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.

1,215 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/xpath-aside$0.006Call when an agent needs text of //aside via //aside from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-aside first.
POST/slug-tilde-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-tilde-40-unicode first.
POST/csv-to-json$0.002Call when an agent needs a CSV table converted to a JSON array of objects. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/csv-to-json first.
POST/check-iban-mc$0.005Call when an agent needs whether an IBAN is a mod-97-valid MC number of length 27. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/check-iban-mc first.
POST/lines-longest$0.006Call when an agent needs lines of text transformed with longest. No network. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/lines-longest first.
POST/ngram-char-3$0.007Call when an agent needs counts of char 3-grams. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/ngram-char-3 first.
POST/digest-sha224-base32$0.01Call when an agent needs a sha224 digest of text, encoded as base32. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/digest-sha224-base32 first.
POST/eth-contract-info$0.003Call when an agent needs is_contract, bytecode size and hash, EIP-1967 and legacy OpenZeppelin proxy slots, and owner() for one Ethereum mainnet address. An EOA is is_contract false. Read-only. No spend. Send JSON {"address":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/eth-contract-info first.
POST/norm-spaces-to-tabs$0.008Call when an agent needs text normalized with spaces-to-tabs. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/norm-spaces-to-tabs first.
POST/base-eth-call$0.004Call when an agent needs a read-only Base eth_call. Send to and data (hex) or a function signature plus args. Optional from and block. Reverts return a decoded reason. No state change and no spend. Send JSON {"to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","data":"0x18160ddd"}. Exact $0.004 USDC on Base. Try unpaid POST /v1/sandbox/base-eth-call first.
POST/cron-next-6-24$0.003Call when an agent needs the next 24 UTC times for a 6-field cron expression. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/cron-next-6-24 first.
POST/profile-rel-license$0.001Call when an agent needs link rel=license hrefs extracted from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/profile-rel-license first.
POST/css-video-poster$0.001Call when an agent needs video posters via video[poster] from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/css-video-poster first.
POST/norm-nfd$0.009Call when an agent needs text normalized with nfd. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/norm-nfd first.
POST/xpath-h3$0.01Call when an agent needs text of //h3 via //h3 from a public page or HTML (SSRF-safe). Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/xpath-h3 first.
POST/lang-detect$0.002Call when an agent needs a heuristic language guess for text. No LLM and no network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/lang-detect first.
POST/slug-hyphen-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-hyphen-120-unicode first.
POST/diff-lines$0.009Call when an agent needs a lines diff of two strings. No network. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/diff-lines first.
POST/digest-sha1-hex-latin1$0.004Call when an agent needs a sha1 digest of latin1 bytes, encoded as hex. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/digest-sha1-hex-latin1 first.
POST/morse-encode$0.007Call when an agent needs text encoded with morse. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/morse-encode first.
POST/css-meta-description$0.005Call when an agent needs meta description content via meta[name='description'] from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/css-meta-description first.
POST/check-ip-ipv4$0.007Call when an agent needs whether a string is an IPv4 address. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/check-ip-ipv4 first.
POST/profile-figcaption$0.006Call when an agent needs figcaption text extracted from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/profile-figcaption first.
POST/slug-underscore-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-underscore-120-unicode first.
POST/ssl-check$0.004Call when an agent needs a TLS certificate summary for a public host or URL (private IPs blocked). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/ssl-check 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.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.

Payment

Protocol: x402 · exact
Chain: Base
Asset: USDC
Amount: 4000 atomic USDC
Paid to: 0x1D61…5a38
Facilitator: cdp

From its payment challenge on 16 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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