halowerk-mcp
io.github.halowerk/halowerk-mcp
About halowerk-mcp
halowerk-mcp is an MCP server published by the GitHub account halowerk. 134 paid APIs as MCP tools, billed per call in USDC on Base. No account, no login.
It runs on your own machine: your AI client starts it from the npm package halowerk-mcp at version 0.1.1.
It asks for one secret: HALOWERK_PRIVATE_KEY. Give it a key with the least access that still works.
Version 0.1.1 was published on 12 August 2026, and the source code is public, so you can read it before installing.
Written from the registry entry. 9 automated checks on the registry entry and the package code: 7 pass, 0 warn, 0 fail, 2 info. How we check.
What it asks for
| Variable | Required | Secret | Description |
|---|---|---|---|
HALOWERK_PRIVATE_KEY | No | Yes | Private key of the paying wallet, hex with or without 0x. Use a throwaway wallet holding only a few dollars of USDC on Base. Without it, only the free catalogue and price tools work. |
HALOWERK_MAX_PREIS_USDC | No | No | Ceiling per call in USDC. A more expensive service is refused, not bought. Default 0.05. |
HALOWERK_BUDGET_USDC | No | No | Ceiling per session in USDC. Once reached the server refuses further paid calls. Default 1.00. |
HALOWERK_MODUS | No | No | hero (12 curated services, default), gateway (3 meta-tools, smallest context) or all (70 services). |
HALOWERK_TROCKEN | No | No | Set to 1 for a dry run: returns price and call plan, pays nothing. |
Checks
| Check | Result | Detail |
|---|---|---|
| Source repository linked | Pass | https://github.com/halowerk/halowerk-mcp |
| Version pinned | Pass | Every package has an explicit version |
| Secrets requested | Info | Asks for 1 secret: HALOWERK_PRIVATE_KEY |
| Known package registry | Pass | All packages come from npm, PyPI, OCI, NuGet or MCPB |
| Namespace ownership | Info | Name verified via GitHub account halowerk |
| Registry text aimed at the AI | Pass | Description and settings contain no hidden characters or instructions to the AI |
| Install scripts | Pass | halowerk-mcp@0.1.1 runs nothing at install |
| Code red flags | Pass | Read 8 files in halowerk-mcp@0.1.1: no obfuscation, encoded execution, credential reads or data-collection endpoints found |
| Text aimed at the AI | Pass | No hidden characters or instructions to the AI in 8 files, including comments and the README |
Popularity & health: 49 / 100
Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.
0 forks, 0 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.
What people say
No Hacker News threads link to its source code.
Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.
Facts
| Registry name | io.github.halowerk/halowerk-mcp |
|---|---|
| Publisher | GitHub account halowerk |
| How the name is verified | Name verified via GitHub account halowerk. The registry ties the name prefix to that account or domain; it does not check the code. |
| Type | Local: runs on your machine from a package |
| Packages | npm halowerk-mcp 0.1.1 (stdio) |
| Version | 0.1.1 |
| Published | |
| Last updated | |
| Source repository | https://github.com/halowerk/halowerk-mcp |
| Website | None linked |
| Category | Finance & payments (assigned by keyword rule, not by hand) |
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