specification: API Commons Plans specificationVersion: '0.1' schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans provider: Vessel providerId: vessel created: '2026-05-04' method: searched modified: '2026-08-13' reconciled: true tags: - Unified API - Integrations - CRM - HRIS - SaaS description: Vessel offers a unified API for SaaS integrations. The public pricing page lists three tiers - Start (free, 5 development connections), Launch (custom-priced, up to 20 connections), and Custom (custom-priced, unlimited connections, whitelabeling). All tiers advertise unlimited API calls; commercial pricing for Launch and Custom is negotiated directly. sources: - https://www.vessel.dev/pricing plans: - id: vessel-start name: Start type: freemium description: Free development tier with 5 connections; intended for evaluation and prototyping. entries: - label: Plan price name: plan_price type: subscription metric: month limit: 1 timeFrame: month geo: global unit: 1 price: $0 userMultiplied: false - label: Development connections name: dev_connections type: quota metric: connection limit: 5 timeFrame: usage geo: global unit: 1 price: $0 userMultiplied: false - label: API calls name: api_calls type: quota metric: request limit: -1 timeFrame: month geo: global unit: 1 price: $0 userMultiplied: false elements: - name: Unified APIs - name: Action APIs - name: Unlimited API calls - id: vessel-launch name: Launch type: subscription description: Production tier with up to 20 connections, custom-priced for the customer's business. entries: - label: Plan price name: plan_price type: subscription metric: month limit: 1 timeFrame: month geo: global unit: 1 price: customized for your business userMultiplied: false - label: Maximum connections name: max_connections type: quota metric: connection limit: 20 timeFrame: usage geo: global unit: 1 price: included userMultiplied: false - label: API calls name: api_calls type: quota metric: request limit: -1 timeFrame: month geo: global unit: 1 price: included userMultiplied: false elements: - name: Unified APIs - name: Action APIs - name: Email support - name: Unlimited API calls - id: vessel-custom name: Custom type: enterprise description: Custom-priced tier with unlimited connections, whitelabeling, and Slack support. entries: - label: Plan price name: plan_price type: subscription metric: month limit: 1 timeFrame: month geo: global unit: 1 price: customized for your business userMultiplied: false - label: Connections name: connections type: quota metric: connection limit: -1 timeFrame: usage geo: global unit: 1 price: included userMultiplied: false elements: - name: Whitelabeling - name: Unified APIs - name: Action APIs - name: Slack support - name: Prioritized feature requests and integrations maintainers: - FN: Kin Lane email: kin@apievangelist.com plan_count: 3 x-verification: checked: '2026-08-13' url: https://www.vessel.dev/pricing http_status: 200 verbatim_tiers: - 'Start — Free per month — Unified APIs, Action APIs, Unlimited API calls, Free development connections: 5' - 'Launch — Customized for your business — Unified APIs, Action APIs, Email support, Unlimited API calls, Max number of connections: 20' - Custom — Customized for your business — Whitelabeling, Unified APIs, Action APIs, Slack support, Prioritized feature requests and integrations, Unlimited number of connections note: The pricing page was re-fetched on 2026-08-13 and the three tiers match this artifact exactly, so the method is upgraded from generated to searched. Only the Start tier carries a numeric price; Launch and Custom are quoted. The "Start for free" and "Log in" buttons on the page both point at https://app.vessel.dev, which did not answer on the same date, so the free tier is not currently self-serve reachable.