Google Maps Scraper
Turn a business type and a location into clean lead rows by driving the local engine's job API.
Mental model
The engine (gosom/google-maps-scraper) runs as a local Docker container with a REST API at
. It has no auth, so it stays bound to localhost. A scrape is an
async job:
create it, poll until it is done, then download a CSV. One job can run many keywords. Each result has
up to
34 raw fields.
Step 0: Check the engine is running
bash
curl -s http://localhost:8080/api/v1/jobs >/dev/null 2>&1 && echo UP || echo DOWN
If
: run
from the kit root, wait ~10s, and retry. If Docker is not
installed, point the user to
.
Step 1: Create a job ()
Required fields. The API returns without them:
- : array of search strings. Bake the location into each term: .
- , : strings, the city's coordinates: , .
- : integer seconds, the job's wall-clock limit, e.g. . The API stores it as
nanoseconds internally, but you always send seconds.
Recommended fields:
- (default 10): how far to scroll, so roughly how many listings per keyword. Start at .
- , (city level), (meters), .
- : on by default in the kit. Emails are the most valuable lead field. The engine
visits each business website to find them, which is a little slower. Set only for a
deliberately fast run without emails.
bash
curl -s -X POST http://localhost:8080/api/v1/jobs \
-H "Content-Type: application/json" \
-d '{"name":"job","keywords":["coffee shops in Austin TX"],"lang":"en","zoom":15,
"lat":"30.2672","lon":"-97.7431","fast_mode":false,"radius":10000,
"depth":5,"email":true,"max_time":300}'
# → {"id":"<uuid>"} (HTTP 201; note: lowercase "id")
Handle two things on every scrape:
- Emails: on by default (). Turn them off only if the user wants a fast run.
- Socials: ask first. Before creating the job, ask the user once whether they also want
Instagram, Facebook and LinkedIn profiles (see "Social profiles" below). Never skip the question silently.
Step 2: Poll until done ()
The response field is
(capital S). It moves from
to
(success) or
.
Harness rule: the Bash tool
blocks foreground . Run the poll loop as a
background Bash command (
) and read its output file when notified.
Never poll with a foreground
.
Background poll snippet. It parses the value safely: match up to the closing quote, do not anchor on
.
bash
ID="<uuid>"
for i in $(seq 1 40); do
S=$(curl -s "http://localhost:8080/api/v1/jobs/$ID" | grep -oE '"Status":"[^"]*"' | head -1 | cut -d'"' -f4)
echo "status=$S"
[ "$S" = ok ] && { echo DONE; break; }
[ "$S" = failed ] && { echo FAILED; break; }
sleep 15
done
Step 3: Download and parse (GET /api/v1/jobs/{id}/download
)
bash
curl -s "http://localhost:8080/api/v1/jobs/$ID/download" -o results.csv
CSV columns (34):
input_id, link, title, category, address, open_hours, popular_times, website, phone, plus_code, review_count, review_rating, reviews_per_rating, latitude, longitude, cid, status, descriptions, reviews_link, thumbnail, timezone, price_range, data_id, place_id, images, reservations, order_online, menu, owner, complete_address, about, user_reviews, user_reviews_extended, emails
.
Return only the 8 lead fields (default)
The raw CSV has 34 columns and most are noise for outreach. By default, return only the 8 lead
fields, the data used to contact and qualify a lead, and drop everything else:
Drop by default. Show these only if the user explicitly asks:
/
(no use for
outreach),
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
.
already returns exactly the 8 lead fields. Use
to keep all columns, or
to choose your own. It
saves a CSV file by default (
); pass
for JSON. If you call the API directly,
strip to the lead fields yourself before
presenting. Never dump the full 34-column row at the user.
Social profiles: always ask the user (Instagram, Facebook, LinkedIn)
Google Maps has no social links, so socials are an enrichment step: visit each business
and
regex out its Instagram, Facebook and LinkedIn URLs.
Before scraping, ask the user once whether they
want socials too, unless they already said. If yes,
use the script: python3 scripts/scrape.py … --socials
.
- Token cost. Tell the user this when they ask for socials: the extraction itself costs 0 LLM
tokens, because it is plain HTTP and regex in the script. It adds ~40–50 tokens per business to
your context only if you load the rows into chat, e.g. ~+2k tokens for 50 leads. That is
negligible if you keep the file on disk and show a sample. Save the file and show a few rows.
- Do not fetch each website yourself with WebFetch to find socials. That reads every page into your
context and costs thousands of tokens. The script does it for free, so always prefer .
- Socials are opt-in and slower (one HTTP fetch per business), and coverage is partial (~40–70%).
Only businesses that link their socials on their site have them, and no website means no socials.
Say so if the user expects 100%.
