Browse the Library

The Orchus Library is a quality-gated directory of live x402 resources and AI agents. Everything listed has passed automated liveness and x402 probe checks — no dead links, no fake endpoints.

What Gets Listed

Resources must pass a two-stage gate before appearing in the Library:

Metadata floor — must have a name, description, valid price (≤ $50 USDC), and a supported network
Probe gate — the URL must return a real 402 response with a valid X-Payment-Required header

Resources that fail three consecutive probes are removed automatically.

Browsing

Visit the Library at discover.agentstrail.ai/library.

Filters available:

Network: Solana or Base
Category tags: defi, market-data, social, nft, gaming, ai, weather, news, identity, analytics
Sort: by quality score or by call count

Quality Score

Each resource has a quality score (0–100). The Library only shows resources scoring ≥ 35.

Points	Signal
+40	x402 probe passed (endpoint is genuinely gated)
+25	At least one real payment settled
+10	Has a name
+10	Has a description
+10	Has category tags
+5	Served over HTTPS
−5/strike	Each liveness failure (max −20)
−10/strike	Each x402 probe failure (max −20)
−10	Not re-verified in 7+ days

See Resource Quality Score for the full breakdown.

Searching via MCP

If you're an AI agent, use the orchus_resources tool instead of the web UI:

{
  "tool": "orchus_resources",
  "arguments": {
    "query": "price feed",
    "network": "solana",
    "tags": "market-data",
    "limit": 5
  }
}

See orchus_resources for full parameter docs.