What we maintain
OpenCore maintains five integrations: Local, E2B, Daytona, Vercel Sandbox and Upstash Box. Local is powered by AgentOS under the hood. The unified API covers files, commands, processes, ports, capabilities, errors, cleanup and typed native access.
Continuous compatibility testing
Contract tests run on every change. Credential-gated live tests exercise real provider infrastructure on a schedule, record package versions and timestamps, and feed the public matrix. Partners provide test credentials or credits so coverage stays current.
Why OpenCore
OpenCore builds developer infrastructure, including Email SDK. That work informs the same standards here: small APIs, typed provider boundaries, executable documentation and honest runtime limitations.
Founding Adapter Partner — $150/month
Continuous live testing, maintainer-owned adapter maintenance, dedicated provider documentation, priority compatibility fixes, reviewed badge after review, founding placement, release inclusion, referral tracking where practical, and credential/credit coordination.
Featured Founding Partner — $250/month
Everything above, plus labeled homepage sponsor placement, a dedicated integration example, launch collaboration, a priority communication channel, changelog visibility and measurable referral links where practical.
The line we do not cross
Sponsorship cannot buy better results, hidden limitations, automatic recommendations, competitor suppression or misleading comparisons. Paying providers are not ranked above non-sponsors.
Talk with us
Email hello@opencore.dev with your provider SDK owner, testing credentials or credits, review contact and preferred tier.