Starling is a champion of the API economy and Open Banking. This is a ground zero commitment for us: back in 2014 when Starling was founded we decided to build our bank on open APIs from Day 1. We did this not because it was a legal requirement, but because we felt - and still do feel - that it was the right thing to do.

We have also had a deep-seated belief in the importance of transparency from Day 1.

On this page, we are publishing our quarterly PSD2 API performance data. This shows the quality of service we provide to third parties building banking apps. As part of this process 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.

Select the quarter you want to see

Service Availability (%)
Average Response (ms)
Error rate (% failed calls)
Successful API calls (%)
Starling Bank Logo
100
30
0
100
Industry iconIndustry-wide
99.33
455
0.62
99.38

Source

Starling headline performance for Q2 2022

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
0.01
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
0.01
20
99.95
0.05
99.99
0.01
0.13
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
100.00
0.00
0.00
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
0.01
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
0.02
91
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
104
34
29
73
14
2
98
36
18
72
8
3
154
31
18
99
7
4
102
44
20
70
60
5
135
33
19
100
17
6
101
34
18
77
14
7
95
34
19
73
13
8
96
38
18
74
28
9
95
28
18
71
9
10
94
28
18
71
9
11
112
33
19
85
17
12
108
32
19
82
24
13
97
32
19
74
15
14
98
44
20
74
18
15
94
39
19
69
11
16
93
28
18
67
9
17
96
28
18
68
9
18
90
28
18
66
9
19
90
31
19
67
29
20
95
35
19
67
70
21
94
29
19
64
12
22
105
34
19
67
21
23
102
30
19
64
9
24
100
30
19
64
9
25
98
39
20
67
32
26
99
34
19
65
37
27
96
33
19
67
10
28
137
39
19
88
30
29
101
37
18
67
25
30
96
33
18
62
10
31
94
40
18
62
10
32
93
30
18
60
8
33
104
38
18
65
20
34
92
38
19
64
32
35
127
37
19
89
17
36
137
38
19
89
22
37
91
27
17
60
12
38
95
27
17
59
12
39
98
32
17
65
42
40
96
31
17
66
10
41
92
29
17
62
16
42
90
30
17
61
32
43
94
34
17
63
33
44
98
26
16
61
8
45
92
29
17
58
9
46
123
25
15
65
17
47
95
28
17
65
12
48
94
28
17
62
12
49
93
29
17
61
15
50
98
32
17
62
24
51
98
27
16
62
8
52
92
26
17
59
8
53
94
34
17
63
23
54
95
27
16
65
17
55
89
33
17
62
17
56
93