Shortcuts. Prefer these for common cases:
- One keyword:
scripts/scrape.sh "<keyword>" <lat> <lon> [depth]
(bash) creates, polls and downloads in one go.
- Auto-geocode (no coordinates):
python3 scripts/scrape.py "<keyword>" --city "<City, ST>" [--depth N]
resolves lat/lon via OpenStreetMap Nominatim. You can also geocode the city yourself and pass coordinates.
Emails come back by default ( skips them). Add if the user asked for socials.
- Batch (many keywords, one job):
python3 scripts/scrape.py --keywords-file <file> --city "<City, ST>"
.
The API takes a array, so put all terms in a single job rather than firing many jobs.
Use the manual curl flow only for custom job bodies, e.g. to set .
Whole-city runs: when the user says all, every or entire city, or a run returns about 120 rows
(Google's per-search cap), use
python3 scripts/scrape.py "<keyword>" --city "<City, ST>" --grid 3
.
It splits the city into 3 x 3 tiles (9 jobs) and dedupes on
. Tiles run one at a time, so a
grid is slower and more likely to trip rate limits: warn once, don't block.
Deep email pass: on by default whenever emails are on. Rows with a website but no email get their
contact and about pages checked, and the script prints the found rate.
skips it.
Other endpoints
- lists jobs. deletes a job and frees disk.
- Browser UI and OpenAPI docs: and
http://localhost:8080/api/docs
.
Best practices (from the upstream docs)
- Depth: higher returns more results but is slower and more likely to be blocked. Start at 5
and raise it as needed.
- One job at a time locally. Many concurrent jobs without proxies lead to throttling by Google.
- Email extraction () visits each business website, so it is slower. It stays on by
default because emails are the key lead field. Pass (script) or (raw API)
for a fast run.
- returns reduced data, up to ~21 results per query, faster. Use it for quick lookups.
- Proxies: for large or repeated jobs, set (an array of , or
URLs, auth supported). The engine rotates them. This is the main defense against rate limits.
- and set the search area around /. Widen if results are too few.
- Extended reviews are available but heavy. Enable them only if the user asks for review text.
Rate limits, blocks and proxies (read before large jobs)
The engine sends real requests to Google Maps. The upstream project's only formal note is a disclaimer:
"Please use this scraper responsibly and in accordance with applicable laws and regulations. Unauthorized scraping may violate terms of service."
There is no published hard threshold for blocks, so stay conservative:
- Google may temporarily rate-limit your IP if you scrape too fast or too much. It clears in
minutes to hours and does not affect the user's Google account, but jobs fail in the meantime.
- Block signals: jobs returning , empty or unusually short results, or a sudden drop in
row count against an identical earlier run. When you see them, back off (pause, lower depth) or add proxies.
- Concurrency and blocking (upstream): "Higher concurrency … can increase blocking or failures,
especially without proxies. Start with the default for a first run." Reference throughput is about
120 places/min at . Locally, run one job at a time and start at .
When to add proxies (upstream: "For larger scraping jobs, proxies help avoid rate limiting"):
large jobs, many keywords, repeated or scheduled runs, or after you see block signals.
- Set the array in the job body. Types: , , , .
- Format:
protocol://user:pass@host:port
(auth optional), e.g.
"proxies": ["socks5://user:pass@host:port", "http://host2:port2"]
. The engine rotates them automatically.
Safety and guardrails
- Warn, don't block. When a request is large (high , many keywords, repeated runs, a grid, or
), proceed with it, but first print ONE short warning about temporary IP rate limits and
suggest proxies. Do not gate, force-stop or demand confirmation because a normal scrape is big.
Refuse outright only for clearly abusive or illegal use (surveilling individuals, spam, harassment).
- Never expose the API beyond without an auth proxy. Never print an API key if one exists.
- Personal data: scraped emails and phones are personal data. If the user will store or contact them,
remind them to follow GDPR, CCPA and CAN-SPAM (lawful basis, opt-outs, suppression). Do not help with
spam or harassment.
- Google's Terms of Service: scraping Google Maps is against them. Keep volume modest, treat output as
leads to verify, and do not resell raw Google data. Refuse uses aimed at surveilling individuals.
- Output hygiene: do not dump large CSVs into chat. Save the file to disk, summarize the counts and
show a few sample rows. Dedupe by / before storing.
- Disk: results pile up in the Docker volume. Offer to old jobs from time to time.
Troubleshooting
- : add (seconds).
422 missing geo coordinates
: add string /.
- Stuck on : lower , raise , or the IP is throttled (add proxies or wait).
- Empty CSV: the keyword is too narrow or the coordinates are wrong. Widen or fix the coordinates.
- Connection refused: the container is down. Run .