Gradient Ventures
Gradient Ventures is Google's AI-focused early-stage venture fund, describing itself as "the seed fund designed for founders in AI" and leading investments at the earliest stages of innovation. It announced a $220M Fund 5. Its public portfolio spans 134 companies across AI infrastructure and developer tools (Lambda, CentML, Streamlit, Mastra, Nango, Infisical, Astro, Payload), applied AI (Writer, Krea, Stack AI), fintech (Moov, Fragment, Unit21) and health, with dozens of exits including acquisitions by Snowflake, OpenAI, Notion and DataRobot.
Gradient Ventures has 134 portfolio companies tracked on the APIs.io network, of which 80 (60%) publish APIs indexed here. The remaining 47 are tracked as profiles without a published API on the network.
Its highest-rated API providers on the network are Moov, Clarify, Sapling, Chili Piper, Spade.
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 5 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 20 Usable, with meaningful gaps to close
Thin 30 Limited public surface area
Emerging 17 Early or largely undocumented
Rest of Portfolio
7 further portfolio companies that don’t yet have a provider page on the network.
Scroll for all 7
Properties
Firm
The firm itself
Cohort brief
Auto-generatedThe 69 portfolio companies with APIs in the catalog, backed by Gradient Ventures, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Access Clarity | 36.8 | 26.5 | +10.3 | 69 |
| Operational Transparency | 21.9 | 13.2 | +8.7 | 69 |
| Contract Quality | 25.4 | 17.7 | +7.7 | 69 |
| Developer Ergonomics | 29.9 | 23.8 | +6.1 | 69 |
| Discoverability | 61.7 | 58 | +3.7 | 69 |
| Contract Governance | 6.3 | 7 | -0.7 | 69 |
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) | 23% | 15% | +8 |
| MCP server (first-party) | 22% | 13% | +9 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 13% | 12% | +1 |
| Security | 100% | 98% | +2 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 16% | 18% | -2 |
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 Moov
- 2 Clarify
- 3 Sapling
- 4 Chili Piper
- 5 Spade
- 6 Conduit
- 7 Secureframe
- 8 Toku
- 9 Vijil
- 10 PopSQL
- 1 Moov {"score" => 63.4, "band" => "agent-native"}
- 2 Anvil {"score" => 57.9, "band" => "agent-ready"}
- 3 Chili Piper {"score" => 56.3, "band" => "agent-ready"}
- 4 Anchor Browser {"score" => 56.1, "band" => "agent-ready"}
- 5 Krea {"score" => 56.1, "band" => "agent-ready"}
- 6 Vera Health {"score" => 51.2, "band" => "agent-ready"}
- 7 Sapling {"score" => 51, "band" => "agent-ready"}
- 8 OlaClick {"score" => 50.9, "band" => "agent-native"}
- 9 Clarify {"score" => 47.7, "band" => "agent-ready"}
- 10 Toku {"score" => 44.7, "band" => "agent-native"}
Coverage caveat. 60 of 69 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 2 November 2026, across 37080 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)
Work with this as data
Every firm here is available over the APIs.io API and to AI agents over MCP.