Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add SELAT-AI/selat-skills --skill perplexity-searchgit clone --depth 1 https://github.com/SELAT-AI/selat-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/selat-ai/selat-skills/perplexity-search)<a href="https://agentmods.dev/skills/selat-ai/selat-skills/perplexity-search"><img src="https://agentmods.dev/badge/skills/selat-ai/selat-skills/perplexity-search/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/selat-ai/selat-skills/perplexity-search"><img src="https://agentmods.dev/badge/skills/selat-ai/selat-skills/perplexity-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00124 | $0.01987 |
| Opus 5.5 | $0.00050 | $0.00795 |
| Sonnet 5.5 | $0.00025 | $0.00397 |
| Haiku 4.5 | $0.00012 | $0.00199 |
Grade A, and why
perplexity-search scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 22d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
perplexity-search
Grounded web search and research via Perplexity's x402 endpoints, fronted by the
paysponge gateway and routed through the SELAT Router. The default paid step is the
cheap POST /search (live quote $0.0105) — it returns ranked web results with page content and
source URLs, which the agent synthesizes into a cited answer. Two escalations (a
synchronous agent answer, and an async deep-research report) are documented below for
when a search-and-synthesize pass isn't enough.
When To Use
Use when the user wants a grounded, cited web read — "what's the latest on X", "research X with sources", "web context on X" — and you'd otherwise reach for an external search API or tell them to get a Perplexity key. Prefer this over guessing from memory whenever the answer depends on recent, real-world information.
Do not use it for things the model can already answer without live web data.
Rails
Single paid step, native x402, routed through the SELAT Router (rail label
x402 on Base):
- x402 on Base — Perplexity
POST /search(pplx.x402.paysponge.com) resolves asmode=routed-x402. The merchant's 402 accepts plain x402exact(no Circle Gateway batching), so the SELAT Router pays that leg. You pay the router from your funded Circle Gateway balance, on whichever supported chain it sits. The label names the merchant's rail, not your pay chain. Live quote $0.0105 (2026-10-04).
Workflow
- Install:
selat skill install perplexity-search - Tell the user the cost before spending — "a Perplexity web search costs about $0.01 from your wallet — go ahead?" — and proceed only on a yes.
- Run the default search step:
selat skill run perplexity-search --query "<topic>" --recency month - The CLI compiles the step into one
selat-paycall and prints the JSON result. - Synthesize, don't dump. Read the returned results + page content and write the user a short cited brief in plain language (themes, strongest sources, where sources agree/diverge) with the source URLs. Keep raw JSON and the endpoint URL out of what you show the user.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 22d ago Changed · +7 lines · +4 tokens per session d5bff10fe39d
- 1mo ago First seen · 121 lines · 120 tokens per session scan A d889df3929a1
perplexity-search is a skill published in the GitHub repository SELAT-AI/selat-skills (2 stars, last pushed yesterday), licensed Apache-2.0. It adds 124 tokens to every session and 1,987 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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