The Safari MCP server for web developers (webkit.org)
209 points by coloneltcb 16 hours ago
runjake 35 minutes ago
Federico Viticci went into a little more detail about what this means on MacStories, Mastodon, and the latest episode of the Connected podcast. It is also more approachable for laypeople.
Be sure to visit the links from the story, as well.
https://www.macstories.net/linked/safaris-new-mcp-server-is-...
atonse 3 hours ago
I am especially hopeful for this for my daily stuff, not just testing.
Meaning, having a hopefully seamless way to perform some automations in the browser on my behalf but since it’s the browser I’m logged in to, it just makes the handoff between myself and the agent feel more seamless.
And that’s because I’ve used safari as my main browser, not chrome, because it isn’t as much of a battery hog.
kordlessagain 20 minutes ago
I'm working on Hyperia and it has full agentic control of a webpane (Electron based) for doing crazy things with it: https://github.com/deepbluedynamics/hyperia.
Uses an agent container orchestrator as well, which has MCP tools to expose ports in the container (and thus can display the work in the webpane): https://github.com/DeepBlueDynamics/nemesis8
I'll add the Safari MCP wiring to n8 today...
New releases landing tonight with more features.
bel8 10 hours ago
I have been using Chrome's official MCP devtools server since Nov 2025.
https://github.com/ChromeDevTools/chrome-devtools-mcp
Before that I used Chrome web drivers but MCP is faster and more capable.
I also instruct LLMs to test my pages on Firefox using its official MCP to make sure they work in Firefox too:
https://github.com/mozilla/firefox-devtools-mcp
Now I will add Safari to the compatibility tests. cool
Raed667 7 hours ago
Is there a difference between using these and using the playwright mcp with Chrome/Firefox config?
bel8 4 hours ago
I can speak for Chrome's MCP which I have more experience.
devtools MCP will have access to more deep level fetures such as performance profiling, lighthouse and network requests in details (headers, auth, cookies...).
For example, I had success using chrome devtools mcp to debug frontend performance issues. The LLM captured and analyzed some nice traces and was able to isolate bottlenecks and unnecessary repaints and reflows.
elAhmo 3 hours ago
Syntaf an hour ago
I used the chrome MCP to profile a slow react page at my company, set a /goal and had it iterate until it achieved under 100ms responsiveness to actions.
Claude was able to identify the slowness and use various react tricks to fix the specific issues, all without my input.
I don’t think the playwright MCP can do this, unless I’m mistaken
egeozcan 9 hours ago
I'd personally suggest Playwright-CLI: https://github.com/microsoft/playwright-cli
It works much faster for me than the MCP servers I tried.
jwr 8 hours ago
Also, spel (https://github.com/Blockether/spel) for persistent browser sessions (through a daemon) and Chromium, Firefox, and WebKit engines.
jeffyaw 2 hours ago
playwright is AWESOME for e2e testing (works great with electron!).
although, i use the playwright mcp. :)
frb 6 hours ago
All this felt heavy to me. Full browser, debug protocol, DOM dump on every read. MCP vs CLI is the smaller question, what sits underneath matters more. So I built a small Rust binary that drives the system webview directly and returns state tokens and deltas instead of the DOM. Loading the HN front page costs the agent about 50 tokens. It speaks both MCP and CLI, pick whichever your agent prefers.
defied 3 hours ago
There has been the (Apple provided) safaridriver for a couple of years. It speaks WebDriver W3C and can be used to interact with a Safari instance.
efitz 17 minutes ago
How are the MCP servers compared to Playwright?
noiv 14 minutes ago
PLayWright is not built into browsers...?
demetris 9 hours ago
But does Apple really care about web developers?
How do you test on Safari if you don’t have Apple devices?
How difficult can it be for Apple to make barebones virtual machines with just Safaris?
embedding-shape 8 hours ago
> How do you test on Safari if you don’t have Apple devices?
How do you test a Playstation game without a Playstation (dev kit)? How do you test some hardware firmware without having the hardware? How can you run a program without the hardware required to run the program, if no emulator/simulator is available?
I'm almost lost at words how these are questions, unless they're theoretical and some diatribe comes afterwards that has the actual point trying to be made, but it never came.
Yes, some things run only on specific hardware and without virtualization/emulation, you're not supposed to test those things outside of the hardware. Been a thing for decades, probably since the beginning of computing.
> How difficult can it be for Apple to make barebones virtual machines with just Safaris?
Almost nothing Apple does is seemingly decided by how difficult it is, for better or worse, but are strategic decisions. If you haven't caught up with that they're building a walled garden for themselves, I'm not sure what could convince that they are. I think this is extremely clear for most people. If you don't like it, don't play there, like the rest of us.
hbn 3 hours ago
I don't think it's fair to compare development for web, which is supposed to be an open standard, with developing for a proprietary piece of hardware like the Playstation.
If you want to develop a game for the Switch and ignore the Playstation entirely, you can, and then you don't need a Playstation (dev kit).
When you're developing for the web, you're ideally making something that runs regardless of the user's browser. When you start getting bug reports in from Safari users, how else are you supposed to fix them? Cheapest option is detect if they're a Safari user and tell them to use another browser, but that's not really ideal for anyone except Google.
simondotau 3 hours ago
etchalon an hour ago
shubb 4 hours ago
A lot of folks want to run tests off a GitHub action I.e. on a server somewhere. Ideally you want your test stack to fit in a docker image. So this does suck for developers in the respect and you could imagine apple releasing a special docker image that just ran safari if they wanted to really make it easy to develop for thier platform.
