url. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/digest-sha512-256-base64url first.
POST/digest-sha3-384-base64-rawhex$0.004Call when an agent needs a sha3-384 digest of hex bytes, encoded as base64. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha3-384-base64-rawhex first.
POST/profile-audio-src$0.01Call when an agent needs audio src values extracted from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/profile-audio-src first.
POST/color-hsl-to-hex$0.006Call when an agent needs a color converted with hsl-to-hex. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/color-hsl-to-hex first.
POST/xpath-footer$0.008Call when an agent needs text of //footer via //footer from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/xpath-footer first.
POST/slug-underscore-40-unicode$0.006Call when an agent needs a slug using "_", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-40-unicode first.
POST/check-semver-strict$0.01Call when an agent needs whether a string is strict semver without a leading v. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/check-semver-strict first.
POST/base-gas$0.001Call when an agent needs the latest Base base fee, max priority fee, and gas price. Send block latest, or omit it. Read-only eth_getBlockByNumber, eth_maxPriorityFeePerGas, and eth_gasPrice. No address. Send JSON {"block":"latest"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/base-gas first.
POST/check-iban-by$0.009Call when an agent needs whether an IBAN is a mod-97-valid BY number of length 28. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-iban-by first.
POST/newline-collapse$0.009Call when an agent needs newlines normalized to collapse. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/newline-collapse first.
POST/dns-srv-scanner$0.004Call when an agent needs SRV records at _scanner._tcp.{hostname} for scanner. The caller sends the registrable domain, not the underscored name. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/dns-srv-scanner first.
POST/profile-dc-creator$0.003Call when an agent needs dc.creator extracted from a public page or HTML (SSRF-safe). Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/profile-dc-creator first.
POST/checksum-crc16-hex$0.001Call when an agent needs a crc16 checksum of text as hex. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/checksum-crc16-hex first.
POST/html-numeric-encode$0.009Call when an agent needs text encoded with html-numeric. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/html-numeric-encode first.
POST/slug-plus-24-ascii$0.003Call when an agent needs a slug using "+", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-24-ascii first.
POST/slug-dot-80-unicode$0.008Call when an agent needs a slug using ".", capped at 80 characters, keeping Unicode letters. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/slug-dot-80-unicode first.
POST/tls-wildcard$0.009Call when an agent needs whether any SAN on port 443 is a wildcard DNS name. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/tls-wildcard first.
POST/digest-blake2s256-base64-latin1$0.009Call when an agent needs a blake2s256 digest of latin1 bytes, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/digest-blake2s256-base64-latin1 first.
POST/check-vat-hu$0.008Call when an agent needs whether a HU VAT checksum is valid. No registry lookup. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/check-vat-hu first.
POST/hmac-sha384-base64$0.009Call when an agent needs an HMAC-sha384 of text with a caller-supplied key, encoded as base64. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha384-base64 first.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 1,193 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.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
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 16 Oct, 18:49 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.

Something wrong on this page? Tell us.