YC AI visibility / Summer 2021

Most AI-visible companies in YC Summer 2021

We scored 160 active B2B and fintech companies from Y Combinator's Summer 2021 batch on how easily ChatGPT, Perplexity, Claude and AI agents can find, understand and use them. Rootly leads with 100/100. Data from our crawl on October 18, 2026; scores are a homepage snapshot, not live.

Summer 2021 average score

All-YC average (even)

57%

of this batch have no llms.txt (all YC: 55%)

#	Company	Score	Crawlers	Content	Schema	Agents
1	Rootly rootly.com	100	100	100	100	100
2	HitPay hitpayapp.com	98	100	94	100	100
2	Slash slash.com	98	95	100	100	100
4	Anakin anakin.io	97	95	94	100	100
4	Nash usenash.com	97	95	94	100	100
4	Pluggy pluggy.ai	97	95	94	100	100
7	AI Tech Packs aitechpacks.com	96	100	100	100	83
7	Dailybot dailybot.com	96	92	94	100	100
7	Matidor.com matidor.com	96	100	100	100	83
7	Noloco noloco.io	96	95	91	100	100
11	ContraForce contraforce.com	95	95	100	100	83
11	Customily customily.com	95	95	100	100	83
11	GetDot getdot.ai	95	95	87	100	100
11	Sully sully.ai	95	95	89	100	100
11	Superwall superwall.com	95	95	100	100	83
16	Aleph getaleph.com	94	95	94	100	88
16	Coinrule coinrule.com	94	95	85	100	100
16	Lago getlago.com	94	89	93	100	100
16	Tiriel AI tiriel.ai	94	100	100	100	74
20	Atlas atlas.kitchen	93	95	94	100	83
20	Burodeingresos burodeingresos.com	93	100	94	88	83
20	Formance formance.com	93	95	94	100	83
20	Hyperbrowser hyperbrowser.ai	93	92	100	100	83
20	Sitenna sitenna.com	93	100	100	100	71
20	Stardex stardex.com	93	95	81	100	100
20	Synder synder.com	93	95	94	100	83
20	Whalesync whalesync.com	93	95	94	100	83
20	Zazos zazos.com	93	95	94	100	83
29	Aviator aviator.co	92	92	94	100	83
29	Awesomic awesomic.com	92	92	94	100	83
29	marketfeed marketfeed.com	92	95	100	100	74
29	Protex AI protex.ai	92	95	100	100	71
33	Advantage Club advantageclub.co	91	95	96	100	74
33	Hudson-labs hudson-labs.com	91	95	94	100	74
33	Mejorcdt mejorcdt.com	91	95	94	100	74
36	CoLoop coloop.ai	90	95	100	100	64
36	Konta.com konta.com	90	95	91	100	74
36	Meticulous meticulous.ai	90	100	89	100	71
36	Openlayer openlayer.com	90	95	85	100	83
40	Epsilon3 epsilon3.io	89	95	81	100	83
40	Karbon Card karboncard.com	89	95	91	100	71
42	Cumbuca cumbuca.com	88	95	94	100	62
42	Swipe getswipe.in	88	94	87	100	74
42	testRigor testrigor.com	88	100	100	100	47
45	Cloudanix cloudanix.com	87	95	89	100	64
45	Malloc Inc mallocprivacy.com	87	95	93	100	62
45	Secoda secoda.co	87	92	94	67	83
45	Verihubs verihubs.com	87	95	76	100	83
49	Affogato AI affogato.ai	86	100	100	100	38
49	Baubap baubap.com	86	95	78	100	74
49	Dots 💸 usedots.com	86	95	100	100	47
49	MindFi mindfi.co	86	100	94	100	47
53	Contalink contalink.com	85	95	85	100	62
53	Kodex kodexglobal.com	85	92	94	100	52
53	Plai plai.io	85	95	94	100	47
53	Truss trusspayments.com	85	95	94	100	47
57	Geostar geostar.ai	84	95	100	20	83
57	Jestor jestor.com	84	100	83	20	100
59	Cabal getcabal.com	83	89	61	100	90
59	Double doublehq.com	83	95	94	88	47
59	Miniloop miniloop.ai	83	95	100	88	38
59	Repool repool.com	83	89	94	100	47
59	SalaryBox salarybox.in	83	95	89	100	47
59	Tavus tavus.io	83	92	87	20	100
59	Vinco vincoed.com	83	89	85	100	62
66	Archbee archbee.com	82	95	94	20	83
66	Bree trybree.com	82	95	91	88	47
66	Confido confidotech.com	82	95	94	20	83
66	Floatpays Inc floatpays.com	82	95	94	100	35
66	idemeum idemeum.com	82	95	94	20	83
66	OneSchema oneschema.co	82	95	94	20	83
66	Replo replo.app	82	95	94	20	83
73	Ahazou ahazou.com	81	95	98	100	26
73	Baraka getbaraka.com	81	100	85	100	35
73	Mergent mergent.co	81	95	81	100	47
73	Pipekit pipekit.io	81	100	91	67	47
73	Telmai telm.ai	81	95	91	100	35
78	Abhi abhi.com.pk	80	89	74	100	62
78	ARQ arqfinance.com	80	95	87	100	35
78	Encuadrado encuadrado.com	80	95	85	100	38
78	Freterium freterium.com	80	95	100	88	26
78	Koshex koshex.com	80	95	96	20	71
83	Cartpanda cartpanda.com	79	95	74	100	47
83	Flow Club flow.club	79	95	85	20	83
83	Forage joinforage.com	79	92	89	20	83
83	Hypercore hypercore.ai	79	92	94	100	26
83	Kaya usekaya.com	79	92	87	100	38
83	Mach9 mach9.ai	79	95	91	100	26
89	Artillery artillery.io	78	85	94	20	83
89	Monto monto.mx	78	95	87	100	26
89	Nomod nomod.com	78	95	94	88	26
92	Brite britebenefits.com	76	92	91	55	47
92	Hirebolt hirebolt.com	76	95	81	100	26
94	Blixo blixo.com	75	95	85	20	64
94	Datlo datlo.com	75	95	84	8	74
94	Malga malga.io	75	95	100	20	47
94	MarqVision marqvision.com	75	95	100	20	47
98	Evidence evidence.dev	74	95	94	20	47
98	InstaKin instakin.com	74	80	93	100	26
98	Varos varos.com	74	95	51	88	62
101	Bite Ninja biteninja.com	73	95	59	67	62
101	Cococart cococart.co	73	95	93	20	47
101	StrideQ strideq.com	73	92	94	55	26
104	Chipax chipax.com	72	95	94	20	38
104	Coast trycoast.com	72	95	94	8	47
104	Genuity gogenuity.com	72	95	89	20	47
104	Whaly whaly.io	72	95	94	8	47
108	Evidently AI evidentlyai.com	71	95	94	20	35
108	Lightly lightly.ai	71	95	93	20	35
108	Tenyks tenyks.ai	71	95	85	20	47
111	Female Invest femaleinvest.com	70	92	85	20	47
111	PaletteHQ palettehq.com	70	95	94	8	38
113	Infiuss Health infiuss.com	69	95	96	20	26
113	Slope slopepay.com	69	87	87	20	47
113	Therify therify.co	69	95	85	20	38
113	Vibe Kanban vibekanban.com	69	80	94	20	47
113	Waterplan waterplan.com	69	95	85	8	47
118	At at.cafe	68	91	79	20	47
118	Deskimo deskimo.com	68	92	87	20	35
118	hotglue hotglue.com	68	95	76	20	47
118	lapzo lapzo.com	68	95	91	20	26
118	LemFi lemfi.com	68	91	89	20	35
123	Infina infina.vn	67	95	66	67	26
124	Endla endla.com	66	100	83	8	26
124	Onebrief onebrief.com	66	95	81	8	35
124	Payflow payflow.es	66	92	79	20	35
124	Potion potion.ai	66	95	81	8	38
128	Aqua investwithaqua.com	65	92	76	20	38
128	JABU gojabu.com	65	95	44	100	26
128	Pide Directo pidedirecto.mx	65	95	70	20	38
128	Union54 union54.com	65	80	83	20	47
132	Infer infer.so	64	85	81	20	38
132	Portao3 portao3.com.br	64	95	78	20	26
134	Beau beau.to	63	89	76	8	38
134	Birdie getbirdie.io	63	85	83	8	38
134	Enso ensoanalytics.com	63	89	62	20	47
134	Palla palla.com	63	80	81	8	47
134	Shape shape.xyz	63	95	74	20	26
134	ShipBlu shipblu.com	63	100	59	20	38
140	FrontPage front.page	62	85	67	20	47
141	Pylon pylonump.com	61	80	81	8	38
141	WarpBuild warpbuild.com	61	95	45	8	62
143	AlgoViral algoviral.com	60	95	31	88	26
144	Aleph Solutions (Alephee) alephee.com	59	85	71	8	38
144	Pideaky pideaky.com	59	85	78	8	26
144	Toku trytoku.com	59	95	38	8	62
147	Abstra abstra.io	57	95	31	8	62
148	Coulomb AI coulomb.ai	53	85	57	8	26
149	Float float.xyz	52	100	8	8	62
150	MobileBoost mobileboost.io	51	100	34	8	26
151	Levro levro.com	49	95	31	8	26
151	Rivia.AI rivia.ai	49	89	38	8	26
151	Suplias suplias.com	49	80	51	8	26
154	ODWEN odwen.co.in	45	80	34	8	26
155	Amenli amenli.com	44	95	14	8	26
156	Cero cero.ai	43	89	19	8	26
156	RGI Labs rgilabs.com	43	85	23	8	26
158	SalaryBook salarybook.co.in	41	80	22	8	26
159	Sequin sequinai.com	39	80	14	8	26
160	Monet monet.com.co	32	67	8	8	26

