
PassNinja
io.github.flomioPublished by GitHub account flomiov0.4.0Updated Oct 24, 2026
Issue and manage Apple Wallet & Google Wallet passes from any MCP-aware AI client.
Overview
PassNinja lets an assistant issue and manage Apple Wallet and Google Wallet passes, pass templates, webhooks and scan-event readers through the PassNinja API.
- What you can do
- List, inspect, create, update and delete pass templates, including required fields and reader configuration (template creation and deletion are enterprise only). Issue, list, read, update, delete and decrypt individual passes, and fetch raw pass data. Manage webhooks: create, list, get, delete and read delivery results. Manage scan-event applications and readers, including reader tokens and merged reader configuration. Check the active credential and account with a whoami tool.
- When to use it
- Useful when you want to drive PassNinja wallet pass workflows from a chat client, for example listing templates, counting installed passes, or issuing a pass for a given email, without switching to the CLI or dashboard.
- Requirements
- Runs as a local process over stdio, installed as a desktop .mcpb bundle (macOS, Linux amd64, Windows amd64) or launched as the passninja mcp command from any MCP client. Needs a PassNinja API key and account ID, supplied through the install dialog, the PASSNINJA_API_KEY and PASSNINJA_ACCOUNT_ID environment variables, flags, or a saved auth file. Network access to the PassNinja API is required.
Installation
In SourceWeft
- Open PassNinja in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Other MCP clients
Follow the launch instructions in the repository.
README
passninja
Command-line interface for the PassNinja REST API.
Wraps /v1/pass_templates, /v1/passes, and /v1/webhooks so you can
manage Apple Wallet and Google Wallet passes from the shell.
Install
macOS / Linux (Homebrew)
Windows (PowerShell)
From cmd.exe:
The script detects your CPU (amd64, arm64, or 386), downloads the matching
binary from the latest GitHub release, verifies its SHA256, drops it in
%LOCALAPPDATA%\Programs\passninja\, and adds that directory to your user
PATH. No admin needed; re-running upgrades in place.
Pin a specific version, or override the install directory:
Windows (Scoop)
If you already use Scoop:
Claude Desktop (one-click .mcpb install)
For chat-driven pass workflows, install the PassNinja MCP server into Claude Desktop:
-
Download
passninja.mcpbfrom the latest release. -
Double-click the file. Claude Desktop opens an install dialog showing the 31 tools the server exposes (pass templates, issued passes, webhooks, scan-event applications and readers).
-
The dialog prompts for your API key and account ID — get them at https://www.passninja.com/settings → API key.
-
Hit Install, restart Claude Desktop, then ask Claude things like:
List my passninja pass templates and tell me how many passes are installed on each.
Issue a new pass on ptk_0x002 for [email protected].
The bundled binary is code-signed with Apple Developer ID and notarized, so
macOS Gatekeeper accepts it without prompts. Same .mcpb works on macOS
(universal), Linux (amd64), and Windows (amd64).
The server is also listed in the official MCP Registry
as io.github.flomio/passninja-cli, so any MCP client that consumes the
registry can discover and install it automatically.
Authenticate
Or pass credentials via env / flags:
Flag > env > ~/.passninja-auth.json > ~/.passninja.yaml > defaults.
The same precedence applies to the MCP server: passninja mcp (started by
Claude Desktop and other MCP clients) reads PASSNINJA_API_KEY /
PASSNINJA_ACCOUNT_ID from its environment, falling back to the auth file.
Stdio MCP server
The CLI also doubles as a Model Context Protocol
server. The .mcpb install above wires this into Claude Desktop, but you can
hook it into any MCP client (Cursor, Cline, Zed, etc.) by configuring the
client to launch:
Tool surface (snake_case names mirror the CLI subcommands):
Each tool's input schema, destructive-hint annotations, and rich descriptions let the LLM self-discover correct usage without external documentation.
Commands
Output formats
Set a session-wide default via ~/.passninja.yaml:
Webhook events
The CloudEvents 1.0 type taxonomy emitted by passninja-site:
Reserved for future use: pn.pass.issued, pn.pass.deleted,
pn.pass_template.created, pn.pass_template.updated,
pn.pass_template.deleted.
Running a reader host
Cloud-connected readers (VTAP Cloud, Famoco Tap&Go) post scans to PassNinja
themselves. A simple reader — Reyax RYRR30D, ACS WalletMate, Elatec TWN4 —
has no cloud connection of its own, so reader serve supplies one: it takes
the values the reader captures, submits them as scan events, and applies the
LED/beep instruction the server returns.
Setup is three steps, and only the last one runs on the reader host:
serve authenticates as that one reader with its bearer token — a reader
host never needs, and should never hold, your account API key.
Tap values arrive from one of three sources:
--pcscdrives an attached PC/SC contactless reader (ACS WalletMate / WalletMate II, incl. the Mini module) directly — no separate daemon. The host runs the wallet flows itself: on an Apple tap it captures the VAS cryptogram; on an Android tap it has the server pre-sign the Smart Tap session mid-tap (the collector key never leaves PassNinja), negotiates the secure channel, and captures the encrypted bundle. Both are submitted for server-side decryption — the host holds no key material. First-generation WalletMates ship with RF polling disabled;serveenables it automatically when the vendor CCID driver is installed. Needs a native (cgo) build on macOS/Linux —go installand Homebrew builds qualify.- stdin (one value per line) — pipe any reader daemon's output in.
--listen 127.0.0.1:8080— a loopback HTTP endpoint a driver POSTs to.
For stdin/HTTP, a value that looks like raw captured APDUs is forwarded for server-side decryption; anything else is treated as an already-decrypted pass serial.
Each result is one JSON object on stdout:
To drive a physical LED, use the outcome hooks — they receive $PN_RESULT,
$PN_LED, $PN_MESSAGE, $PN_PASS, $PN_SCAN_ID, and — when a forward
application answered — $PN_FORWARD_BODY (the endpoint's JSON reply). On a
forward application, $PN_MESSAGE is the endpoint's message verbatim and
the printed scan JSON carries the reply under forwardResponse:
Heartbeats (default every 5m) report liveness plus the hardware identity you
pass with --serial / --manufacturer / --model / --firmware, which is
what fills in the reader's Hardware panel in the dashboard. Readers whose
vendor MDM already tracks them should use --no-heartbeat.
passninja webhook create returns the bearer token once on creation.
Save it — it will not be shown again.
Build from source
Release flow
Tag-driven. Push a vX.Y.Z tag on master; the GitHub Actions workflow at
.github/workflows/release.yml matrix-builds darwin/linux × arm64/amd64,
packages a code-signed + Apple-notarized passninja.mcpb on a macOS runner,
publishes both the binaries and the .mcpb on the GitHub Release, and opens
a PR against flomio/homebrew-passninja bumping the formula url and
sha256.
Apple credentials live in repo secrets (APPLE_TEAM_ID,
APPLE_API_KEY_ID, APPLE_API_ISSUER_ID, APPLE_SIGN_IDENTITY,
APPLE_CERTIFICATE_PASSWORD, plus the base64-encoded APPLE_API_KEY_P8
and APPLE_CERTIFICATE_P12).
After each tagged release, the MCP Registry entry needs a refresh. Bump
packages[0].identifier, packages[0].version, packages[0].fileSha256,
and the top-level version in server.json to match the new release, then:
Source: README.md at commit 026b860
Tools
0Version history
1- v0.4.0LatestSep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts