API performance data - Starling Bank

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.

Select the quarter you want to see

	Service Availability (%)	Average Response (ms)	Error rate (% failed calls)	Successful API calls (%)
	100.00	45	0.00	100.00
Industry-wide	99.37	407	0.68	99.32

Source

Starling headline performance for Q3 2023

Day	Uptime mobile (%)	Uptime dedicated (%)	Downtime dedicated (%)	Error rate dedicated (%)
1	100.00	100.00	0.00	0.00
2	100.00	100.00	0.00	0.00
3	100.00	100.00	0.00	0.00
4	100.00	100.00	0.00	0.00
5	100.00	100.00	0.00	0.00
6	100.00	100.00	0.00	0.00
7	100.00	100.00	0.00	0.00
8	100.00	100.00	0.00	0.00
9	100.00	100.00	0.00	0.00
10	100.00	100.00	0.00	0.00
11	100.00	100.00	0.00	0.00
12	100.00	100.00	0.00	0.00
13	100.00	99.98	0.02	0.00
14	100.00	100.00	0.00	0.00
15	100.00	100.00	0.00	0.00
16	100.00	100.00	0.00	0.01
17	100.00	100.00	0.00	0.01
18	100.00	100.00	0.00	0.00
19	100.00	99.98	0.02	0.02
20	100.00	100.00	0.00	0.00
21	100.00	100.00	0.00	0.00
22	100.00	100.00	0.00	0.01
23	100.00	100.00	0.00	0.00
24	100.00	100.00	0.00	0.01
25	100.00	100.00	0.00	0.00
26	100.00	100.00	0.00	0.00
27	100.00	99.99	0.01	0.02
28	100.00	100.00	0.00	0.00
29	100.00	100.00	0.00	0.00
30	100.00	100.00	0.00	0.00
31	100.00	100.00	0.00	0.00
32	100.00	100.00	0.00	0.00
33	100.00	100.00	0.00	0.00
34	100.00	99.99	0.01	0.02
35	100.00	100.00	0.00	0.00
36	100.00	100.00	0.00	0.00
37	100.00	100.00	0.00	0.00
38	100.00	100.00	0.00	0.00
39	100.00	100.00	0.00	0.00
40	100.00	100.00	0.00	0.00
41	100.00	100.00	0.00	0.00
42	100.00	100.00	0.00	0.00
43	100.00	100.00	0.00	0.00
44	100.00	100.00	0.00	0.00
45	100.00	100.00	0.00	0.00
46	100.00	100.00	0.00	0.00
47	100.00	100.00	0.00	0.00
48	100.00	100.00	0.00	0.00
49	100.00	100.00	0.00	0.00
50	100.00	100.00	0.00	0.00
51	100.00	100.00	0.00	0.00
52	100.00	100.00	0.00	0.00
53	100.00	100.00	0.00	0.00
54	100.00	100.00	0.00	0.00
55	100.00	100.00	0.00	0.00
56	100.00	100.00	0.00	0.00
57	100.00	100.00	0.00	0.00
58	100.00	100.00	0.00	0.00
59	100.00	100.00	0.00	0.00
60	100.00	100.00	0.00	0.00
61	100.00	100.00	0.00	0.00
62	100.00	100.00	0.00	0.00
63	100.00	100.00	0.00	0.00
64	100.00	100.00	0.00	0.01
65	100.00	100.00	0.00	0.00
66	100.00	100.00	0.00	0.00
67	100.00	100.00	0.00	0.00
68	100.00	100.00	0.00	0.02
69	100.00	100.00	0.00	0.01
70	100.00	100.00	0.00	0.00
71	100.00	100.00	0.00	0.00
72	100.00	100.00	0.00	0.00
73	100.00	100.00	0.00	0.00
74	100.00	100.00	0.00	0.00
75	100.00	100.00	0.00	0.00
76	100.00	100.00	0.00	0.01
77	100.00	99.99	0.01	0.02
78	100.00	100.00	0.00	0.00
79	100.00	100.00	0.00	0.00
80	100.00	100.00	0.00	0.00
81	100.00	100.00	0.00	0.00
82	100.00	100.00	0.00	0.00
83	100.00	100.00	0.00	0.01
84	100.00	100.00	0.00	0.00
85	100.00	100.00	0.00	0.00
86	100.00	100.00	0.00	0.00
87	100.00	100.00	0.00	0.00
88	100.00	100.00	0.00	0.00
89	100.00	100.00	0.00	0.00
90	100.00	100.00	0.00	0.00
91	100.00	100.00	0.00	0.00
92	100.00	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	156	43	14	137	17
2	158	44	15	133	18
3	174	45	15	144	19
4	207	45	15	162	19
5	181	45	14	154	20
6	156	43	14	139	20
7	156	44	15	141	20
8	172	45	15	145	21
9	164	43	15	137	20
10	169	45	15	142	21
11	166	47	15	145	22
12	153	43	15	142	22
13	141	44	15	141	23
14	153	43	15	141	23
15	162	42	15	143	23
16	167	41	15	140	23
17	164	43	15	145	24
18	153	43	15	144	24
19	157	43	15	145	26
20	157	41	15	143	25
21	157	44	16	141	26
22	168	40	15	141	26
23	161	41	16	139	26
24	163	44	16	158	27
25	154	43	17	132	27
26	152	45	15	135	20
27	155	46	15	136	12
28	154	46	16	140	12
29	167	44	15	143	11
30	160	44	16	138	11
31	157	47	16	145	12
32	190	51	15	172	12
33	169	45	16	149	12
34	197	48	16	183	12
35	270	47	16	228	12
36	195	45	16	155	11
37	182	44	16	146	11
38	179	47	15	148	12
39	193	47	16	153	12
40	177	46	16	149	11
41	177	47	16	149	12
42	173	47	16	145	11
43	176	43	15	140	11
44	199	43	16	136	11
45	185	47	15	146	12
46	173	46	15	147	12
47	224	47	15	148	12
48	187	47	15	144	12
49	181	48	15	145	12
50	155	44	16	146	11
51	188	43	15	141	11
52	167	48	16	145	12
53	179	47	15	153	12
54	178	47	15	155	14
55	181	45	15	149	11
56	167	48	16	148	12
57	175	46	16	147	11
58	173	44	15	141	12
59	170	46	16	150	12
60	189	48	16	152	12
61	182	49	16	154	14
62	166	49	16	149	13
63	181	50	15	146	12
64	171	46	15	141	11
65	182	45	15	139	11
66	183	47	15	143	11
67	178	49

