Community Gmail server with auto-auth: search, read and send email via MCP.
Nothing to run from here
npubmail 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
16
tools declared
local
runs on your machine
42
downloads
What it does
Email inbox for AI agents, owned by a Nostr key. No signup or API key. Receive codes, read, send.
Quickstart
This one is not published to a package registry, so there is no one-line install: it is built and started the way its own source says.
Publishernot claimed
NPAll 1 server
npubmail1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
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 npubmail 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.
This one is not published to a package registry, so there is no one-line install: it is built and started the way its own source says.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Your mailbox addresses (created automatically on first use) and whether sending is enabled.
No parameter schema on file.
Create a disposable address that delivers into your mailbox and expires. Use one per signup; set allow_from to the service's domain so nothing else can reach it. Returns a cursor for wait_for_code.
No parameter schema on file.
List received emails, newest first, with extracted codes and sender verification.
No parameter schema on file.
Read one email: text body, links (verify/confirm links flagged as action), codes, SPF/DKIM result and safety warnings.
No parameter schema on file.
Block until a matching email arrives (default 120 s) and return it. Filters: from, to, subject.
No parameter schema on file.
Block until an email containing a one-time code arrives and return the code. Use the cursor from create_alias as 'after' so a code that arrives quickly is not missed.
No parameter schema on file.
No parameter schema on file.
Sent emails still waiting for a retry (recipient server said 'try later'), plus your bounce count. Final failures arrive in your inbox as 'Undeliverable: ...'.
No parameter schema on file.
Check whether a payment request (payment_id) has been paid.
No parameter schema on file.
How long your mail is kept and the prices of longer storage tiers.
No parameter schema on file.
Keep mail longer than 7 days. Answers with a Lightning invoice first; after it is paid, call again with payment_id.
No parameter schema on file.
Delete an email from your mailbox.
No parameter schema on file.
Optional. Make your mailbox addresses (name@domain, npub@domain) also work as Lightning addresses that forward to a Lightning address you already have (any wallet). npubmail only relays the lookup; payments go straight to your wallet. Empty address turns it off.
No parameter schema on file.
No parameter schema on file.
Built-in wallet (optional): collect incoming payments and show the balance.
No parameter schema on file.
Built-in wallet (optional): pay a Lightning invoice, within the spending limits. Paying is spending money: only pay what your principal allows. When set up, send_email pays npubmail's own invoices with it automatically (within limits).
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 npubmail or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
ATrust score 99 / 100
Release 0.2.1 · scanned 13 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
Findings1 threat · 0 capability
Capabilityminimal
Coveragesource
Verificationrepo
Surface digest2dc22d3bf39daa3966da07121ef3ae7218597d0cc75600bd6ac9471b4c82a657
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 digest2dc22d3bf39daa39
Scanned2026-10-13
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
It installs from its repository rather than from a versioned package, so the command cannot be pinned to a release. The history below is for reading; the current release on file is 0.2.1.
0.2.1
undated
latestNo release note was published with this version.
—
no reviews yet
Who can review
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.
Sign in to write one
Any signed-in account that does not publish npubmail can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
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.