diff --git a/exporter.go b/exporter.go
index e204943..fa8104b 100644
--- a/exporter.go
+++ b/exporter.go
@@ -577,7 +577,7 @@ func (e *Exporter) collectHotspotMetrics(wg *sync.WaitGroup, ch chan<- prometheu
 func (e *Exporter) collectHotspotActivityMetrics(wg *sync.WaitGroup, ch chan<- prometheus.Metric, account *Account, hotspotData heliumapi.AccountHotspot) {
 	defer wg.Done()
 
-	hotspotActivityForAddress, err := heliumapi.GetHotspotActivityCount(hotspotData.Address)
+	hotspotActivityForAddress, err := heliumapi.GetHotspotActivityCounts(hotspotData.Address)
 	if err != nil {
 		fmt.Println(err)
 		return
diff --git a/go.mod b/go.mod
index dace333..d0a766e 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,6 @@ require (
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.29.0 // indirect
-	github.com/prometheus/exporter-toolkit v0.6.1 // indirect
 	github.com/prometheus/procfs v0.6.0 // indirect
 	golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
 	google.golang.org/protobuf v1.26.0-rc.1 // indirect
diff --git a/heliumapi/accounts.go b/heliumapi/accounts.go
index 67ad492..ca11bc0 100644
--- a/heliumapi/accounts.go
+++ b/heliumapi/accounts.go
@@ -8,6 +8,7 @@ import (
 	"github.com/helium-blockchain-exporter/heliumapi/activity"
 )
 
+// query https://docs.helium.com/api/blockchain/accounts#account-for-address
 func GetAccountForAddress(account string) (*Account, error) {
 	path := "/v1/accounts/" + account
 
@@ -27,6 +28,7 @@ func GetAccountForAddress(account string) (*Account, error) {
 	return &respobject.Data, nil
 }
 
+// query https://docs.helium.com/api/blockchain/accounts#activity-for-account
 func GetActivityForAccount(account string, filterTypes []string, minTime *time.Time, maxTime *time.Time) (*activity.Activities, error) {
 	path := "/v1/accounts/" + account + "/activity"
 	params := map[string]string{}
@@ -57,6 +59,7 @@ func GetActivityForAccount(account string, filterTypes []string, minTime *time.T
 	return activity.NewActivities(combinedResp)
 }
 
+// query https://docs.helium.com/api/blockchain/accounts#activity-counts-for-account
 func GetActivityCountsForAccount(account string) (*ActivityCounts, error) {
 	path := "/v1/accounts/" + account + "/activity/count"
 
@@ -76,6 +79,7 @@ func GetActivityCountsForAccount(account string) (*ActivityCounts, error) {
 	return &respobject.Data, nil
 }
 
+// query https://docs.helium.com/api/blockchain/accounts#reward-totals-for-an-account
 func GetRewardTotalsForAccount(account string, minTime *time.Time, maxTime *time.Time) (*RewardTotal, error) {
 	path := "/v1/accounts/" + account + "/rewards/sum"
 	params := map[string]string{}
@@ -102,6 +106,7 @@ func GetRewardTotalsForAccount(account string, minTime *time.Time, maxTime *time
 	return &respobject.Data, nil
 }
 
+// query https://docs.helium.com/api/blockchain/accounts#hotspots-for-account
 func GetHotspotsForAccount(account string) (*[]AccountHotspot, error) {
 	path := "/v1/accounts/" + account + "/hotspots"
 
diff --git a/heliumapi/activity/activities.go b/heliumapi/activity/activities.go
index d6c76a9..1a36746 100644
--- a/heliumapi/activity/activities.go
+++ b/heliumapi/activity/activities.go
@@ -9,6 +9,11 @@ type ActivityResp struct {
 	Data []json.RawMessage `json:"data"`
 }
 
+// Parse the response from the activity api.
+// The helium api return a list of of activities in an array with mixed type.
+// In order to operate on the array, we determine the type using the "type"
+// property, unmarshal the activity with the proper model, and add it to the proper
+// array in an Activities structure.
 func NewActivities(resp ActivityResp) (*Activities, error) {
 	type ActivityType struct {
 		Type string `json:"type"`
diff --git a/heliumapi/hotspots.go b/heliumapi/hotspots.go
index 2cd630d..dba606e 100644
--- a/heliumapi/hotspots.go
+++ b/heliumapi/hotspots.go
@@ -6,7 +6,8 @@ import (
 	"time"
 )
 
-func GetHotspotActivityCount(hotspot string) (*ActivityCounts, error) {
+// query https://docs.helium.com/api/blockchain/hotspots#hotspots-activity-counts
+func GetHotspotActivityCounts(hotspot string) (*ActivityCounts, error) {
 	path := "/v1/hotspots/" + hotspot + "/activity/count"
 
 	// query the api
@@ -25,6 +26,7 @@ func GetHotspotActivityCount(hotspot string) (*ActivityCounts, error) {
 	return &respobject.Data, nil
 }
 
+// query https://docs.helium.com/api/blockchain/hotspots#reward-total-for-a-hotspot
 func GetRewardsTotalForHotspot(hotspot string, minTime *time.Time, maxTime *time.Time) (*RewardTotal, error) {
 	path := "/v1/hotspots/" + hotspot + "/rewards/sum"
 	params := map[string]string{}
diff --git a/heliumapi/oracleprices.go b/heliumapi/oracleprices.go
index aaa9229..e59c848 100644
--- a/heliumapi/oracleprices.go
+++ b/heliumapi/oracleprices.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 )
 
+// query https://docs.helium.com/api/blockchain/oracle-prices#current-oracle-price
 func GetCurrentOraclePrice() (*CurrentOraclePrice, error) {
 	path := "/v1/oracle/prices/current"
 
diff --git a/heliumapi/query.go b/heliumapi/query.go
index c0df6b9..a544a82 100644
--- a/heliumapi/query.go
+++ b/heliumapi/query.go
@@ -12,6 +12,7 @@ var (
 	client = &http.Client{}
 )
 
+// createGetRequest create a GET request to the helium api
 func createGetRequest(path string, params map[string]string) (*http.Request, error) {
 	req, err := http.NewRequest("GET", fmt.Sprintf("%s/%s", ApiUrl, path), nil)
 
@@ -33,6 +34,7 @@ func createGetRequest(path string, params map[string]string) (*http.Request, err
 	return req, err
 }
 
+// getHeliumApi query a regular helium api endpoint
 func getHeliumApi(path string, params *map[string]string) ([]byte, error) {
 	// if params is nil, set it to an empty map
 	if params == nil {
@@ -60,6 +62,9 @@ func getHeliumApi(path string, params *map[string]string) ([]byte, error) {
 	return body, nil
 }
 
+// getHeliumApiWithCursor query a helium api with a cursor
+// It will continue to query the api until all the cursors are exhausted. Combine all the
+// responses in a single object.
 func getHeliumApiWithCursor(path string, params *map[string]string) ([][]byte, error) {
 	// if params is nil, set it to an empty map
 	if params == nil {
diff --git a/heliumapi/stats.go b/heliumapi/stats.go
index bd50948..417a8c0 100644
--- a/heliumapi/stats.go
+++ b/heliumapi/stats.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 )
 
+// query https://docs.helium.com/api/blockchain/stats#blockchain-stats
 func GetBlockchainStats() (*BlockchainStats, error) {
 	path := "/v1/stats"