However, I imagine someone will fill a server rack with cheap old macs and offer and safari mcp as a service…
SunboX 4 hours ago
embedding-shape 4 hours ago
alphabettsy 4 hours ago
Terretta 9 hours ago
Even in the Chrome hegemony you don't want to be missing Edge and many others, so you test chromium.
Similarly, while not perfect you can test WebKit, and if you like, on Linux or Windows, for example:
https://orionbrowser.com/platforms/linux
Apple wouldn't be in the business of VMs with Safari, but if you're looking for MacOS VMs, turn to a CSP: https://aws.amazon.com/ec2/instance-types/mac/
Many have software testing orchestration pre-wired.
demetris 9 hours ago
I know of the solutions. I use a few of them.
I have multiple Playwright webkits on both Windows and Linux. I have Epiphany on Linux (not 100% same webkit). I have subscriptions for testing on real hardware.
This is why it seems to me that Apple does not really care about web developers.
Alifatisk 6 hours ago
No way, is Orion Browser available on other platforms as well now? Does it mean I can finally do tests for Safari (webkit) without owning an Apple product or paying for a vm? Incredible.
andrethegiant 4 hours ago
> But does Apple really care about web developers?
They just released this new tool, so yes.
pjmlp 8 hours ago
Just like you would test IE on Linux or OS X.
demetris 7 hours ago
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pjmlp 6 hours ago
simonw 3 hours ago
I've been telling agents to run Chrome and talk to it directly via the CDP recently and finding that to work very well.
michelb 2 hours ago
Indeed. This works much better and faster than the mcp route.
jickmao 4 hours ago
MCP for browser automation is interesting because Safari's WebKit engine is the one most AI agents can't easily drive (Playwright and Puppeteer are Chromium-first). Having an MCP server for it could fill a real gap in cross-browser testing for agent workflows.
quantumHazer 7 hours ago
> There are many ways to build for the web, both with and without AI. If AI is a part of your workflow, we think this tool will help make it even more productive. And if it isn’t, that’s OK too.
Crazy thing to say in 2026 where if you write code and not delegate every bit to an agent you're considered a noob by some people.
siva7 7 hours ago
The opposite was considered two years ago a crazy thing to say. I'm glad this changed and people using ai don't have to hide in the closet anymore for doing so.
dofm 7 hours ago
When have people using AI to develop ever had to hide in any closet? It's the most public "new hotness" ever.
Alifatisk 6 hours ago
hbn 3 hours ago
It wasn't nearly as good 2 years ago.
llm_nerd 5 hours ago
Which part makes it crazy? The fact that they felt the need to add this disclaimer to try to assuage the fanatical anti-AI contingent?
Like this is specifically a tool for AI-augmented development, and they had to add this "but also, thoughts and prayers for you non-AI people" is incredibly weird, but not in the way you seem to think it is.
mrtksn 3 hours ago
Does the websites get some flag or clue that this is an AI bot interacting?
adam12345 6 hours ago
should say "see how my website performs on safari"
croisillon 11 hours ago
so it's a crossover of dev tools and LLM? sounds sane enough i'd say
Onavo 10 hours ago
I wonder if it supports Private Relay. Private Relay is great for getting around scraping blocks because they explicitly whitelist apple private Relay ips.
greggsy 10 hours ago
Should do. Private relay really would be a sweet alternative to residential scraping proxies, but I’d expect sites to put in additionally checks and captchas before too long.
reader9274 10 hours ago
Which sites explicitly whitelist Private Relay IPs?
hnav 9 hours ago
https://developer.apple.com/icloud/prepare-your-network-for-... has a guide for web server operators, including a GeoIP CSV which could conceivably be used for whitelisting. More concerning is that they're plugging private access tokens there, which allows Apple to vouch that you're a human running their hardware.
AIorNot 10 hours ago
Does this support mobile simulator safari too
keepamovin 10 hours ago
Building something similar for Chrome and Firefox browsers: https://github.com/DO-SAY-GO/WebCLI - a CLI not MCP. Tho am considering MCP for distribution, even tho agents love the CLI and the proof demos speak for themselves.
The reason I did not include Safari was there wasn't enough parity between its Safaridriver surface and what Bidi/CDP give now. Safari is doing Bidi tho, iirc. So ...soon perhaps. ;) ;p xx ;p
olmo23 7 hours ago
Not sure you want to hear this but there is 0% chance I will ever bring up a product with a vulgar name at work.
lynndotpy 25 minutes ago
Introducing a new Linux distribution which comes with the yiff sound server, the GIMP image editor, and provides for web browsing entirely using FuckUI.
keepamovin 3 hours ago
I understand that. Hence the name ‘correction’
greggsy 10 hours ago
Not really sure why your project needs to be so… edgy?
keepamovin 8 hours ago
Marketing iterations. Plus dang downweighted my posts after I got the biggest Show HN of last year, so I'm trying harder to get attn. HN maybe isn't the big launch - but it's kinda a legacy thing for me. Can't blame a guy for tryin
The actual site is: https://duetbrowser.com/