VC Portfolios (a16z, Battery Ventures, Sequoia Capital, Index Ventures participation)
Participation register market (venture firm portfolio listings). The Kin Score Market layer reads each provider in its market: who it integrates with, how deep those integrations go, and where the market publishes its own structure. Methodology.
Where this market publishes its structure
- a16z portfolio (a16z.com/portfolio/, page's own data-companies JSON) machine-readable, 876 companies, all with a website; 580 providers linked; 23 held (17 on a16z.com placeholder, 6 platform hosts)
- Battery Ventures companies (battery.com/company/ + admin-ajax loadbatterycompanieswithFilter, public, no nonce) machine-readable, 356 companies, 343 with a website on the company page; 247 linked. battery.com/our-companies/ 301 -> home, /companies/ 404
- Sequoia Capital companies (sequoiacap.com/companies/
via sitemap.xml) machine-readable, 432 company pages, 416 with a website; 288 linked. /our-companies/ server HTML carries only 21 featured cards (Framer). The site republished mid-crawl and served shell pages; those were re-fetched - Index Ventures companies (indexventures.com/companies/ + JSON-LD on each company page) machine-readable, 330 companies, all with a url; 279 linked; seedcamp held (investor)
Own = declares at least one integration itself; covered = visible only because an aggregator, standards body, regulator or partner contract names it; distribution-only = listed only on cloud marketplaces it sells through, a channel reported beside, never counted as its own declared integrations; undeclared = nothing we can read, so no number; declares_compatibility = providers with a `compatible` shape vote, report only (kin, 2026-10-13): never counted as own, never in depth or position.
Taxonomy how this market maps onto apis.io
Derived 2026-10-23 from the 75 providers in this market we could resolve in the catalog. The percentage is the share of those providers carrying each one; it describes the market, not the tag or industry. Tag groups have no page of their own yet, so they are listed unlinked.
| Tag groups | MCP 24% |
|---|---|
| Industries | Artificial Intelligence 29% |
| Capabilities | Cybersecurity Management 27% |
share of resolved cohort carrying it; tags >=0.20 & >=3 members (max 12, junk dropped), tag_groups >=0.20 (cooccurrence, non-cross-cutting; max 8), industries >=0.20 (max 6), areas >=0.10 (max 6; areas are keyword-matched and sparse), capabilities L1 >=0.20 (max 8); derive-market-taxonomy.py
Leaders by position (provisional)
Provisional: grouped by position, depth compared within a position only. Distribution (cloud marketplaces) and iPaaS bridges are counted beside position, never inside it. Unknown-builder listings are left out of position shares and counted here.
gravity 10 · other companies invest to build on it
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Okta | 71.0 | 8420 | 1746 / 6674 | 6639 | 4 | 36 | partner-built 21%, unknown 78% |
| Stripe | 70.6 | 959 | 819 / 140 | 0 | 11 | 37 | partner-built 89%, provider-built 2%, ipaas-bridge 4%, contract 2%, standard 1%, builds-on-platform 1%, distribution 1% |
| Adyen | 60.6 | 106 | 44 / 62 | 0 | 9 | 3 | partner-built 59%, provider-built 12%, ipaas-bridge 3%, contract 10%, standard 6%, builds-on-platform 2%, distribution 8% |
| HubSpot | 59.9 | 438 | 342 / 96 | 0 | 6 | 37 | partner-built 78%, provider-built 8%, ipaas-bridge 8%, contract 2%, covered 1%, builds-on-platform 1%, distribution 1% |
| Kong | 56.2 | 39 | 11 / 28 | 0 | 0 | 0 | partner-built 41%, standard 37%, builds-on-platform 22% |
| ThousandEyes | 55.8 | 16 | 6 / 10 | 0 | 2 | 0 | partner-built 41%, standard 29%, builds-on-platform 18%, distribution 12% |
| Plaid | 52.9 | 59 | 0 / 59 | 0 | 6 | 2 | partner-built 72%, ipaas-bridge 3%, contract 5%, standard 8%, builds-on-platform 2%, distribution 10% |
| Doordash | 51.8 | 28 | 22 / 6 | 0 | 2 | 0 | partner-built 79%, standard 7%, covered 4%, builds-on-platform 4%, distribution 7% |