Sub-scores: Crawlers = AI crawler access, Content = answer-engine content, Schema = structured data, Agents = agent readiness (llms.txt, API/MCP). Ties share a rank.

YC Summer 2021 vs all of YC

Area	Summer 2021	All YC
Overall score	77	77
AI crawler access	93	93
Answer-engine content	82	82
Structured data	60	62
Agent readiness	57	56

Most common gaps in YC Summer 2021

No discoverable API or MCP for agents87% (all YC: 87%)

No question & answer content73% (all YC: 71%)

No llms.txt57% (all YC: 55%)

No product / organization schema49% (all YC: 46%)

No JSON-LD structured data at all45% (all YC: 43%)

No docs / help content linked42% (all YC: 46%)

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Other YC batches

All YC companies Fall 2026 Summer 2026 Spring 2026 Winter 2026 Fall 2025 Summer 2025 Spring 2025 Winter 2025 Fall 2024 Summer 2024 Winter 2024 Summer 2023 Winter 2023 Summer 2022 Winter 2022 Winter 2021 Summer 2020 Winter 2020 Summer 2019 Winter 2019 Summer 2018 Winter 2018 Summer 2017 Winter 2017 Summer 2016 Winter 2016 Summer 2015 Winter 2015 Summer 2014 Winter 2014 Summer 2013 Winter 2013 Summer 2012 Winter 2012 Summer 2011 Winter 2011

Methodology: how the YC dataset was built. Batch labels come from Y Combinator's public directory; RankRoot is not affiliated with Y Combinator.