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	156	43	14	137	17
2	158	44	15	133	18
3	174	45	15	144	19
4	207	45	15	162	19
5	181	45	14	154	20
6	156	43	14	139	20
7	156	44	15	141	20
8	172	45	15	145	21
9	164	43	15	137	20
10	169	45	15	142	21
11	166	47	15	145	22
12	153	43	15	142	22
13	141	44	15	141	23
14	153	43	15	141	23
15	162	42	15	143	23
16	167	41	15	140	23
17	164	43	15	145	24
18	153	43	15	144	24
19	157	43	15	145	26
20	157	41	15	143	25
21	157	44	16	141	26
22	168	40	15	141	26
23	161	41	16	139	26
24	163	44	16	158	27
25	154	43	17	132	27
26	152	45	15	135	20
27	155	46	15	136	12
28	154	46	16	140	12
29	167	44	15	143	11
30	160	44	16	138	11
31	157	47	16	145	12
32	190	51	15	172	12
33	169	45	16	149	12
34	197	48	16	183	12
35	270	47	16	228	12
36	195	45	16	155	11
37	182	44	16	146	11
38	179	47	15	148	12
39	193	47	16	153	12
40	177	46	16	149	11
41	177	47	16	149	12
42	173	47	16	145	11
43	176	43	15	140	11
44	199	43	16	136	11
45	185	47	15	146	12
46	173	46	15	147	12
47	224	47	15	148	12
48	187	47	15	144	12
49	181	48	15	145	12
50	155	44	16	146	11
51	188	43	15	141	11
52	167	48	16	145	12
53	179	47	15	153	12
54	178	47	15	155	14
55	181	45	15	149	11
56	167	48	16	148	12
57	175	46	16	147	11
58	173	44	15	141	12
59	170	46	16	150	12
60	189	48	16	152	12
61	182	49	16	154	14
62	166	49	16	149	13
63	181	50	15	146	12
64	171	46	15	141	11
65	182	45	15	139	11
66	183	47	15	143	11
67	178	49