| Netlify | 51.8 | 139 | 97 / 42 | 6 | 4 | 5 | partner-built 70%, provider-built 13%, ipaas-bridge 4%, standard 2%, builds-on-platform 4%, distribution 3%, unknown 4% |
| Squarespace | 24.4 | 35 | 2 / 33 | 0 | 0 | 30 | partner-built 6%, ipaas-bridge 88%, contract 3%, standard 3% |
builds-on 11 · publishes apps on other platforms' stores
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Harness | 54.3 | 23 | 0 / 23 | 0 | 4 | 2 | ipaas-bridge 9%, standard 26%, builds-on-platform 48%, distribution 17% |
| Confluent | 53.7 | 16 | 0 / 16 | 0 | 4 | 1 | ipaas-bridge 6%, standard 31%, builds-on-platform 38%, distribution 25% |
| Clickup | 53.4 | 56 | 0 / 56 | 1 | 0 | 37 | ipaas-bridge 69%, contract 2%, standard 4%, covered 4%, builds-on-platform 20%, unknown 2% |
| Statsig | 52.4 | 23 | 0 / 23 | 0 | 7 | 2 | ipaas-bridge 9%, standard 4%, covered 13%, builds-on-platform 43%, distribution 30% |
| Asana | 51.8 | 25 | 0 / 25 | 1 | 2 | 7 | ipaas-bridge 28%, standard 20%, covered 4%, builds-on-platform 36%, distribution 8%, unknown 4% |
| Postman | 51.8 | 35 | 0 / 35 | 0 | 0 | 12 | ipaas-bridge 43%, standard 18%, builds-on-platform 39% |
| 6sense | 50.1 | 10 | 0 / 10 | 0 | 1 | 0 | standard 40%, builds-on-platform 50%, distribution 10% |
| Gainsight | 49.7 | 46 | 0 / 46 | 0 | 3 | 35 | ipaas-bridge 74%, standard 2%, covered 2%, builds-on-platform 15%, distribution 6% |
| Vidyard | 47.6 | 10 | 0 / 10 | 0 | 1 | 1 | ipaas-bridge 10%, standard 30%, builds-on-platform 50%, distribution 10% |
| Parallel | 42.8 | 7 | 0 / 7 | 0 | 1 | 1 | ipaas-bridge 14%, standard 29%, builds-on-platform 43%, distribution 14% |
| Svix | 40.2 | 15 | 0 / 15 | 0 | 9 | 2 | ipaas-bridge 12%, standard 12%, builds-on-platform 19%, distribution 56% |
coverage 1 · reaches banks, carriers, systems or channels (an aggregator)
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| n8n | 51.8 | 243 | 87 / 156 | 1 | 3 | 2 | partner-built 36%, ipaas-bridge 1%, coverage 59%, builds-on-platform 2%, distribution 1% |
covered 2 · reached mainly through aggregators
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Iterable | 49.2 | 46 | 0 / 46 | 0 | 4 | 35 | ipaas-bridge 74%, standard 2%, covered 9%, builds-on-platform 6%, distribution 9% |
| Unify | 37.1 | 6 | 0 / 6 | 0 | 2 | 1 | ipaas-bridge 17%, standard 17%, covered 33%, distribution 33% |
regulated 1 · named in a regulator's register or partners' contracts
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Revolut | 61.7 | 22 | 0 / 22 | 0 | 2 | 2 | provider-built 12%, ipaas-bridge 8%, contract 46%, standard 12%, covered 8%, builds-on-platform 4%, distribution 8% |
standard 17 · listed by a voluntary standard's own directory
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Avalara | 53.7 | 26 | 0 / 26 | 0 | 6 | 1 | ipaas-bridge 7%, standard 27%, builds-on-platform 27%, distribution 40% |
| Fireblocks | 50.3 | 8 | 0 / 8 | 0 | 1 | 0 | contract 25%, standard 62%, distribution 12% |
| Cockroach Labs | 47.2 | 8 | 0 / 8 | 0 | 2 | 0 | standard 62%, builds-on-platform 12%, distribution 25% |
| Instacart | 47.1 | 5 | 0 / 5 | 0 | 1 | 0 | standard 60%, builds-on-platform 20%, distribution 20% |
| Cresta | 44.1 | 3 | 0 / 3 | 0 | 1 | 0 | standard 67%, distribution 33% |
| Graphiant | 41.9 | 7 | 0 / 7 | 0 | 3 | 0 | standard 29%, builds-on-platform 29%, distribution 43% |
| Lightfield | 36.4 | 3 | 0 / 3 | 0 | 2 | 0 | standard 33%, distribution 67% |
| Outbrain | 35.5 | 8 | 0 / 8 | 0 | 2 | 2 | ipaas-bridge 25%, standard 50%, distribution 25% |
| Leadspace | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | standard 50%, builds-on-platform 50% |
| Lido | 34.5 thin | 2 | 0 / 2 | 0 | 0 | 0 | standard 50%, builds-on-platform 50% |
| SafetyCulture | 29.6 | 6 | 0 / 6 | 0 | 0 | 3 | ipaas-bridge 50%, standard 33%, builds-on-platform 17% |
| Method Financial | 26.8 thin | 2 | 0 / 2 | 0 | 1 | 0 | standard 50%, distribution 50% |
| California Forever | 17.2 thin | 1 | 0 / 1 | 0 | 0 | 0 | standard 100% |
