For Claude Code, Cursor, Codex, opencode, Pi and Hermes. One install, every agent.
Jevlin pushes the Pareto frontier on agent search. The best single engine puts the answer page in the top 10 for 58% of 485 developer questions; the Jevlin fan-out reaches 62%, and no engine at any price gets there alone.
02 / How it works
Your agent runs one search. Leave the tier to the one you set, or ask for balanced when it needs several sources; pin a domain filter or a recency if you want.
Every engine in your tier runs at the same time, under a per-query cost ceiling. If one fails, the rest still land. fast asks three indexes and answers in about a second.
Merged, de-duplicated by page, ordered, each page marked with the engines that found it. Titles, links and excerpts, ready for a model to read.
Per-engine status, latency and cost, kept against the request id, and the search placed in its session's trajectory on the platform.
03 / What Jevlin does
One call fans out to every engine in your tier, in parallel. Results come back merged, de-duplicated by page, each one labelled with the engines that found it. Agreement between independent indexes is the evidence.
When the first result set is thin, a single-index agent searches again, and every extra turn costs model tokens. Fan-out front-loads the coverage so your agent has less reason to go back.
No accounts to juggle and nothing to top up. Jevlin holds the engine keys; setup gets yours, with no browser and nothing to paste.
Every search is a trace: which engine returned what, how fast, and what it cost. Every session is a trajectory: what the agent was working on when it searched, what came back, and what it concluded. On the platform, turn by turn.
04 / Tiers
A tier is how wide a search fans out. What a search costs depends on what it carries: with its trajectory it is free up to a daily allowance, and without one it is list price.
Every tier, once your agent is claimed
Rate and concurrency come with the account, not the tier.
The trajectory is what makes a search free: the assistant text your agent's hook sends with it. A search from a shell with JEVLIN_TRACE=off, or from a host whose hook carries no text, is list price. Free searches count per account, up to $2 of engine cost a day. A key whose trajectories do not verify is moved to list price for a day, twice in a week until support restores it; the keys page says so. The pricing page has every number.
05 / Built for coding agents
Setup finds the coding agents on your machine and writes a skill and hooks into each: Claude Code, Cursor, Codex, opencode, Pi and Hermes. Any other agent gets a rules block to paste.
npm install -g @jevlinsearch/jevlin
jevlin setup
Setup registers itself with the search platform and receives a key, with no browser and nobody at a keyboard. Search works from that moment. A person claims the agent later to attach it to an account at platform.jevlin.ai, which is also where you get a key for direct API calls.
The skill makes Jevlin the default search. Two commands keep it in your hands.
/jevlin off — the agent's own search is the default again
/jevlin tier balanced — the tier every search carries
SuperSearch gives your model the sources, not a paragraph written by someone else's model. Your agent reads the web, not a summary of it.
The query travels as JSON on stdin, never in argv. The context that rides with a search is scrubbed of credentials, key blocks, email addresses and your account name before it leaves, and JEVLIN_TRACE=off sends none of it.
Setup gets a key with no card and nothing to top up. The fast and balanced tiers come with a free daily allowance; max draws on credit you add on the platform.
06 / Benchmark
We asked five search engines and the Jevlin fan-out the same 485 developer questions, three phrasings each, three trials. No model judge: the page with the answer is known for every question and matched by URL. Every call is public.
The answer page was in the top 10 for 62% of questions on Jevlin balanced, against 58% for the best single engine. Three phrasings lift every engine by 12 to 16 points.
07 / Start
Install, run setup, restart your agent. Setup gets the key for you. The quickstart has the native installer and every agent; calling the API yourself starts at how an agent gets an API key.
Or let your agent do it. Open agents.md in Claude Code, Cursor or Codex, or paste the link into any agent.
npm install -g @jevlinsearch/jevlin jevlin setup # or, without Node curl -fsSL https://jevlin.ai/install.sh | sh