First Round Capital
First Round Capital is a seed-stage venture capital firm founded in 2004 by Josh Kopelman and Howard Morgan, headquartered in San Francisco with offices in New York and Philadelphia. First Round invests almost exclusively at the earliest stages of company creation, typically writing lead checks in the $750K to $4M range, and partners (many of them former founders) work side-by-side with companies through their first few years. The firm is a generalist that seeks contrarian insight into how markets work, with concentration in enterprise software, AI, fintech, healthcare, hardware, and consumer. Since founding it has backed 500+ startups and was the first institutional investor in Uber; its portfolio includes Notion, Roblox, Square, Looker, Upstart, Verkada, Warby Parker, Flatiron Health, and Clay. First Round also runs The Review, a widely read operator-focused editorial publication, and self-reports roughly $2.5B in assets under management.
First Round Capital has 25 portfolio companies tracked on the APIs.io network, of which 25 (100%) publish APIs indexed here.
Its highest-rated API providers on the network are Stedi, Fal, Notion, Reducto, Uber.
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.
Developing 8 Usable, with meaningful gaps to close
Thin 3 Limited public surface area
Emerging 4 Early or largely undocumented
Minimal 5 Almost no public developer surface
Unrated 1 Not yet scored
Properties
Portfolio
Where the firm publishes its investments
Firm
The firm itself
Cohort brief
Auto-generatedThe 24 portfolio companies with APIs in the catalog, backed by First Round Capital, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Operational Transparency | 30.3 | 11.3 | +19 | 24 |
| Contract Quality | 34.2 | 17.5 | +16.7 | 24 |
| Developer Ergonomics | 33.4 | 17.9 | +15.5 | 24 |
| Access Clarity | 32.5 | 22.3 | +10.2 | 24 |
| Discoverability | 70.4 | 60.4 | +10 | 24 |
| Contract Governance | 13.4 | 6.4 | +7 | 24 |
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.
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 38% | 16% | +22 |
| MCP server (first-party) | 21% | 7% | +14 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 17% | 9% | +8 |
| Security | 100% | 88% | +12 |
| Arazzo workflows | 17% | 2% | +15 |
| Governance rules | 38% | 13% | +25 |
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.
- 1 Stedi 85.6
- 2 fal 69.7
- 3 Notion 66.9
- 4 Rillet 49.4
- 5 Reducto 49.1
- 6 Verkada 49
- 7 Uber 48.7
- 8 SingleStore 44.9
- 9 Clover Health 44.6
- 10 Ring 43.7
Source (apis.yml)
Work with this as data
Every firm here is available over the APIs.io API and to AI agents over MCP.