pylon_chain
[Pylon] Execute a multi-step workflow. Describe a pipeline of actions and Pylon will plan and execute them sequentially, piping outputs between steps.
LABSCO SUMMARY
A per-call price list instead of a signup, which changes what is worth automating.
Every capability carries its price in the tool table, so the cost of a run is knowable before it starts rather than discovered on an invoice. pylon_chain is the piece that makes it more than a menu: scrape a page, convert the result, host the file — planned and executed as one request instead of three round trips through the model.
What it is
A gateway to Pylon's capability catalog. Each capability is its own tool with its own per-call price, and three meta tools route a described task, chain several into a pipeline, or search for what is available.
What you get
- A task described in plain language and routed to whichever capability fits — pylon_do
- A multi-step pipeline planned and executed in order, with each step's output piped into the next — pylon_chain
- Capability search across both Pylon's own catalog and the x402 bazaar — pylon_discover
- Web work priced per call: screenshots and scraping at $0.01, web search at $0.003 — pylon_screenshot, pylon_web_scrape, pylon_search
- Documents in and out: PDF text extraction, OCR from images, and markdown or HTML converted to PDF — pylon_pdf_parse, pylon_ocr, pylon_md_to_pdf, pylon_html_to_pdf
- Network and identity checks: domain intelligence over WHOIS, DNS and SSL, DNS lookups, IP geolocation and email validation — pylon_domain_intel, pylon_dns_lookup, pylon_ip_geo, pylon_email_validate
- Small utilities that are otherwise a dependency each: QR codes, image resizing, URL shortening, JSON/CSV/XML/YAML conversion, document generation from templates, and file hosting
- Two resources the agent can read directly: the full capability list with schemas and pricing, and live service status with circuit-breaker states
Requirements
No API key, no account and no subscription — npx -y @pylonapi/mcp, and calls are paid per request through x402 on Base. PYLON_GATEWAY_URL points at a self-hosted gateway instead of the default.
Setup effort
One command — npx -y @pylonapi/mcp
USE CASES
01
Getting an image of a page as it renders today
Screenshot the URL rather than describing what the page probably looks like.
02
Reading a PDF or a scanned document
Extract the text — OCR when it is an image rather than a text layer.
03
Turning a draft into a document you can send
Convert the markdown or HTML to PDF and host the file to get a link back.
04
Checking who is behind a domain
Pull WHOIS, DNS and SSL details together instead of three separate lookups.
05
Running several steps without shuttling data through the model
Describe the pipeline once and let it plan the steps and pipe the outputs between them.
06
Finding out whether it can do a thing at all
Search the capabilities, including the x402 bazaar, before building a workaround.
3 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
pylon_discover
[Pylon] Search for capabilities — both native and from the x402 bazaar. Use this to find out if Pylon can handle a specific type of task.
pylon_do
[Pylon] Execute any task using natural language. Pylon automatically matches to the right capability. Use this when you're not sure which specific tool to call.
BEFORE YOU INSTALL
What to know first
Tools you get
3 tools when we connected.
Requires
npx on PATH
CONTEXT COST
Light Standing cost
Rated by the size of the 3 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Add the block to your client, or run the command directly.
Server setup
Configuration file
JSON
{
"mcpServers": {
"pylonapi": {
"command": "npx",
"args": [
"-y",
"@pylonapi/mcp"
]
}
}
}npx
TERMINAL
npx -y @pylonapi/mcp
