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agentshelf.syntexa.ch Regex Hashtag Extractor
x402
agentshelf.syntexa.ch Regex Hashtag Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-02).
Extracts all hashtags from a given text string using regex, returning up to 20 matches.
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs hashtags extracted from text, capped at 20 matches. An empty match list is billed. No network. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/regex-hashtag first.
Output
Returns a list of up to 20 hashtag strings found in the input text (e.g. ['#travel', '#photography']). If no hashtags are present, an empty list is returned — but the call is still billed.
Example use cases
Hashtag audit for social posts
“Here's the draft caption for our Instagram post: 'Big news! #Launch #ProductUpdate #TechNews #Startup — we just shipped v2.' Can you extract all the hashtags so I can review them before scheduling?”
Hashtag count from user-generated content
“I have this user comment: 'Best day ever! #sunshine #beach #summer2024 #nofilter #blessed' — pull out every hashtag in it so I can track which ones appear most often.”
Filtering hashtags from raw scraped text
“I scraped this chunk of text from a forum post: 'Check out our #deals and #offers this week — #sale #discount #limitedtime.' Extract all the hashtags from it for me.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/regex-hashtag?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, deterministic, regex-based hashtag extraction from text without any LLM or network dependency. Prefer the free sandbox endpoint POST /v1/sandbox/regex-hashtag first if available; fall back to this paid endpoint only when the sandbox is unavailable or not suitable. Best for agents processing social media content, user-generated text, or marketing copy where reliable hashtag parsing is needed at low cost.
Side effects
- Empty input or missing 'text' field returns a validation error
- Text exceeding 100,000 characters is rejected
- No hashtags found returns an empty match list but still incurs the $0.008 USDC charge
- Malformed JSON body causes a 400 error
- Insufficient USDC balance or x402 payment failure blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input for this SKU. The route description says whether it is plain text, a URL, base64 bytes, or an already-encoded token. |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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