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We publish data about our mobile and PSD2-regulated API performance every quarter.

The data shows the quality of service we provide to third parties building banking apps using our APIs. It is important to us to demonstrate that we provide the same level of service to third parties that we give to our own app.

If you’d like to read more about our APIs, you can check out our developer documentation, and you can find more information about the revised Payment Service Directive (PSD2) in general here.

Service Availability (%)
Average Response (ms)
Error rate (% failed calls)
Successful API calls (%)
Starling Bank Logo
100.00
42
0.00
100.00
Industry iconIndustry-wide
99.00
375
0.55
99.45

Source

Starling headline performance for Q4 2023

Day
Uptime mobile (%)
Downtime mobile (%)
Uptime dedicated (%)
Downtime dedicated (%)
Error rate dedicated (%)
1
100.00
0.00
100.00
0.00
0.00
2
100.00
0.00
100.00
0.00
0.00
3
100.00
0.00
100.00
0.00
0.00
4
100.00
0.00
100.00
0.00
0.00
5
100.00
0.00
100.00
0.00
0.00
6
100.00
0.00
100.00
0.00
0.00
7
100.00
0.00
100.00
0.00
0.00
8
100.00
0.00
100.00
0.00
0.00
9
100.00
0.00
100.00
0.00
0.00
10
100.00
0.00
100.00
0.00
0.00
11
100.00
0.00
100.00
0.00
0.00
12
100.00
0.00
100.00
0.00
0.00
13
100.00
0.00
100.00
0.00
0.00
14
100.00
0.00
100.00
0.00
0.00
15
100.00
0.00
100.00
0.00
0.00
16
100.00
0.00
100.00
0.00
0.00
17
100.00
0.00
100.00
0.00
0.00
18
100.00
0.00
100.00
0.00
0.00
19
100.00
0.00
100.00
0.00
0.00
20
100.00
0.00
100.00
0.00
0.00
21
100.00
0.00
100.00
0.00
0.00
22
100.00
0.00
100.00
0.00
0.00
23
100.00
0.00
100.00
0.00
0.00
24
100.00
0.00
100.00
0.00
0.00
25
100.00
0.00
100.00
0.00
0.00
26
100.00
0.00
100.00
0.00
0.00
27
100.00
0.00
100.00
0.00
0.00
28
100.00
0.00
100.00
0.00
0.00
29
100.00
0.00
100.00
0.00
0.00
30
100.00
0.00
100.00
0.00
0.00
31
100.00
0.00
100.00
0.00
0.00
32
100.00
0.00
100.00
0.00
0.00
33
100.00
0.00
100.00
0.00
0.00
34
100.00
0.00
100.00
0.00
0.00
35
100.00
0.00
100.00
0.00
0.00
36
100.00
0.00
100.00
0.00
0.00
37
100.00
0.00
100.00
0.00
0.00
38
100.00
0.00
99.94
0.06
0.02
39
100.00
0.00
100.00
0.00
0.00
40
100.00
0.00
100.00
0.00
0.00
41
100.00
0.00
100.00
0.00
0.00
42
100.00
0.00
100.00
0.00
0.00
43
100.00
0.00
100.00
0.00
0.00
44
100.00
0.00
100.00
0.00
0.00
45
100.00
0.00
100.00
0.00
0.00
46
100.00
0.00
100.00
0.00
0.00
47
100.00
0.00
100.00
0.00
0.00
48
100.00
0.00
100.00
0.00
0.00
49
100.00
0.00
100.00
0.00
0.00
50
100.00
0.00
100.00
0.00
0.00
51
100.00
0.00
100.00
0.00
0.00
52
100.00
0.00
100.00
0.00
0.00
53
100.00
0.00
100.00
0.00
0.00
54
100.00
0.00
100.00
0.00
0.00
55
100.00
0.00
100.00
0.00
0.00
56
100.00
0.00
100.00
0.00
0.00
57
100.00
0.00
100.00
0.00
0.00
58
100.00
0.00
100.00
0.00
0.00
59
100.00
0.00
100.00
0.00
0.00
60
100.00
0.00
100.00
0.00
0.00
61
100.00
0.00
100.00
0.00
0.00
62
100.00
0.00
100.00
0.00
0.00
63
100.00
0.00
100.00
0.00
0.00
64
100.00
0.00
100.00
0.00
0.00
65
100.00
0.00
100.00
0.00
0.00
66
100.00
0.00
100.00
0.00
0.00
67
100.00
0.00
100.00
0.00
0.00
68
100.00
0.00
100.00
0.00
0.00
69
100.00
0.00
100.00
0.00
0.00
70
100.00
0.00
100.00
0.00
0.00
71
100.00
0.00
100.00
0.00
0.00
72
100.00
0.00
100.00
0.00
0.00
73
100.00
0.00
100.00
0.00
0.00
74
100.00
0.00
100.00
0.00
0.00
75
100.00
0.00
100.00
0.00
0.00
76
100.00
0.00
100.00
0.00
0.00
77
100.00
0.00
100.00
0.00
0.00
78
100.00
0.00
100.00
0.00
0.00
79
100.00
0.00
100.00
0.00
0.00
80
100.00
0.00
100.00
0.00
0.00
81
100.00
0.00
100.00
0.00
0.00
82
100.00
0.00
100.00
0.00
0.00
83
100.00
0.00
100.00
0.00
0.00
84
100.00
0.00
100.00
0.00
0.00
85
100.00
0.00
100.00
0.00
0.00
86
100.00
0.00
100.00
0.00
0.00
87
100.00
0.00
100.00
0.00
0.00
88
100.00
0.00
100.00
0.00
0.00
89
100.00
0.00
100.00
0.00
0.00
90
100.00
0.00
100.00
0.00
0.00
91
100.00
0.00
100.00
0.00
0.00
92
100.00
0.00
100.00
0.00
0.00

