Venture Capital

Menlo Ventures

Menlo Ventures is an early-stage venture capital firm founded in 1976 and headquartered in Menlo Park and San Francisco, California, that invests in transformative technology companies across the full early lifecycle. Its strategy spans "the Three Stages of Early" — Inception (validating early ideas, including via the Inception Fund and the Anthology Fund AI accelerator built with Anthropic), Venture (Series A/B), and Inflection (early growth). Menlo invests across artificial intelligence, bio and healthcare, consumer, cybersecurity, defense, fintech, infrastructure, robotics and hardware, SaaS, and supply chain and automation, primarily in North America. Over roughly five decades the firm reports backing companies that produced 85+ public companies and 170+ mergers and acquisitions, with a portfolio that includes Anthropic, Uber, Roku, Chime, Carta, Benchling, Pinecone, Netlify, and Warby Parker. In 2026 Menlo announced $3 billion in fresh capital, the largest raise in the firm's history, and reports $7.6B+ in assets under management. Its ethos is "when we invest, we're invested" — active, hands-on support beyond capital.

215 portfolio companies 215 publish APIs here 12 properties
Venture CapitalEarly StageSeries AArtificial IntelligenceFintechCybersecurityInfrastructureHealthcareSoftware-as-a-ServiceNorth America
The Menlo Ventures API Portfolio cover
API Evangelist Portfolio Report
The Menlo Ventures API Portfolio

Every Menlo Ventures company that ships an API, scored the way a machine reads it — and why a fund that backed the author of the agentic protocol has barely shipped it in its own book.

Read the report $750.00 · every API-bearing company in the book, scored on the Kin Score
Portfolio Strength across 210 profiled portfolio companies on the network
12 top-rated API companies 2 exemplar · 10 strong
27 agent-ready companies 2 agent-native · 25 agent-ready
Average quality of the book:
Composite emerging 23.4
Agent-Readiness human-only 10.2

Firms are ranked by cumulative portfolio strength — how many highly-rated API companies they've backed, weighted by tier across composite quality and agent-readiness. The averages below are a secondary read on the typical company in the book.

Menlo Ventures has 215 portfolio companies tracked on the APIs.io network, of which 215 (100%) publish APIs indexed here.

Its highest-rated API providers on the network are Anthropic, Benchling, Particle Health, H1, Graphite.

Portfolio on the Network

Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.

Exemplar 2 Complete, well-documented, and agent-ready
Strong 10 Solid coverage with minor gaps
Developing 44 Usable, with meaningful gaps to close
Thin 23 Limited public surface area
Emerging 61 Early or largely undocumented
Minimal 70 Almost no public developer surface
Unrated 5 Not yet scored

Properties

Portfolio

Where the firm publishes its investments

Team

Partners and investing staff

Content

Blog, podcast, newsletter, and research

Firm

The firm itself

Cohort brief

Auto-generated

The 210 portfolio companies with APIs in the catalog, backed by Menlo Ventures, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
210
of 215 on the roster
Mean Kin Score
22.8
+2.1 vs catalog 20.7
Mean Agent Readiness
9.9
+0.2 vs catalog 9.7
Spread
1.2–68.6
median 15 · σ 17.6
How the 210 split by band
Exemplar 2Strong 11Developing 39Thin 23Emerging 62Minimal 73
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 28.2 22.3 +5.9 210
Operational Transparency 13.7 11.3 +2.4 210
Developer Ergonomics 19.4 17.9 +1.5 210
Discoverability 61.6 60.4 +1.2 210
Contract Quality 18 17.5 +0.5 210
Contract Governance 6.4 6.4 0 210

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 16% 16% 0
MCP server (first-party) 7% 7% 0
Agent Skills 0% 0% 0
OAuth scopes 8% 9% -1
Security 93% 88% +5
Arazzo workflows 1% 2% -1
Governance rules 17% 13% +4

