Tools
Every way to use Priors from outside the site: from your own agent, from a terminal, or over plain HTTP. You can add a benchmark of your own and take the data out. Reading needs no account.
Agent skill
One file you give to Claude Code, Codex or any agent that reads skill files. It teaches the agent how to pull data out of Priors, how to add a benchmark to your page and how to edit the page when you ask. It is short, and fetches the detail for a task only when it needs it.
MCP server
A hosted server at https://mypriors.com/mcp with 35 tools: rank models under any index, read a benchmark, compare, chart. Nothing to install. Reading is public, and the tools that change your page ask for your agent token.
claude mcp add --transport http priors https://mypriors.com/mcp
CLI
The same tools in a terminal. One file, no dependencies, Node 18 or newer.
curl -fsSL https://mypriors.com/install.sh | sh
priors rank --top 10 priors model "opus 5.5"
Import a benchmark
Add a benchmark Priors does not have and weight it like any other. Signed in, it joins your page; without an account it stays in this browser. Paste the results as JSON on the import page, have your agent produce the file with the skill, or run priors import mybench.json.
Export data
Every chart has an export button: PNG or SVG for the picture, CSV or JSON for the numbers behind it. The data itself is open as JSON: the catalog of benchmarks and models, and the whole dataset behind the charts (about 18 MB) for today or any day since September 5, 2026. Any CLI command prints JSON with --json.
curl -s https://mypriors.com/api/benchmarks # every benchmark and model curl -s --compressed https://mypriors.com/api/snapshot -o snapshot.json curl -s --compressed "https://mypriors.com/api/snapshot?date=2026-11-01"
priors bench terminal-bench-4 --json > terminal-bench-4.json priors rank --top 50 --json > ranking.json
Changing your page needs a token
Reading is open to everyone. For the skill, the MCP server or the CLI to change your own page, mint an agent token on the page: Edit page, Agent access, Mint token. How the token works