Tenjin

NewThe tool router for coding agents

The right tool, the moment your agent needs it.

Paste into Claude Code

Install Tenjin from tenjin.sh

Install once and keep working. No API keys, no MCP servers, no rules to write.

Your agent stops saying I can’t.

claude — ~/work/app
›Add a soft whoosh when the hero breaks into petals.
⏺without Tenjin I can’t generate audio. You could sign up for ElevenLabs and add an API key.
天Tenjin: ElevenLabs makes sound effects, no account needed. 5.35¢
⏺ElevenLabs · “soft airy whoosh, plum petals scattering in the wind” · 1.5 s
♪
Saved to public/sfx and played once as the petals scatter.

Giving your agent a new tool is a chore.

  1. Sign up and paste an API key for every tool.
  2. Install MCP servers that crowd every session’s context.
  3. Write rules so your agent remembers them.
  4. Set all of that up for a tool you needed once.

Tenjin handles all of it.

A shelf of tools, paid by the use.

Tenjin keeps a curated set of tools maintained and ready. Some are free. The rest cost your agent a few cents when it uses them, and nothing when it doesn’t.

Your agent needs

Next.js 16 caching docs, current version

  • 53 morefrom 0.1¢The Tenjin catalog Images, voice, video, research, filings and more

Your agent pays each provider’s own price per call from a wallet on your machine, over x402. By default it spends up to 25¢ a call and $5 a day on its own, and anything over that waits for you. tenjin config changes either limit.

Set it up once. Then forget about it.

Paste into Claude Code

Install Tenjin from tenjin.sh

Works with Claude Code · GitHub · Talk to the founders

Card art: Utagawa Hiroshige, Plum Garden at Kameido, from One Hundred Famous Views of Edo, 1857. The Art Institute of Chicago, Clarence Buckingham Collection, 1925.3752. Public domain.