The Sequoia Capital API Portfolio

About this paper

I read Sequoia Capital’s portfolio the way a machine reads it — not the memo, the evidence. But I owe you the sentence that governs every number in this report before any other: this is not a broad harvest of Sequoia’s book, it is a curated winners’ slice. I resolved 118 Sequoia companies into my catalog and deepened a 19-company core outward to 72 that ship a public API I could pull, parse, and score on the same rubric I apply to Stripe. That set is quality-biased by construction, concentrated in proven late-stage infrastructure, and a fraction of Sequoia’s real book. So when this report says Sequoia leads the series, understand it leads a hand-picked slice of winners, not a random draw — and I will not let you forget it.

With that caveat load-bearing, the finding is real: these 72 companies post the highest mean composite Kin Score of any fund I have scored — 55.4 — and the highest exemplar count, eleven, led by Stripe at 84.5. Where a16z’s governance facet was a pit and Y Combinator’s a crater, Sequoia’s slice averages 59.8 on governance with only nine of fifty-two upper-band providers at a flat zero. And here is the tell that makes it worth the read: the same slice that leads on governance and contract quality trails the entire series on frontier agent-readiness — just 35% agent-native, below a16z and YC both, with idempotency at 6% and examples at 13%. Sequoia holds the governed estate, retrofitting the machine layer; the report reads that split company by company, keeps Sequoia honestly out of the apples-to-apples benchmark, and poses the one question its LPs should be asking — whether the data-infrastructure crown jewels convert their deep governed surfaces into hosted agent access before the app layer laps them.

What's inside

1. Executive summary — a curated winners' slice, and the caveat that governs it
2. The firm, and the book — 72 API-bearing companies deepened from a 19-company core
3. Portfolio decomposition — a late-stage infrastructure book
4. The composite Kin Score of the book — and the governance reversal
5. Agent-readiness of the portfolio — the estate is retrofitting the machine layer
6. The peer-fund benchmark — and why Sequoia is not in the head-to-head
7. The crown jewels — provider-by-provider on the eleven exemplars
8. Standards and the agentic turn — the hard half done, the cheap half skipped
9. Security, auth, scopes, and compliance posture across the book
10. The data-infrastructure question — skills versus hosted MCP — and the whitespace
11. The investable thesis — for Sequoia, and for everyone reading it

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