Create invoices and customers and record payments in BillingEngine from any MCP client.
Nothing to run from here
Swarm X402 is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
99/100
trust score
166
downloads a day
local
runs on your machine
4
tools declared
What it does
SWARM is an autonomous agent that sells small services over x402. This server lets Claude, Cursor or any MCP client call them and pay per call in USDC on Base. No account, no API key.
Tools: - code_health: static scan of a public GitHub repo (TODO/FIXME debt, oversized files, secret heuristics, hygiene) - summary: one-page brief on a topic, researched on the live web, sources linked - report: full Markdown report on a topic, researched on the live web, sources linked - utilities: UUIDs, hashes, base64, URL encoding, passwords, timestamps
Every tool reaches the network and spends USDC, and declares it in its MCP annotations (not read-only, open world). Before signing anything, the server reads the 402 quote and checks that the network is Base mainnet and the price is under SWARM_MAX_USD (default $1). Without SWARM_WALLET_KEY the tools only show the price. Use a dedicated wallet holding a few dollars.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user swarm-x402-mcp '--' npx -y swarm-x402-mcp
# 2 — ask your agent for something these tools do
# utilities, code_health, summary and 1 more
Swarm X402 costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
PublisherVerified · since 2026
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts Swarm X402 as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
Claude Codedeclared by this listing
This is a public server: you run it yourself and this marketplace is not in the path. You need Node.js — the current LTS (24) is the safe choice; npx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user swarm-x402-mcp '--' npx -y swarm-x402-mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it runs from its publisher’s own package: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it asks of you
Nothing is required, but it can take SWARM_WALLET_KEY, SWARM_MAX_USD if you want to set them.
What it writes
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
What you approve
4 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
UUIDs, hashes, base64, URL encoding, secure passwords and timestamp conversion. Price: $0.02 per call. Calls SWARM's shop over the network and, with SWARM_WALLET_KEY set, pays in USDC on Base via x402 (the live quote is checked against SWARM_MAX_USD before paying; charged only on success).
No parameter schema on file.
Static scan of a public GitHub repo: TODO/FIXME debt, oversized files, secret heuristics, hygiene. Price: $0.05 per call. Calls SWARM's shop over the network and, with SWARM_WALLET_KEY set, pays in USDC on Base via x402 (the live quote is checked against SWARM_MAX_USD before paying; charged only…
No parameter schema on file.
A one-page brief on a topic, researched on the live web at request time, sources linked. Price: $0.75 per call. Calls SWARM's shop over the network and, with SWARM_WALLET_KEY set, pays in USDC on Base via x402 (the live quote is checked against SWARM_MAX_USD before paying; charged only on success).
No parameter schema on file.
A full Markdown report on a topic, researched on the live web at request time, sources linked. Price: $0.99 per call. Calls SWARM's shop over the network and, with SWARM_WALLET_KEY set, pays in USDC on Base via x402 (the live quote is checked against SWARM_MAX_USD before paying; charged only on…
No parameter schema on file.
Free
$0 forever
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Swarm X402 or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
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Alert at 80% · then the tool returns a normal MCP error
Used this month: —
ATrust score 99 / 100
Release 0.1.1 · scanned 6 Oct 2026
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
Threat score100
Client score99
Findings0 threat · 0 capability
Capabilityminimal
Coveragesource
Verificationrepo
Surface digest8e27af411a7a28bffebdfb4bcc0db5f24dbc639dff34e1385665fb9b2b994d19
Score vectorthreat 100 → client 99
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| verification-discount | repo | publisher verification (public source) — no provenance, but the source is public and inspectable | −1 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
score = clamp(round(threatScore − E_cap − E_ver − E_cov), 0, 100). No model, no opinion, no network call at scoring time: the same methodology version against the same bytes always produces this number, and every line above is a field of the report rather than a summary of it.
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tool surfacenot available
Implementation sourceread
Package metadataread
Live transportnot available
No tools were enumerated, so prompt-injection, capability and toxic-flow analysis had no tool surface to inspect. To grade a package’s real runtime tools, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| No per-tool rows for this release — see the note below. | ||
No tool surface was enumerated, so there is nothing to attribute a capability to.
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
Integrityfirst-seen
Surface digest8e27af411a7a28bf
Scanned2026-10-06
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Always latest — the install command names no version, so it installs the newest release when it runs; the current release on file is 0.1.1. Pin a release below and the command asks for exactly that one.
0.1.1
5 Oct 2026
latestNo release note was published with this version.
0.1.0
undated
- The version this listing was on when mcprush began following its releases. The registry was not asked when it shipped, so this row carries no date.
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One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
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Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.