SV Angel
SV Angel is a San Francisco-based venture capital firm founded in 2009 by Ron Conway, one of Silicon Valley's most prolific angel investors. The firm runs two vehicles: an early-stage Seed Fund that writes roughly $200k checks into pre-seed and seed rounds, and a later-stage Growth Fund that invests at Series B and beyond. SV Angel is a founder-first, high-conviction investor that deliberately does not lead rounds, takes no board seats, and writes smaller checks as part of a larger syndicate so it can act as a neutral "routing layer" and advocate for founders. It is famous for its "Inflection Point Approach" — showing up at critical moments around fundraising, M&A, and business development. The firm invests almost entirely in US-based, software-driven companies across consumer and enterprise, and its portfolio has produced dozens of unicorns and landmark outcomes including Google, Airbnb, Coinbase, Stripe, Slack, Instacart, DoorDash, Reddit, Pinterest, GitHub, Databricks, Anthropic, and OpenAI.
SV Angel has 141 portfolio companies tracked on the APIs.io network, of which 140 (99%) publish APIs indexed here.
Its highest-rated API providers on the network are Stripe, io, Anthropic, Twilio, Method.
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 9 Complete, well-documented, and agent-ready
Strong 15 Solid coverage with minor gaps
Developing 24 Usable, with meaningful gaps to close
Thin 33 Limited public surface area
Emerging 26 Early or largely undocumented
Minimal 29 Almost no public developer surface
Unrated 4 Not yet scored
Rest of Portfolio
1 further portfolio companies that don’t yet have a provider page on the network.
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Properties
Portfolio
Where the firm publishes its investments
Firm
The firm itself
Cohort brief
Auto-generatedThe 136 portfolio companies with APIs in the catalog, backed by SV Angel, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 35.3 | 17.5 | +17.8 | 136 |
| Operational Transparency | 22.8 | 11.3 | +11.5 | 136 |
| Access Clarity | 33.2 | 22.3 | +10.9 | 136 |
| Developer Ergonomics | 28.4 | 17.9 | +10.5 | 136 |
| Contract Governance | 10.1 | 6.4 | +3.7 | 136 |
| Discoverability | 63.5 | 60.4 | +3.1 | 136 |
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) | 24% | 16% | +8 |
| MCP server (first-party) | 11% | 7% | +4 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 13% | 9% | +4 |
| Security | 99% | 88% | +11 |
| Arazzo workflows | 13% | 2% | +11 |
| Governance rules | 34% | 13% | +21 |
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.
Source (apis.yml)
Work with this as data
Every firm here is available over the APIs.io API and to AI agents over MCP.