Amplify Partners
Amplify Partners is an early-stage venture capital firm founded in 2012 and headquartered in Menlo Park, California, with a second office in San Francisco. Amplify positions itself as "the first investor for technical founders" — engineers, researchers, and scientists who have felt a problem viscerally and are compelled to spend a decade solving it. The firm invests primarily at the seed and Series A stages, with check sizes generally ranging from roughly $1M to $10M (often around $3M at seed), and continues to back companies through growth and IPO. Its thesis concentrates on deep technical categories: developer tools and computing infrastructure, machine learning and artificial intelligence, data and analytics, cybersecurity, and digital biology. In June 2025 Amplify announced roughly $900M in new capital across three vehicles — Fund 6, Fund 6 Select, and Amplify Bio. Notable portfolio companies include Datadog, Fastly, dbt Labs, Temporal, Chainguard, LangChain, Runway, and Recursion.
Amplify Partners has 114 portfolio companies tracked on the APIs.io network, of which 113 (99%) publish APIs indexed here.
Its highest-rated API providers on the network are Hightouch, Manifold, Bayes, Dagster, Fastly.
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 1 Complete, well-documented, and agent-ready
Strong 10 Solid coverage with minor gaps
Developing 25 Usable, with meaningful gaps to close
Thin 22 Limited public surface area
Emerging 26 Early or largely undocumented
Minimal 27 Almost no public developer surface
Unrated 2 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 111 portfolio companies with APIs in the catalog, backed by Amplify Partners, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 30.2 | 17.9 | +12.3 | 111 |
| Contract Quality | 26.8 | 17.5 | +9.3 | 111 |
| Operational Transparency | 17.9 | 11.3 | +6.6 | 111 |
| Access Clarity | 27.9 | 22.3 | +5.6 | 111 |
| Discoverability | 64.5 | 60.4 | +4.1 | 111 |
| Contract Governance | 8.6 | 6.4 | +2.2 | 111 |
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) | 29% | 16% | +13 |
| MCP server (first-party) | 9% | 7% | +2 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 4% | 9% | -5 |
| Security | 95% | 88% | +7 |
| Arazzo workflows | 8% | 2% | +6 |
| Governance rules | 19% | 13% | +6 |
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 Hightouch 70.6
- 2 Airtable 62.1
- 3 Dagster 62.1
- 4 Replicated 62
- 5 Fastly 60.8
- 6 Temporal 59.5
- 7 Databricks 59.1
- 8 Allium 58.3
- 9 Unblocked 57.9
- 10 Hex 53.7
- 1 Hightouch 61.2
- 2 Archera 51.3
- 3 Anchorage Digital 47.5
- 4 Allium 41.3
- 5 Unblocked 40.3
- 6 Databricks 40.1
- 7 Hex 37.6
- 8 Prisma 36.8
- 9 LangChain 31.7
- 10 Airtable 30.8
Source (apis.yml)
Work with this as data
Every firm here is available over the APIs.io API and to AI agents over MCP.