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Directory / Park Graph

Park Graph

Q: Is Park Graph MCP server safe?

QAmcp's test on 8 Nov 2026: None of the hidden-instruction wordings we know were found in its 8 tool descriptions. Its error messages showed no secrets or internal details. 5 of its 8 tools are labeled read-only; the others may change or send things. Overall it scored 95/100 on 8 Nov 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by parkgraph.com · https://parkgraph.com/api/mcp

Find, price and book parking at Park Graph lots: search, quote, hold and session tools.

8 tools✓ no account neededPricing: not listed

Visit website

95 /100

PASS · WITH NOTES

12 of 12 checks · 8 Nov 2026

Test it now for current results

At a glance

Runs where: On their server. What you send to it goes to them.
What you need: Nothing: it answered without a login
Tools: 8 tools
Its own safety labels: 5 read-only, 2 labeled as deleting or destroying, 1 labeled as changing things
Memory it takes: About 2,400 tokens of your AI's memory, just for its tool descriptions
Largest answer: About 0.3 KB in our test
Speed: Average answer in our test: 205 ms

Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 8 Nov 2026.

Is Park Graph MCP server safe?

None of the hidden-instruction wordings we know were found in its 8 tool descriptions.
Its error messages showed no secrets or internal details.
5 of its 8 tools are labeled read-only; the others may change or send things.
Overall it scored 95/100 on 8 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What this test does not check

Its source code and packages.
What a tool quietly does behind the scenes, such as writing a file or calling another service.
Instructions hidden inside live tool answers. We only look for those in tool descriptions.
Hidden instructions worded in a way our list doesn't know yet.
Tools that could change something. Those are read, never run.

What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection

Known security advisories

It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.

What it can do

8 tools, in the server's own words.

search_lotsread-only

Finds Park Graph parking lots near a latitude and longitude, nearest first, with spaces left and the current rate.

get_lotread-only

Full public details for one lot: address, coordinates, spaces, features, hours, pricing and spaces left right now.

quoteread-only

Price to park at a lot for a number of hours, at the lot's current rate (daily max applied).

reserve

Holds space at a lot for the driver for a few minutes and returns booking_url, the lot's pay page on parkgraph.com (opened on duration_hours when it is sent).

get_sessionread-only

A parking session's lot, status, start and end times, rate, amount so far and extensions, with a link to the driver's session page.

extend_session

Prices more time on an active hourly parking session.

my_sessionsread-only

The signed-in driver's own parking: recent sessions (newest first), spaces held through this connector, and monthly passes, each with a link to its page on par…

my_vehicles

The signed-in driver's saved vehicles (up to 5 plates, each with an optional label) and plates from their past parking that aren't saved yet.

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Ready for the newest MCP version
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
note
✓
ConnectsConnected in 655 ms
pass
✓
Lists its toolsFound 8 tools
pass
✓
Every tool is describedAll 8 tools and their inputs are described
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Tools work with good inputs
All good
- ✓search_lots: Worked (358 ms)
- ✓get_lot: Answered with an error, probably because of our sample input: Invalid arguments for get_lot
- ✓quote: Answered with an error, probably because of our sample input: Invalid arguments for quote
- ✓get_session: Answered with an error, probably because of our sample input: {"error":{"code":"SESSION_NOT_FOUND","message":"No parking session matches. Check the 6-character phone code on the receipt or pass and the…
- –my_sessions: Needs you to sign in, so it was not tested (not counted against the server)
- –reserve: Not run: labeled dangerous
- –extend_session: Not run: labeled dangerous
- –my_vehicles: Not run: labeled as changing data
pass
✓
Bad inputs give a clean error
All good
- ✓search_lots: Refused missing required input "lat" with a clear error
- ✓search_lots: Refused wrong type for "lat" with a clear error
- ✓get_lot: Refused missing required input "lot_id" with a clear error
- ✓get_lot: Refused wrong type for "lot_id" with a clear error
- ✓quote: Refused missing required input "lot_id" with a clear error
- ✓quote: Refused wrong type for "lot_id" with a clear error
- ✓get_session: Refused wrong type for "phone_code" with a clear error
- –my_sessions: Needs you to sign in, so bad inputs were not tested
pass
✓
Fast enough
All good
- ✓Connecting took 655 ms
- ✓Listing tools took 120 ms
- ✓Average tool answer: 205 ms
- ✓search_lots: Slowest tool: search_lots (358 ms)
pass
✓
No secrets leakedChecked 12 error messages: no secrets or internal details
pass
✓
Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
pass
✓
Resources and prompts work
All good (1 resource, 1 prompt)
- ✓Opened 1 of 1 resources
- ✓An address that does not exist gets a clean "not found" error
- ✓Opened 1 of 1 prompts
pass
–
Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://parkgraph.com/api/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/com-parkgraph-mcp.svg)](https://qamcp.dev/s/com-parkgraph-mcp.html)

Score over time

8 Nov 202695

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Park Graph, signed in with GitHub, one per person. Reviews never change the score.

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