Accelerator

Techstars

Techstars is a global pre-seed startup accelerator and investor founded in 2006 by David Cohen, Brad Feld, David Brown, and Jared Polis in Boulder, Colorado, and headquartered in New York City. Operating a worldwide network of mentorship-driven accelerator programs across cities including Boulder, Boston, Chicago, New York, London, and Tokyo, Techstars runs an intensive three-month program that provides each accepted company roughly $220,000 in capital — a $20,000 convertible equity agreement for a minimum 5% of common stock plus an optional $200,000 uncapped MFN post-money SAFE (Asia-Pacific programs at ~$100,000). The firm is largely sector-agnostic but is especially active in AI/ML, fintech, SaaS, developer tools, healthcare, climate, space and defense, and critical infrastructure, and operates on its signature "Give First" philosophy. Techstars has backed more than 10,000 founders, producing dozens of unicorns and notable companies including Twilio, SendGrid, DigitalOcean, Uber, Remitly, Chainalysis, ClassPass, DataRobot, and PillPack, with portfolio companies collectively raising tens of billions in follow-on capital.

973 portfolio companies 972 publish APIs here 20 properties
Venture CapitalAcceleratorPre-SeedSeedDeveloper ToolsFintechArtificial IntelligenceSoftware-as-a-ServiceHealthcareClimateSpace & DefenseGlobalNorth America
Portfolio Strength across 266 profiled portfolio companies on the network
29 top-rated API companies 7 exemplar · 22 strong
86 agent-ready companies 10 agent-native · 76 agent-ready
Average quality of the book:
Composite thin 37.8
Agent-Readiness agent-aware 23.2

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.

Techstars has 973 portfolio companies tracked on the APIs.io network, of which 266 (27%) publish APIs indexed here. The remaining 706 are tracked as profiles without a published API on the network.

Its highest-rated API providers on the network are Losant, Sendgrid, Twilio, Outreach, StopLight.

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 7 Complete, well-documented, and agent-ready
Strong 22 Solid coverage with minor gaps
Developing 93 Usable, with meaningful gaps to close
Cobalt1 API54.0Kard2 APIs53.9Safello2 APIs53.6Bluecore3 APIs53.5TypingDNA3 APIs53.4Skilljar1 API52.9App Samurai3 APIs52.8Artera2 APIs52.8Circuit2 APIs52.8Mavrck2 APIs52.8IronCore Labs1 API52.6Bevz2 APIs52.5Stream6 APIs52.5tread.io1 API52.2LinqAlpha1 API52.0AltScore3 APIs51.8DNSFilter1 API51.4Frame Payments1 API51.4MadKudu2 APIs51.2Vitally9 APIs51.2Keen IO3 APIs51.0PlayCanvas1 API50.9Upward Financial1 API50.8Cloudability7 APIs50.7RentCheck1 API50.7CrowdTwist2 APIs50.4LendAPI1 API50.4Bifrost4 APIs50.2Sendbird1 API50.2HackMD1 API50.1Bokio2 APIs49.9Shieldpay1 API49.8Edvisor.io1 API49.7LeO1 API49.7Nixtla1 API49.6Deliverart1 API49.5Uber6 APIs49.5Jebbit1 API49.4HILOS1 API48.9Gamesight2 APIs48.7Synack9 APIs48.5Cast Corporation2 APIs48.1Cariqa1 API47.5Blockade Games1 API47.3Estated1 API47.2Localytics2 APIs47.1Suggestic1 API47.0Help Scout25 APIs46.7Lightstream3 APIs46.5Parabol1 API46.4Denim1 API46.3TPS Engage1 API46.1GoSpotCheck1 API46.0Cutover1 API45.9Sigma Ratings1 API45.8Let's Enhance1 API45.7Laminar3 APIs45.3Makeswift1 API44.8LogicGate1 API44.7Sheeva1 API44.6Giftbit1 API43.8SegmentStream1 API43.7Rasa2 APIs43.5Broadlume1 API43.3Qovery1 API43.2Indico Data1 API43.1ENSO1 API42.9Oper Credits4 APIs42.9TermScout2 APIs42.9Kayhan Space1 API42.5Embeddable1 API42.4Hacware1 API42.3Precog3 APIs42.2Metrobi1 API42.1Base Operations1 API41.8echo3D1 API41.7Cachet3 APIs41.0Kapost1 API41.0Voyc1 API41.0Door2 APIs40.9Tradeverifyd2 APIs40.8VidGrid1 API40.7Twelve Labs1 API40.6CometChat1 API40.5Bitfinder1 API40.4UrbanFox1 API40.2FitBark1 API39.9Kadence1 API39.9Slope Software1 API39.9flowpay.io2 APIs39.8Howler1 API39.8Apptentive1 API39.5CareAcademy1 API39.4
Thin 88 Limited public surface area
Chainalysis12 APIs39.2Hydrosat1 API38.9Arena1 API38.8MealMe1 API38.8Ninox1 API38.8Rainbird Technologies1 API38.7Wunderite1 API38.7Ravelin Technology2 APIs38.5Seldon3 APIs38.5Gorgias1 API38.3Origin1 API38.2Haekka1 API37.8Preply1 API37.8Voyager Portal1 API37.8Pixxel1 API37.6StoryTap1 API37.6voiceitt1 API37.6Liquid1 API37.5ATOM2 APIs37.3Spocket2 APIs37.2Coconut1 API37.0Muse Finance1 API37.0SmartMind1 API36.9TicTacTrip1 API36.9TrojAI1 API36.9Ambassador1 API36.7Ambee1 API36.5Inthegame1 API36.5Cubbit1 API36.3Rad.1 API36.3Covatic2 APIs36.1Datarobot1 API36.0Funnel Leasing2 APIs36.0Revvo1 API36.0Invendor2 APIs35.9Resourcly1 API35.8PlayerData1 API35.7Dfns1 API35.3LiveLike1 API35.2Balance1 API35.1SkyWatch1 API34.9BYBE1 API34.6Cuvva1 API34.6Tive1 API34.4Lifebit Biotech1 API34.2StreetMetrics2 APIs34.0Knit1 API33.7Memgraph1 API33.5Urban Sky1 API33.5LayUp Technologies1 API32.7Fincura1 API32.2Upsie8 APIs32.0Jumpcloud1 API31.8FlyteDesk1 API31.3Curated for You1 API31.2SPiN5 APIs31.1Tenfold1 API30.8Airspace Link1 API30.7AppSheet1 API30.6Ellipsis Drive1 API30.6Lightning Social Ventures1 API30.5QuanTemplate1 API30.3backstitch1 API30.2Evrim1 API30.2Tradingview2 APIs30.2Trellis Research1 API30.1Cloverleaf AI1 API29.8Resultid1 API29.7Fideo Intelligence1 API29.3LunarCrush2 APIs29.2Prediko1 API29.2Driver1 API29.1Lingvist1 API29.1Popp1 API29.0Shyft1 API28.9Unruly Studios1 API28.8Getro1 API28.7Mainstay1 API28.5Onward Delivery1 API28.4Taizen1 API28.2Lingco Language Labs1 API27.9Zego1 API27.9Wakeo1 API27.6TheMonetizr1 API27.3Tenzo1 API27.1OneScreen AI1 API26.6Seel9 APIs26.6Novo1 API26.3
Emerging 51 Early or largely undocumented
Minimal 5 Almost no public developer surface

