How do I send a request with multiple params?

Using the Discovery API, you can search for leads based on multiple criteria at once.

Queries are space separated key colon values. For example to find all companies with an Alexa rank between 1 & 1000, 30 employees or more, and based in SF the query would look like this:

curl \
  -G --data-urlencode 'query=and:(alexa_rank:0~1000 employees:30~ city:"San Francisco") \
  --data-urlencode 'sort=alexa_asc \
  -u {key}:*********************************