| Createra | 17.2 thin | 1 | 0 / 1 | 0 | 0 | 0 | standard 100% |
| Everyone Medicines | 17.2 thin | 1 | 0 / 1 | 0 | 0 | 0 | standard 100% |
| Ollin Bio | 17.2 thin | 1 | 0 / 1 | 0 | 0 | 0 | standard 100% |
| Voldex | 17.2 thin | 1 | 0 / 1 | 0 | 0 | 0 | standard 100% |
core 4 · builds the connectors its customers need
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Palo Alto Networks | 71.7 | 1162 | 232 / 930 | 206 | 0 | 0 | partner-built 22%, provider-built 60%, standard 1%, builds-on-platform 1%, unknown 16% |
| Datadog | 61.6 | 647 | 162 / 485 | 47 | 3 | 35 | partner-built 24%, provider-built 58%, ipaas-bridge 5%, standard 1%, builds-on-platform 3%, unknown 7% |
| Dwolla | 33.7 | 12 | 0 / 12 | 0 | 4 | 1 | provider-built 42%, ipaas-bridge 8%, contract 8%, standard 8%, distribution 33% |
| Moov | 28.9 | 8 | 0 / 8 | 0 | 3 | 0 | provider-built 38%, contract 12%, standard 12%, distribution 38% |
mixed 10 · no single mode dominates
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Klarna | 60.2 | 34 | 0 / 34 | 0 | 2 | 3 | partner-built 18%, provider-built 6%, own-page 26%, ipaas-bridge 9%, contract 15%, standard 9%, builds-on-platform 12%, distribution 6% |
| MongoDB | 58.0 | 28 | 0 / 28 | 0 | 3 | 5 | ipaas-bridge 18%, contract 7%, standard 25%, covered 11%, builds-on-platform 29%, distribution 11% |
| ClickHouse | 55.9 | 21 | 0 / 21 | 0 | 5 | 2 | ipaas-bridge 10%, standard 29%, covered 14%, builds-on-platform 24%, distribution 24% |
| OpenAI | 55.6 | 73 | 0 / 73 | 1 | 6 | 35 | ipaas-bridge 49%, contract 4%, standard 10%, covered 17%, builds-on-platform 10%, distribution 8%, unknown 1% |
| Cohesity | 54.9 | 19 | 0 / 19 | 0 | 8 | 0 | contract 4%, standard 30%, builds-on-platform 30%, distribution 35% |
| Anthropic | 54.2 | 31 | 0 / 31 | 1 | 10 | 2 | ipaas-bridge 6%, contract 10%, standard 16%, covered 16%, builds-on-platform 16%, distribution 32%, unknown 3% |
| ElevenLabs | 53.0 | 25 | 0 / 25 | 1 | 4 | 3 | ipaas-bridge 12%, contract 4%, standard 19%, covered 23%, builds-on-platform 23%, distribution 15%, unknown 4% |
| Braze | 51.7 | 18 | 0 / 18 | 0 | 7 | 3 | ipaas-bridge 16%, standard 11%, covered 21%, builds-on-platform 16%, distribution 37% |
| BigPanda | 51.4 | 11 | 0 / 11 | 0 | 2 | 0 | contract 9%, standard 36%, builds-on-platform 36%, distribution 18% |
| Clerk | 33.2 | 6 | 0 / 6 | 0 | 0 | 2 | ipaas-bridge 33%, standard 17%, covered 17%, builds-on-platform 33% |
list 1 · a long list on its own page, mostly unevidenced
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| Optimizely | 52.8 | 358 | 0 / 358 | 0 | 6 | 2 | own-page 93%, ipaas-bridge 1%, standard 1%, covered 1%, builds-on-platform 4%, distribution 2% |
undeclared 18 · declares nothing we can read: no number
| Provider | Depth | Integrations | In / out | Unknown builder | Distribution | iPaaS bridge | Mix |
|---|---|---|---|---|---|---|---|
| A-Frame | undeclared | - | - | - | - | - | |
| Avicenna Biosciences | undeclared | - | - | - | - | - | |
| Berry Health | undeclared | - | - | - | - | - | |
| Crater Studios | undeclared | - | - | - | - | - | |
| HumanCo | undeclared | - | - | - | - | - | |
| Ideal Power Converters | undeclared | - | - | - | - | - | |
| Intellilake | undeclared | - | - | - | - | - | |
| Latent Space | undeclared | - | - | - | - | - | |
| Lettuce | undeclared | - | - | - | - | - | |
| liangyihui | undeclared | - | - | - | - | - | |
| Oasis Health Partners | undeclared | - | - | - | - | - | |
| Overture | undeclared | - | - | - | - | - | |
| Rocketable | undeclared | - | - | - | - | - | |
| Tass Vision | undeclared | - | - | - | - | - | |
| Unigrid | undeclared | - | - | - | - | - | |
| VacayHero | undeclared | - | - | - | - | - | |
| Weeby | undeclared | - | - | - | - | - | |
| Zag Bio | undeclared | - | - | - | - | - |
Top workflows by market votes
Workflows (Arazzo) and their phrasing are generated by API Evangelist, ranked by market votes (integration edges in the graph, weighted by channel).