Rest of Portfolio

1 further portfolio companies that don’t yet have a provider page on the network.

Digitalocean

Scroll for all 1

Properties

Portfolio

Where the firm publishes its investments

Team

Partners and investing staff

Content

Blog, podcast, newsletter, and research

Firm

The firm itself

Other

Everything else declared in apis.yml

Cohort brief

Auto-generated

The 892 portfolio companies with APIs in the catalog, backed by Techstars, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
892
of 972 on the roster
Mean Kin Score
19
-5.4 vs catalog 24.4
Mean Agent Readiness
7.7
-5.0 vs catalog 12.7
Spread
1.5–80.4
median 12.8 · σ 15.5
How the 892 split by band
Exemplar 7Strong 22Developing 94Thin 101Emerging 313Minimal 355
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 25.5 27.2 -1.7 892
Contract Governance 3.8 6.6 -2.8 892
Discoverability 57.9 61.5 -3.6 892
Developer Ergonomics 18.3 23.8 -5.5 892
Operational Transparency 8.2 14.4 -6.2 892
Contract Quality 11.1 20.4 -9.3 892

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) 10% 11% -1
MCP server (first-party) 12% 13% -1
Agent Skills 0% 0% 0
OAuth scopes 8% 12% -4
Security 99% 96% +3
Arazzo workflows 2% 2% 0
Governance rules 3% 13% -10

