Brave Search API Skills is a collection of agent skills that gives AI coding agents access to the Brave Search API. It is intended for agents such as Claude Code, Cursor, GitHub Copilot, Codex, Gemini CLI, and other tools supporting the Agent Skills standard. The catalogue add-ons are the project's own skills and configuration guidance for using Brave Search.
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 brave/brave-search-skills --skill spellcheckgit clone --depth 1 https://github.com/brave/brave-search-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/brave/brave-search-skills/spellcheck)<a href="https://agentmods.dev/skills/brave/brave-search-skills/spellcheck"><img src="https://agentmods.dev/badge/skills/brave/brave-search-skills/spellcheck/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/brave/brave-search-skills/spellcheck"><img src="https://agentmods.dev/badge/skills/brave/brave-search-skills/spellcheck.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 15 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 27 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00041 | $0.00619 |
| Opus 5 | $0.00020 | $0.00309 |
| Sonnet 5 | $0.00008 | $0.00124 |
| Haiku 4.5 | $0.00004 | $0.00062 |
Grade A, and why
spellcheck 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 12d 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 -s "https://api.search.brave.com/res/v1/spellcheck/search" \ How it starts
The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spellcheck
Requires API Key: Get one at https://api.search.brave.com
Plan: Included in the Spellcheck plan. See https://api-dashboard.search.brave.com/app/subscriptions/subscribe
Quick Start (cURL)
curl -s "https://api.search.brave.com/res/v1/spellcheck/search" \
-H "Accept: application/json" \
-H "X-Subscription-Token: ${BRAVE_SEARCH_API_KEY}" \
-G \
--data-urlencode "q=artifical inteligence" \
--data-urlencode "lang=en" \
--data-urlencode "country=US"
Endpoint
GET https://api.search.brave.com/res/v1/spellcheck/search
Authentication: X-Subscription-Token: <API_KEY> header
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
q |
string | Yes | — | Query to spell check (1-400 chars, max 50 words) |
lang |
string | No | en |
Language preference (2+ char language code, e.g. en, fr, de, pt-br, zh-hans). 51 codes supported |
country |
string | No | US |
Search country (2-letter country code or ALL) |
Response Fields
| Field | Type | Description |
|---|---|---|
type |
string | Always "spellcheck" |
query.original |
string | The input query as submitted |
results |
array | Spell-corrected suggestions. May be empty when no correction is found |
results[].query |
string | A corrected version of the query |
Example Response
{
"type": "spellcheck",
"query": {
"original": "artifical inteligence"
},
"results": [
{
"query": "artificial intelligence"
}
]
}
Use Cases
- Pre-search query cleanup: Check spelling before deciding which search endpoint to call
- "Did you mean?" UI: Show users a corrected suggestion before running the search
- Batch query normalization: Clean up user inputs in bulk
Notes
- Built-in alternative: Web Search and LLM Context have
spellcheck=trueby default — use this standalone endpoint only when you need the correction before searching - Context-aware: Corrections consider the full query context, not just individual words
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.
- 12d ago First seen · 75 lines · 41 tokens per session scan A 7c408a494450
spellcheck is a skill published in the GitHub repository brave/brave-search-skills (175 stars, last pushed 2d ago), licensed MIT. It adds 41 tokens to every session and 619 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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