In-market workflows only: a step on the market provider's side maps to this market's business capabilities (), and the partner is not a generic export/notify app. Other workflows are counted as bridges (including any whose steps do not resolve to a capability yet). Methodology. In-market: 103; bridges: 0.
| Workflow | Between | Votes | Weighted | Arazzo |
|---|---|---|---|---|
| Add new HubSpot contacts to Mailchimp Add new HubSpot contacts to Mailchimp |
HubSpot ↔ Mailchimp | 6 | 3.0 | workflow generated by API Evangelist |
| Add new HubSpot contacts to Mailchimp lists Add new HubSpot contacts to Mailchimp lists |
HubSpot ↔ Mailchimp | 6 | 3.0 | workflow generated by API Evangelist |
| Create or update HubSpot contacts from new Mailchimp subscribers Create or update HubSpot contacts from new Mailchimp subscribers |
HubSpot ↔ Mailchimp | 6 | 3.0 | workflow generated by API Evangelist |
| Sync new HubSpot contacts into a Mailchimp audience Create a HubSpot contact, then subscribe the same person to a Mailchimp audience list with merge fields carried across. |
HubSpot ↔ Mailchimp | 6 | 3.0 | workflow generated by API Evangelist |
| Bi-directional contact sync with Salesforce Query a contact in Salesforce with SOQL and mirror it into the HubSpot CRM, keeping two systems of record aligned. |
HubSpot ↔ Salesforce | 2 | 2.0 | workflow generated by API Evangelist |
| Sync Stripe customers into HubSpot contacts Create a customer in Stripe, then sync that payment customer into HubSpot as a CRM contact for revenue reporting. |
HubSpot ↔ Stripe | 2 | 2.0 | workflow generated by API Evangelist |
| Push Stripe successful charges as HubSpot deals When a Stripe charge succeeds, look up the matching HubSpot Contact and create a Closed Won HubSpot Deal with the charge amount and currency. |
Stripe ↔ HubSpot | 2 | 2.0 | workflow generated by API Evangelist |
| Sync Stripe customers into Salesforce contacts When a Stripe customer is created, look them up by email and create the matching Salesforce Contact with billing details. |
Stripe ↔ Salesforce | 2 | 2.0 | workflow generated by API Evangelist |
| Replace WooCommerce Stripe plugin with declarative integration List WooCommerce store orders and create a matching Stripe payment intent for a selected order's total and currency. |
Stripe ↔ WooCommerce | 2 | 1.9 | workflow generated by API Evangelist |
| Commercetools |
Adyen ↔ commercetools | 3 | 1.8 | workflow generated by API Evangelist |
| commercetools Discover how the Adyen payments integration for commercetools can optimize your ecommerce conversions |
Adyen ↔ commercetools | 3 | 1.8 | workflow generated by API Evangelist |
| Plaid |
Dwolla ↔ Plaid | 3 | 1.8 | workflow generated by API Evangelist |
| plaid |
Dwolla ↔ Plaid | 3 | 1.8 | workflow generated by API Evangelist |
| Get Slack notifications for new Stripe sales Get Slack notifications for new Stripe sales |
Stripe ↔ Slack | 3 | 1.8 | workflow generated by API Evangelist |
| Post Stripe payment alerts to Slack channels Retrieve a Stripe charge and post a payment alert to a designated Slack channel. |
Stripe ↔ Slack | 3 | 1.8 | workflow generated by API Evangelist |
Generated 2026-10-24 from API Evangelist's own files; nothing on this page is a model's judgement. Provisional and unweighted; not part of the Kin Score composite or agent readiness. Read the Market layer methodology. Disagree with an edge? Every edge cites its evidence and can be corrected through the normal correction path.