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 Losant 80.4
  2. 2 SendGrid 80
  3. 3 Twilio 77.8
  4. 4 Outreach 73.2
  5. 5 Stoplight 69
  6. 6 Healthie 68.2
  7. 7 Massive (formerly Polygon.io) 67.2
  8. 8 Cledara 65.9
  9. 9 Narmi 63.9
  10. 10 Pandium 63.7
Top by Agent Readiness
  1. 1 Massive (formerly Polygon.io) 63.1
  2. 2 Losant 62.3
  3. 3 Qovery 57.9
  4. 4 Intelligems 55.2
  5. 5 Vitally 55.2
  6. 6 LinqAlpha 54.5
  7. 7 Outreach 54.4
  8. 8 Bluecore 54.1
  9. 9 Cledara 52.5
  10. 10 Planable 52
This roster declares 972 members; 964 resolve to a provider in the catalog and 892 carry a score (93%). The figures above describe the scored members only.Generated from the catalog build of 22 September 2026, across 27674 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: techstars
name: Techstars
description: >-
  Techstars is a global pre-seed startup accelerator and investor founded in 2006 by David Cohen, Brad
  Feld, David Brown, and Jared Polis in Boulder, Colorado, and headquartered in New York City. Operating a
  worldwide network of mentorship-driven accelerator programs across cities including Boulder, Boston,
  Chicago, New York, London, and Tokyo, Techstars runs an intensive three-month program that provides each
  accepted company roughly $220,000 in capital — a $20,000 convertible equity agreement for a minimum 5%
  of common stock plus an optional $200,000 uncapped MFN post-money SAFE (Asia-Pacific programs at
  ~$100,000). The firm is largely sector-agnostic but is especially active in AI/ML, fintech, SaaS,
  developer tools, healthcare, climate, space and defense, and critical infrastructure, and operates on its
  signature "Give First" philosophy. Techstars has backed more than 10,000 founders, producing dozens of
  unicorns and notable companies including Twilio, SendGrid, DigitalOcean, Uber, Remitly, Chainalysis,
  ClassPass, DataRobot, and PillPack, with portfolio companies collectively raising tens of billions in
  follow-on 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://www.techstars.com/favicon.ico
x-type: venture-capital
x-category: Accelerator
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.23'
tags:
  - Venture Capital
  - Accelerator
  - Pre-Seed
  - Seed
  - Developer Tools
  - Fintech
  - Artificial Intelligence
  - Software-as-a-Service
  - Healthcare
  - Climate
  - Space & Defense
  - Global
  - North America
tags_raw:
  - Venture Capital
  - Accelerator
  - Pre-Seed
  - Seed
  - Developer Tools
  - Fintech
  - Artificial Intelligence
  - SaaS
  - Healthcare
  - Climate
  - Space & Defense
  - Global
  - North America
apis: []
common:
  - type: About
    url: https://www.techstars.com/about
  - type: SignUp
    url: https://apply.techstars.com/
  - type: HelpCenter
    url: https://help.techstars.com/support/home
  - type: TermsOfService
    url: https://www.techstars.com/terms-of-use
  - type: PrivacyPolicy
    url: https://www.techstars.com/privacy-policy
  - type: DomainSecurity
    url: security/techstars-domain-security.yml
  - type: Website
    url: https://www.techstars.com/
  - type: Portfolio
    url: https://www.techstars.com/portfolio
  - type: Portfolio
    url: portfolio/techstars-portfolio.yml
  - type: Team
    url: https://www.techstars.com/leadership-team
  - type: Team
    url: team/techstars-team.yml
  - type: InvestmentThesis
    url: https://www.techstars.com/about
  - type: Pitch
    url: https://apply.techstars.com/
  - type: Blog
    url: https://www.techstars.com/blog
  - type: News
    url: https://www.techstars.com/newsroom
  - type: Newsletter
    url: https://accelerate.techstars.com/en/techstars-newsletter-subscribe
  - type: Jobs
    url: https://www.techstars.com/careers
  - type: Contact
    url: https://www.techstars.com/contact
  - type: LinkedIn
    url: https://www.linkedin.com/company/techstars/
  - type: Twitter
    url: https://twitter.com/techstars
  - type: Features
    data:
      - "Stage: Pre-Seed, Seed (accelerator) with selective follow-on"
      - "Typical check: ~$220,000 ($20,000 CEA for min 5% common stock + $200,000 uncapped MFN post-money SAFE; ~$100,000 in Asia-Pacific programs)"
      - "Program: 3-month mentorship-driven accelerator, no participation fee"
      - "Sectors: Sector-agnostic; active in AI/ML, fintech, SaaS, developer tools, healthcare, climate, space & defense, critical infrastructure"
      - "Geography: Global network of accelerators (Boulder, Boston, Chicago, New York, London, Tokyo, and more)"
      - "Portfolio: 10,000+ founders backed; ~973 companies captured from the public portfolio page"
      - "Founded: 2006"
      - "HQ: New York City, USA (originated Boulder, Colorado)"
    sources:
      - https://www.techstars.com/about
      - https://www.techstars.com/newsroom/investment-terms
      - https://www.techstars.com/portfolio
    updated: '2026-07-17'
maintainers:
  - FN: Kin Lane
    email: info@apievangelist.com
    url: https://apievangelist.com
  - FN: APIs.json
    url: http://apisjson.org
  - FN: Techstars
    url: https://www.techstars.com/

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