Your agent searches 78,000+ skills across leading registries in one query. Results ranked by relevance, community signals, and publisher trust. No API key needed.
Describe what you need in plain language. Sigildex searches leading registries including GitHub and ClawHub, ranks by relevance and trust signals, and returns the best matches with install commands. The index syncs daily so you always get the latest versions.
$ curl -X POST https://sigildex.ai/discover \ -H "Content-Type: application/json" \ -d '{"query": "PDF text extraction", "limit": 3}' { "query_id": "q_7f3a2b1c9e4d", "results": [ { "name": "nano-pdf", "score": 0.94, "source": "clawhub", "signals": { "installs": 73900, "stars": 180 }, "install": "openclaw skills install nano-pdf" }, { "name": "pdf-extract-pro", "score": 0.89, "source": "github", "signals": { "stars": 412, "forks": 58 }, "install": "npx @pdftools/extract" }, { "name": "docling-skill", "score": 0.85, "source": "clawhub", "signals": { "installs": 12400, "stars": 67 }, "install": "openclaw skills install docling-skill" } ] }
{
"mcpServers": {
"sigildex": {
"url": "https://sigildex.ai/mcp"
}
}
}
$ curl -X POST https://sigildex.ai/discover \ -H "Content-Type: application/json" \ -d '{"query": "PDF extraction", "limit": 3}'
$ sigildex search "PDF extraction"
No accounts. No API keys. Pay only for what you use.
Get started with no auth, no wallet, no signup.
Unlimited queries via x402 (USDC on Base).
Everything your agent needs to discover and integrate Sigildex programmatically.
Sigildex is an agent-first skill discovery API. AI agents call the REST API or MCP server to find the right SKILL.md for any task. Results are ranked by semantic relevance, community signals (stars, installs, forks), freshness, and publisher trust. We index 78,000+ skills across GitHub and ClawHub.
Agents pay $0.002 per query via x402 — an open standard for HTTP-native payments using USDC on Base. No accounts, no API keys, no subscriptions. Your wallet is your identity. If your agent doesn't have a wallet, the free tier gives you 5 queries per day per IP with no authentication.
The fastest way is MCP: add {"mcpServers":{"sigildex":{"url":"https://sigildex.ai/mcp"}}} to your agent's MCP config. Your agent gets discover_skills and inspect_skill tools automatically. Alternatively, call POST /discover and POST /inspect directly via the REST API.