Pack local or remote codebases into AI-friendly files that LLMs and coding agents can read or search
doublespeed — Xcode as an API 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.
What it does
Build, test and run iOS apps on a remote Mac from any machine. XcodeBuildMCP-compatible tools.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --env 'DS_API_KEY=${DS_API_KEY}' --transport stdio doublespeed-xcode-as-an-api-mcp '--' npx -y @doublespeed/mcp
# 2 — ask your agent for something these tools do
# discover_projs, list_schemes, list_sims and 8 more
It needs DS_API_KEY: this reads it from your environment, so export it first.
doublespeed — Xcode as an API costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts doublespeed — Xcode as an API as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
This is a public server: you run it yourself and this marketplace is not in the path. You need Node.js — the current LTS (24) is the safe choice; npx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. Claude Code reads DS_API_KEY (doublespeed API key (dsx_…) from https://mac.doublespeed.ai/dashboard) from your environment each time it starts the server, so the value stays out of its config: export it in your shell profile (macOS, Linux), or run setx DS_API_KEY … and open a new terminal (Windows). The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user --env 'DS_API_KEY=${DS_API_KEY}' --transport stdio doublespeed-xcode-as-an-api-mcp '--' npx -y @doublespeed/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
It reaches a system of yours, so it needs your own credential rather than the publisher’s: DS_API_KEY — doublespeed API key (dsx_…) from https://mac.doublespeed.ai/dashboard. You set it in your own client’s config, on your machine — this marketplace never holds it.
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.
11 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.
Scan a directory for .xcworkspace, .xcodeproj and Package.swift (skipping node_modules, Pods, .build, DerivedData). Local; no Mac needed.
No parameter schema on file.
List shared schemes of a project or workspace by reading xcshareddata (local). Unshared schemes are not visible; if none are listed, ds infers the scheme from the app target on the Mac.
No parameter schema on file.
List simulator devices, iOS runtimes and Xcode versions available on the doublespeed fleet.
No parameter schema on file.
No parameter schema on file.
Compile the project for the iOS Simulator on a Mac in the doublespeed fleet. Returns file:line:col errors. Use when there is no Xcode locally.
No parameter schema on file.
Build and run XCTest / Swift Testing on an iOS Simulator on the doublespeed fleet. Returns per-test results and compile errors.
No parameter schema on file.
Build, install and launch the app in an iOS Simulator on the fleet and return a browser URL where a human can see and use it (tap, type, swipe). The session stays open until stop_app_sim or the idle timeout. Billed per second while open.
No parameter schema on file.
End a live simulator session started by build_run_sim (frees the Mac; stops billing).
No parameter schema on file.
Produce an unsigned .xcarchive for the device SDK on the fleet (Release). Signing and TestFlight upload are not available yet.
No parameter schema on file.
Fetch a previous job (status, error, diagnostics, tests) and optionally its log tail.
No parameter schema on file.
Check that this machine can reach the doublespeed fleet: key present, API reachable, fleet capabilities, ds CLI version.
No parameter schema on file.
- 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 doublespeed — Xcode as an API or to call it, at any volume.
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.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | high | capability blast radius (high) — client exposure if the model is manipulated | −6 |
| 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 |
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.
Tools were statically extracted from the published source (11 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, 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. high is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| discover_projs | no tags | |
| list_schemes | no tags | |
| list_sims | no tags | |
| check_project | no tags | |
| build_sim | no tags | |
| test_sim | no tags | |
| build_run_sim | no tags | |
| stop_app_sim | no tags | |
| archive_app | no tags | |
| job_status | untrusted-input | untrusted-input: keyword "fetch" |
| doctor | no tags |
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
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.
No release note was published with this version.
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.
Any signed-in account that does not publish doublespeed — Xcode as an API can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
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.