Interface response times in milliseconds

Day
Payment Initiation (Dedicated)
Account information (Dedicated)
Funds check (Dedicated)
Payment Initiation (Mobile)
Account information (Mobile)
1
147
43
14
143
12
2
180
45
15
147
12
3
224
47
15
171
12
4
198
48
17
164
13
5
193
46
15
150
12
6
174
46
14
148
12
7
160
42
14
141
11
8
163
42
14
137
11
9
167
45
15
143
12
10
168
44
14
147
12
11
166
44
14
146
12
12
182
45
15
141
12
13
160
48
15
140
13
14
152
45
14
140
12
15
156
44
14
134
12
16
182
47
14
140
13
17
178
47
15
143
12
18
176
47
14
155
13
19
182
50
15
153
15
20
173
49
15
152
12
21
166
46
15
151
12
22
163
43
15
147
12
23
202
48
15
152
13
24
177
48
15
158
14
25
171
48
14
158
14
26
170
46
15
143
13
27
175
46
15
145
13
28
152
42
14
139
13
29
162
39
13
139
11
30
172
44
15
147
12
31
180
43
15
157
16
32
174
45
15
162
13
33
175
42
15
160
14
34
192
42
15
164
12
35
182
41
15
160
13
36
171
39
14
140
11
37
179
42
15
149
12
38
171
41
15
152
17
39
165
43
16
150
12
40
175
44
16
142
11
41
166
43
14
138
11
42
150
40
14
133
10
43
139
38
13
130
10
44
197
40
14
142
12
45
165
42
14
143
12
46
161
44
15
144
12
47
189
42
14
150
12
48
149
41
15
141
12
49
158
40
14
139
11
50
137
39
14
131
11
51
176
41
13
136
12
52
179
41
14
140
12
53
198
42
14
151
12
54
194
42
14
148
12
55
202
42
14
147
12
56
176
40
14
143
11
57
164
39
14
138
11
58
209
41
14
151
12
59
173
41
13
148
12
60
189
41
12
147
12
61
204
43
13
144
12
62
194
45
14
146
11
63
159
41
14
141
11
64
173
41
14
133
11
65
201
44
14
156
12
66
194
44
14
147
12
67
206
43
14
141
11
68
194
44
14
144
12
69
197
45
14
141
11
70
226
42
15
159
10
71
221
40
14
147
10
72
198
42
14
146
10
73
199
42
14
148
13
74
191
43
15
148
11
75
187
42
14
142
10
76
189
41
14
136
10
77
246
36
13
142
9
78
156
38
14
129
9
79
191
40
13
133
10
80
192
40
15
140
10
81
146
40
14
142
10
82
163
41
14
141
10
83
162
41
15
140
10
84
174
39
14
142
10
85
181
37
14
138
10
86
154
36
14
132
10
87
160
36
13
132
10
88
159
39
14
138
10
89
159
40
14
138
10
90
178
40
14
138
10
91
184
39
14
139
10
92
150
38
15
136
10

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