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Anthropic 68.6
  2. 2 Benchling 67.8
  3. 3 Particle Health 64.4
  4. 4 Ribbon Health 64.2
  5. 5 Slash 63.7
  6. 6 Graphite 61.3
  7. 7 Endgame 60.1
  8. 8 Fieldwire 59.1
  9. 9 Codesignal 55.6
  10. 10 Prime Intellect 55.1
Top by Agent Readiness
  1. 1 Endgame 56.8
  2. 2 NationGraph 53
  3. 3 Typeface 50
  4. 4 Slash 47.2
  5. 5 Nectar Social 47
  6. 6 Codesignal 43.1
  7. 7 Benchling 39.6
  8. 8 Anthropic 38.1
  9. 9 BitPay 34.1
  10. 10 Particle Health 34
This roster declares 215 members; 210 resolve to a provider in the catalog and 210 carry a score (100%). The figures above describe the scored members only.Generated from the catalog build of 25 August 2026, across 26891 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Source (apis.yml)

apis.yml Raw ↑
aid: menlo-ventures
name: Menlo Ventures
description: >-
  Menlo Ventures is an early-stage venture capital firm founded in 1976 and
  headquartered in Menlo Park and San Francisco, California, that invests in
  transformative technology companies across the full early lifecycle. Its
  strategy spans "the Three Stages of Early" — Inception (validating early ideas,
  including via the Inception Fund and the Anthology Fund AI accelerator built
  with Anthropic), Venture (Series A/B), and Inflection (early growth). Menlo
  invests across artificial intelligence, bio and healthcare, consumer,
  cybersecurity, defense, fintech, infrastructure, robotics and hardware, SaaS,
  and supply chain and automation, primarily in North America. Over roughly five
  decades the firm reports backing companies that produced 85+ public companies
  and 170+ mergers and acquisitions, with a portfolio that includes Anthropic,
  Uber, Roku, Chime, Carta, Benchling, Pinecone, Netlify, and Warby Parker. In
  2026 Menlo announced $3 billion in fresh capital, the largest raise in the
  firm's history, and reports $7.6B+ in assets under management. Its ethos is
  "when we invest, we're invested" — active, hands-on support beyond capital.
x-type: venture-capital
x-category: Venture Capital
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://menlovc.com/wp-content/uploads/menlo-logo.png
tags:
  - Venture Capital
  - Early Stage
  - Series A
  - Artificial Intelligence
  - Fintech
  - Cybersecurity
  - Infrastructure
  - Healthcare
  - Software-as-a-Service
  - North America
tags_raw:
  - Venture Capital
  - Early Stage
  - Series A
  - Artificial Intelligence
  - Fintech
  - Cybersecurity
  - Infrastructure
  - Healthcare
  - SaaS
  - North America
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.23'
apis: []
common:
  - type: Website
    url: https://menlovc.com/
  - type: Portfolio
    url: https://menlovc.com/portfolio/
  - type: Portfolio
    url: portfolio/menlo-ventures-portfolio.yml
  - type: Team
    url: https://menlovc.com/team/
  - type: Team
    url: team/menlo-ventures-team.yml
  - type: InvestmentThesis
    url: https://menlovc.com/about/
  - type: Blog
    url: https://menlovc.com/perspective/
  - type: Contact
    url: https://menlovc.com/contact/
  - type: Jobs
    url: https://menlovc.com/careers/
  - type: Crunchbase
    url: https://www.crunchbase.com/organization/menlo-ventures
  - type: LinkedIn
    url: https://www.linkedin.com/company/menlo-ventures
  - type: Twitter
    url: https://twitter.com/MenloVentures
  - type: Features
    data:
      - 'Stage: Early stage — Inception, Venture (Series A/B), Inflection (early growth)'
      - 'Sectors: AI, bio + healthcare, consumer, cybersecurity, defense, fintech, infrastructure, robotics + hardware, SaaS, supply chain + automation'
      - 'Geography: North America'
      - 'AUM: $7.6B+ (self-reported)'
      - 'New capital: $3B raised in 2026 (largest in firm history)'
      - 'Track record: 85+ public companies, 170+ mergers & acquisitions (self-reported)'
      - 'Founded: 1976'
      - 'HQ: Menlo Park & San Francisco, California'
      - 'Programs: Inception Fund, Anthology Fund (AI accelerator with Anthropic)'
    sources:
      - https://menlovc.com/
      - https://menlovc.com/about/
    updated: '2026-07-17'
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com
    url: https://apievangelist.com
  - FN: APIs.json
    url: http://apisjson.org
  - FN: Menlo Ventures
    url: https://menlovc.com/

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