Join
Sign in with GitHub or Google. Your Tessen account is your developer identity, and Alpha access comes with it.
Get started freeTHE ZERO POOL
IS COMING.
MORE DEVELOPERS. MORE NODES. MORE INTELLIGENCE.
Free code intelligence for developers, served from the Tessen network’s shared Zero Pool. Use it in OpenCode as tessen/project-zero — no card, no bill, never a paid fallback.
- PriceFree · Developer Alpha
- WhereOpenCode
- Modeltessen/project-zero
- BillingNo paid fallback
WHY IT IS
FREE.
MORE DEVELOPERS.
MORE NODES.
MORE INTELLIGENCE.
MORE NODES.
MORE INTELLIGENCE.
Project Zero is Tessen’s developer program. It runs only on capacity Tessen has verified costs nothing to serve, so it never bills you and never falls back to paid capacity. When that capacity is unavailable, a request is refused with a reason instead.
The Zero Pool is a shared allocation that resets daily. Every signed-in developer is enrolled automatically, and tessen zero shows your access. When the day’s pool is used, requests are refused until the reset — never billed.
A CLEAR
WAY IN.
Authenticate
Your Tessen account is your developer identity. The CLI signs in with device authorization: approve a short code in your browser, never paste a key.
Identity guideBuild
Connect OpenCode with one command, then select tessen/project-zero.
OpenCode setupContribute with Node
Explore optional machine participation with Tessen Node. Eligibility and contribution accounting depend on the live program.
Explore NodeSTART IN
YOUR TERMINAL.
Sign in
Use your Tessen account — Google, email, or GitHub where it is offered. Your developer identity is your Tessen identity; there is no separate developer account.
Install the Tessen CLI
One command. It verifies the download's checksum and installs into its own folder — no sudo. Requires Node.js 20 or newer, on macOS, Linux or WSL.
curl -fsSL https://github.com/TessenLab/zero/releases/latest/download/install.sh | shAuthorize this machine
The CLI shows a short code and opens the Tessen approval page in your browser. Approve it while signed in; the CLI receives a credential bound to your identity. You never paste a key.
tessen auth:loginCheck your access
Shows whether your account has Project Zero access and when today's window resets.
tessen zeroConnect OpenCode
Adds the Tessen provider to OpenCode and hands OpenCode the credential from the previous step. The configuration file never contains a secret.
tessen opencodeBuild
Run OpenCode on Project Zero by selecting tessen/project-zero.
opencode --model tessen/project-zero