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	32	0	100
Industry-wide	99.13	412	0.55	99.22

Source

Starling headline performance for Q1 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	0.01
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	100.00	0.00	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	0.00
17	100.00	100.00	0.00	0.07
18	100.00	100.00	0.00	0.00
19	100.00	100.00	0.00	0.00
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	0.00
23	100.00	100.00	0.00	0.00
24	100.00	100.00	0.00	0.00
25	100.00	100.00	0.00	0.00
26	100.00	100.00	0.00	0.00
27	100.00	100.00	0.00	0.00
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	0.04
32	100.00	100.00	0.00	0.00
33	100.00	100.00	0.00	0.00
34	100.00	100.00	0.00	0.01
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	0.01
38	100.00	100.00	0.00	0.01
39	100.00	100.00	0.00	0.00
40	100.00	99.99	0.01	0.02
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	99.99	0.01	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	0.00
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	0.00
69	100.00	100.00	0.00	0.00
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	0.00
77	100.00	100.00	0.00	0.00
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	0.00
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

Interface response times in milliseconds

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	203	25	14	163	10
2	199	25	14	174	10
3	204	25	14	181	10
4	188	27	17	185	10
5	174	27	14	162	10
6	164	29	14	155	10
7	173	27	14	143	10
8	174	27	15	139	11
9	176	27	14	148	11
10	160	27	15	153	10
11	146	26	17	151	11
12	148	30	16	155	11
13	157	28	14	153	11
14	164	28	14	146	11
15	155	27	14	139	11
16	162	28	15	150	12
17	158	61	14	152	22
18	169	29	15	154	12
19	182	29	15	156	12
20	205	29	15	163	12
21	223	30	14	157	13
22	204	28	15	152	12
23	213	30	15	160	13
24	195	29	14	161	14
25	188	28	14	162	12
26	200	29	14	158	13
27	208	31	16	165	13
28	223	29	14	153	13
29	225	28	14	151	13
30	191	30	14	163	13
31	188	32	14	167	24
32	237	32	14	189	11
33	276	31	20	220	11
34	231	31	14	177	11
35	233	30	15	166	11
36	226	31	14	153	11
37	232	32	14	169	11
38	96	30	14	167	11
39	167	30	14	170	11
40	195	31	14	165	11
41	252	32	14	169	11
42	249	33	14	163	11
43	266	36	14	155	11
44	274	36	14	167	12
45	276	37	20	187	12
46	261	37	15	165	12
47	265	36	16	167	12
48	261	36	14	169	12
49	243	36	13	160	12
50	246	34	13	154	12
51	277	37	14	168	13
52	244	38	14	175	13
53	259	37	14	168	13
54	239	35	14	168	12
55	252	37	14	171	12
56	255	39	13	163	13
57	258	38

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	203	25	14	163	10
2	199	25	14	174	10
3	204	25	14	181	10
4	188	27	17	185	10
5	174	27	14	162	10
6	164	29	14	155	10
7	173	27	14	143	10
8	174	27	15	139	11
9	176	27	14	148	11
10	160	27	15	153	10
11	146	26	17	151	11
12	148	30	16	155	11
13	157	28	14	153	11
14	164	28	14	146	11
15	155	27	14	139	11
16	162	28	15	150	12
17	158	61	14	152	22
18	169	29	15	154	12
19	182	29	15	156	12
20	205	29	15	163	12
21	223	30	14	157	13
22	204	28	15	152	12
23	213	30	15	160	13
24	195	29	14	161	14
25	188	28	14	162	12
26	200	29	14	158	13
27	208	31	16	165	13
28	223	29	14	153	13
29	225	28	14	151	13
30	191	30	14	163	13
31	188	32	14	167	24
32	237	32	14	189	11
33	276	31	20	220	11
34	231	31	14	177	11
35	233	30	15	166	11
36	226	31	14	153	11
37	232	32	14	169	11
38	96	30	14	167	11
39	167	30	14	170	11
40	195	31	14	165	11
41	252	32	14	169	11
42	249	33	14	163	11
43	266	36	14	155	11
44	274	36	14	167	12
45	276	37	20	187	12
46	261	37	15	165	12
47	265	36	16	167	12
48	261	36	14	169	12
49	243	36	13	160	12
50	246	34	13	154	12
51	277	37	14	168	13
52	244	38	14	175	13
53	259	37	14	168	13
54	239	35	14	168	12
55	252	37	14	171	12
56	255	39	13	163	13
57	258	38

