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
47
0.00
100.00
Industry iconIndustry-wide
99.55
351
0.63
99.37

Source

Starling headline performance for Q1 2025

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
99.98
0.02
99.97
0.03
0.12
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
99.97
0.03
0.01
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

Interface response times in milliseconds

Day
Payment Initiation (Dedicated)
Account information (Dedicated)
Funds check (Dedicated)
Payment Initiation (Mobile)
Account information (Mobile)
1
303
52
14
207
13
2
313
54
14
212
14
3
325
53
14
231
14
4
296
51
13
217
13
5
312
50
13
203
13
6
332
53
14
217
14
7
323
53
14
219
14
8
325
54
14
213
14
9
296
54
15
212
14
10
308
53
14
206
13
11
288
50
12
188
12
12
265
44
12
179
13
13
313
46
13
209
14
14
310
48
14
217
14
15
312
48
18
217
14
16
317
48
13
218
14
17
316
48
14
217
14
18
294
46
13
206
13
19
276
44
13
194
13
20
323
46
17
213
16
21
344
45
15
217
14
22
309
44
15
215
13
23
283
44
13
212
13
24
321
45
14
215
14
25
287
45
13
207
13
26
285
43
13
198
13
27
308
43
13
210
14
28
294
43
15
211
14
29
453
43
13
378
14
30
493
47
14
456
14
31
297
48
14
224
14
32
279
49
13
209
13
33
279
45
13
197
12
34
313
49
15
223
14
35
313
47
13
231
13
36
307
50
14
222
13
37
337
48
23
218
13
38
331
47
15
223
13
39
303
46
13
210
13
40
290
46
14
205
16
41
317
48
14
219
13
42
315
48
14
217
13
43
309
48
13
214
14
44
307
50
14
218
13
45
315
52
14
222
13
46
295
48
13
208
12
47
283
44
12
201
12
48
325
46
18
215
14
49
313
46
14
216
13
50
338
46
14
217
13
51
317
44
12
216
14
52
319
44
12
218
13
53
304
42
13
204
12
54
282
41
11
197
12
55
306
43
11
213
13
56
314
44
12
215
13
57
345
43
12
282
13
58
560
45
13
483
13
59
324
50
13
242
14
60
299
50
12
214
13
61
298
45
12
210
12
62
330
48
12
224
13
63
299
45
13
226
13
64
307
45
13
224
16
65
322
45
12
220
13
66
322
45
12
221
13
67
285
43
12
212
13
68
270
42
12
199
12
69
305
44
13
216
13
70
319
45
12
226
13
71
337
47
13
241
13
72
341
48
13
238
13
73
328
48
13
243
13
74
301
43
12
225
12
75
295
41
12
215
12
76
358
46
16
234
14
77
315
47
12
236
13
78
336
50
12
233
13
79
327
51
13
235
14
80
352
52
16
250
18
81
308
51
15
238
14
82
321
50
18
228
15
83
347
52
17
249
15
84
328
49
14
241
14
85
327
49
13
237
13
86
321
48
13
242
14
87
334
51
16
252
14
88
324
46
12
233
12
89
294
46
13
223
12
90
312
51
13
236
13

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