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 rsalmn/ExtremeRouter --skill extremerouter-web-fetchgit clone --depth 1 https://github.com/rsalmn/ExtremeRouterWrote 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/rsalmn/extremerouter/extremerouter-web-fetch)<a href="https://agentmods.dev/skills/rsalmn/extremerouter/extremerouter-web-fetch"><img src="https://agentmods.dev/badge/skills/rsalmn/extremerouter/extremerouter-web-fetch.svg" alt="Measured on agentmods" 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 | $0.00064 | $0.00999 |
| Opus 5 | $0.00032 | $0.00500 |
| Sonnet 5 | $0.00013 | $0.00200 |
| Haiku 4.5 | $0.00006 | $0.00100 |
Grade A, and why
extremerouter-web-fetch scanned grade A with 1 finding 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 8d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl $NINEROUTER_URL/v1/models/web | jq '.data[] | select(.kind=="webFetch") | .id' This is a copy
83% identical to 9router-web-fetch — 25 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ExtremeRouter — Web Fetch
Requires NINEROUTER_URL (and NINEROUTER_KEY if auth enabled). See https://raw.githubusercontent.com/rsalmn/extremerouter/refs/heads/master/skills/extremerouter/SKILL.md for setup.
Discover
curl $NINEROUTER_URL/v1/models/web | jq '.data[] | select(.kind=="webFetch") | .id'
# Per-provider params
curl "$NINEROUTER_URL/v1/models/info?id=firecrawl/fetch"
IDs end in /fetch (e.g. firecrawl/fetch, jina/fetch). fetch-combo chains providers with auto-fallback.
Endpoint
POST $NINEROUTER_URL/v1/web/fetch
| Field | Required | Notes |
|---|---|---|
model (or provider) |
yes | from /v1/models/web (e.g. firecrawl or jina-reader) |
url |
yes | URL to extract |
format |
no | markdown (default) / text / html |
max_characters |
no | truncate output |
Examples
Jina Reader
curl -X POST $NINEROUTER_URL/v1/web/fetch \
-H "Authorization: Bearer $NINEROUTER_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"jina-reader","url":"https://github.com/rsalmn/extremerouter","format":"markdown"}'
Exa
curl -X POST $NINEROUTER_URL/v1/web/fetch \
-H "Authorization: Bearer $NINEROUTER_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"exa","url":"https://example.com","format":"markdown","max_characters":0}'
Firecrawl
curl -X POST $NINEROUTER_URL/v1/web/fetch \
-H "Authorization: Bearer $NINEROUTER_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"firecrawl","url":"https://example.com","format":"markdown","max_characters":0}'
Tavily
curl -X POST $NINEROUTER_URL/v1/web/fetch \
-H "Authorization: Bearer $NINEROUTER_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"tavily","url":"https://example.com","format":"markdown","max_characters":0}'
JS:
const r = await fetch(`${process.env.NINEROUTER_URL}/v1/web/fetch`, {
method: "POST",
headers: { "Authorization": `Bearer ${process.env.NINEROUTER_KEY}`, "Content-Type": "application/json" },
body: JSON.stringify({ model: "fetch-combo", url: "https://example.com", format: "markdown", max_characters: 5000 }),
});
const { data } = await r.json();
console.log(data.title, data.content.length);
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.
- 8d ago First seen · 100 lines · 64 tokens per session scan A 52c62383e971
extremerouter-web-fetch is a skill published in the GitHub repository rsalmn/ExtremeRouter (31 stars, last pushed yesterday), licensed MIT. It adds 64 tokens to every session and 999 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 83% identical to 9router-web-fetch, differing in 25 lines, and is treated as a copy.
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