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	203	25	14	163	10
2	199	25	14	174	10
3	204	25	14	181	10
4	188	27	17	185	10
5	174	27	14	162	10
6	164	29	14	155	10
7	173	27	14	143	10
8	174	27	15	139	11
9	176	27	14	148	11
10	160	27	15	153	10
11	146	26	17	151	11
12	148	30	16	155	11
13	157	28	14	153	11
14	164	28	14	146	11
15	155	27	14	139	11
16	162	28	15	150	12
17	158	61	14	152	22
18	169	29	15	154	12
19	182	29	15	156	12
20	205	29	15	163	12
21	223	30	14	157	13
22	204	28	15	152	12
23	213	30	15	160	13
24	195	29	14	161	14
25	188	28	14	162	12
26	200	29	14	158	13
27	208	31	16	165	13
28	223	29	14	153	13
29	225	28	14	151	13
30	191	30	14	163	13
31	188	32	14	167	24
32	237	32	14	189	11
33	276	31	20	220	11
34	231	31	14	177	11
35	233	30	15	166	11
36	226	31	14	153	11
37	232	32	14	169	11
38	96	30	14	167	11
39	167	30	14	170	11
40	195	31	14	165	11
41	252	32	14	169	11
42	249	33	14	163	11
43	266	36	14	155	11
44	274	36	14	167	12
45	276	37	20	187	12
46	261	37	15	165	12
47	265	36	16	167	12
48	261	36	14	169	12
49	243	36	13	160	12
50	246	34	13	154	12
51	277	37	14	168	13
52	244	38	14	175	13
53	259	37	14	168	13
54	239	35	14	168	12
55	252	37	14	171	12
56	255	39	13	163	13
57	258	38

Day	Payment Initiation (Dedicated)	Account information (Dedicated)	Funds check (Dedicated)	Payment Initiation (Mobile)	Account information (Mobile)
1	203	25	14	163	10
2	199	25	14	174	10
3	204	25	14	181	10
4	188	27	17	185	10
5	174	27	14	162	10
6	164	29	14	155	10
7	173	27	14	143	10
8	174	27	15	139	11
9	176	27	14	148	11
10	160	27	15	153	10
11	146	26	17	151	11
12	148	30	16	155	11
13	157	28	14	153	11
14	164	28	14	146	11
15	155	27	14	139	11
16	162	28	15	150	12
17	158	61	14	152	22
18	169	29	15	154	12
19	182	29	15	156	12
20	205	29	15	163	12
21	223	30	14	157	13
22	204	28	15	152	12
23	213	30	15	160	13
24	195	29	14	161	14
25	188	28	14	162	12
26	200	29	14	158	13
27	208	31	16	165	13
28	223	29	14	153	13
29	225	28	14	151	13
30	191	30	14	163	13
31	188	32	14	167	24
32	237	32	14	189	11
33	276	31	20	220	11
34	231	31	14	177	11
35	233	30	15	166	11
36	226	31	14	153	11
37	232	32	14	169	11
38	96	30	14	167	11
39	167	30	14	170	11
40	195	31	14	165	11
41	252	32	14	169	11
42	249	33	14	163	11
43	266	36	14	155	11
44	274	36	14	167	12
45	276	37	20	187	12
46	261	37	15	165	12
47	265	36	16	167	12
48	261	36	14	169	12
49	243	36	13	160	12
50	246	34	13	154	12
51	277	37	14	168	13
52	244	38	14	175	13
53	259	37	14	168	13
54	239	35	14	168	12
55	252	37	14	171	12
56	255	39	13	163	13
57	258	38