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	156	43	14	137	17
2	158	44	15	133	18
3	174	45	15	144	19
4	207	45	15	162	19
5	181	45	14	154	20
6	156	43	14	139	20
7	156	44	15	141	20
8	172	45	15	145	21
9	164	43	15	137	20
10	169	45	15	142	21
11	166	47	15	145	22
12	153	43	15	142	22
13	141	44	15	141	23
14	153	43	15	141	23
15	162	42	15	143	23
16	167	41	15	140	23
17	164	43	15	145	24
18	153	43	15	144	24
19	157	43	15	145	26
20	157	41	15	143	25
21	157	44	16	141	26
22	168	40	15	141	26
23	161	41	16	139	26
24	163	44	16	158	27
25	154	43	17	132	27
26	152	45	15	135	20
27	155	46	15	136	12
28	154	46	16	140	12
29	167	44	15	143	11
30	160	44	16	138	11
31	157	47	16	145	12
32	190	51	15	172	12
33	169	45	16	149	12
34	197	48	16	183	12
35	270	47	16	228	12
36	195	45	16	155	11
37	182	44	16	146	11
38	179	47	15	148	12
39	193	47	16	153	12
40	177	46	16	149	11
41	177	47	16	149	12
42	173	47	16	145	11
43	176	43	15	140	11
44	199	43	16	136	11
45	185	47	15	146	12
46	173	46	15	147	12
47	224	47	15	148	12
48	187	47	15	144	12
49	181	48	15	145	12
50	155	44	16	146	11
51	188	43	15	141	11
52	167	48	16	145	12
53	179	47	15	153	12
54	178	47	15	155	14
55	181	45	15	149	11
56	167	48	16	148	12
57	175	46	16	147	11
58	173	44	15	141	12
59	170	46	16	150	12
60	189	48	16	152	12
61	182	49	16	154	14
62	166	49	16	149	13
63	181	50	15	146	12
64	171	46	15	141	11
65	182	45	15	139	11
66	183	47	15	143	11
67	178	49

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	156	43	14	137	17
2	158	44	15	133	18
3	174	45	15	144	19
4	207	45	15	162	19
5	181	45	14	154	20
6	156	43	14	139	20
7	156	44	15	141	20
8	172	45	15	145	21
9	164	43	15	137	20
10	169	45	15	142	21
11	166	47	15	145	22
12	153	43	15	142	22
13	141	44	15	141	23
14	153	43	15	141	23
15	162	42	15	143	23
16	167	41	15	140	23
17	164	43	15	145	24
18	153	43	15	144	24
19	157	43	15	145	26
20	157	41	15	143	25
21	157	44	16	141	26
22	168	40	15	141	26
23	161	41	16	139	26
24	163	44	16	158	27
25	154	43	17	132	27
26	152	45	15	135	20
27	155	46	15	136	12
28	154	46	16	140	12
29	167	44	15	143	11
30	160	44	16	138	11
31	157	47	16	145	12
32	190	51	15	172	12
33	169	45	16	149	12
34	197	48	16	183	12
35	270	47	16	228	12
36	195	45	16	155	11
37	182	44	16	146	11
38	179	47	15	148	12
39	193	47	16	153	12
40	177	46	16	149	11
41	177	47	16	149	12
42	173	47	16	145	11
43	176	43	15	140	11
44	199	43	16	136	11
45	185	47	15	146	12
46	173	46	15	147	12
47	224	47	15	148	12
48	187	47	15	144	12
49	181	48	15	145	12
50	155	44	16	146	11
51	188	43	15	141	11
52	167	48	16	145	12
53	179	47	15	153	12
54	178	47	15	155	14
55	181	45	15	149	11
56	167	48	16	148	12
57	175	46	16	147	11
58	173	44	15	141	12
59	170	46	16	150	12
60	189	48	16	152	12
61	182	49	16	154	14
62	166	49	16	149	13
63	181	50	15	146	12
64	171	46	15	141	11
65	182	45	15	139	11
66	183	47	15	143	11
67	178	49