FinTech APIs vs. AI Agents: 45 Financial Providers Ranked (2026)

Financial APIs handle the most valuable data on the web. We audited 45 finance and fintech API providers — from market data to payments — to see which ones are truly ready for AI agents.

Sites Audited

Average Score

48/100

Top Performer

apilayer.com

How does your finance & fintech apis compare?

#	Site	Score	Grade	Discovery	Data Quality	Actionability
	apilayer.com	90	A	98	91	74
2	twelvedata.com	89	A	100	93	58
3	abstractapi.com	86	A	95	89	64
4	plaid.com	86	A	94	94	52
5	razorpay.com	81	B+	93	87	47
6	site.financialmodelingprep.com	80	B+	88	89	47
7	alpaca.markets	78	B+	81	91	47
8	mercadopago.com.br	78	B+	78	93	47
9	boleto.cloud	77	B+	80	90	47
10	polygon.io	76	B+	70	93	52
11	marketstack.com	75	B+	77	87	47
12	portfoliooptimizer.io	72	B	80	80	42
13	billplz.com	71	B	76	82	38
14	zoho.com	70	B	68	75	62
15	dashboard.nbshare.io	67	B	48	93	52
16	fred.stlouisfed.org	55	C+	36	79	43
17	econdb.com	54	C	45	73	32
18	docs.klarna.com	48	C	59	34	52
19	docs.moov.io	44	D	44	39	52
20	mono.co	42	D	44	38	47
21	labs.ig.com	39	D	43	41	27
22	intrinio.com	39	D	39	39	38
23	stockdata.org	37	D	39	33	39
24	binlist.net	36	D	38	34	36
25	sandbox.developerhub.citi.com	36	D	34	35	44
26	finnhub.io	36	D	34	40	32
27	fiscaldata.treasury.gov	35	D	30	41	33
28	finage.co.uk	35	D	38	27	47
29	frontaccounting.com	33	D	25	31	52
30	sec.gov	33	D	22	38	43
31	hotstoks.com	33	D	34	32	32
32	aletheiaapi.com	32	D	30	33	36
33	smartapi.angelbroking.com	32	D	24	37	36
34	openfigi.com	30	D	20	34	43
35	alphavantage.co	29	F	18	37	33
36	developer.tradier.com	28	F	24	30	32
37	mfapi.in	26	F	18	33	27
38	api.youneedabudget.com	25	F	14	31	37
39	styvio.com	8	F	8	0	24
40	developers.bb.com.br	8	F	8	0	24
41	iexcloud.io	8	F	8	0	24
42	nordigen.com	8	F	8	0	24
43	yahoofinanceapi.com	8	F	8	0	24

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