# LION

LION is an agent-commerce operator running two machine-facing x402 products on Base.

## Endpoint #1: LION Trend Intent MCP (production paid route)

Live x402-paid MCP/data service exposing JSON and CSV endpoints for public hardware-wallet buyer-intent and self-custody onboarding-friction signals.

### Why an agent should pay endpoint #1

Pay this endpoint when your agent needs a compact public-signal dataset (55 records, 14-column schema) about hardware-wallet purchase research and self-custody onboarding friction.

Useful for:
- testing x402-paid data access with a live low-cost endpoint
- enriching crypto research workflows
- comparing hardware-wallet decision-stage topics (Ledger vs Trezor, best cold wallet, under-$100 wallet shoppers, DeFi hardware-wallet intent)
- feeding wallet-growth or affiliate-routing research agents

Returns: 55 records with a 14-column schema, in either application/json or text/csv.
No API key. No PII. $0.01 USDC per request on Base via x402.

### Endpoint #1 URLs

- JSON (paid): https://gleaming-cassata-d41682.netlify.app/api/x402/trend-intent-raw-signal-json
- CSV (paid): https://gleaming-cassata-d41682.netlify.app/api/x402/trend-intent-raw-signal-csv
- Product page: https://gleaming-cassata-d41682.netlify.app/hardware-wallet-intent-data/

### Endpoint #1 payment details

- Price: $0.01 USDC per request on Base via x402.
- Network: eip155:8453 (Base mainnet).
- payTo: 0x84c2e2ec19a4b467D89fE3F008591DEEA884d9Ac.
- Asset: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 (USDC on Base).
- Scheme: exact.

### Endpoint #1 output schema (14 columns)

row_id, topic, query_or_tag, source_class, evidence_class, public_title, public_snippet, source_domain, captured_at, search_volume_monthly, difficulty, buyer_intent_score, confidence_score, payout_currency_relevance

## Endpoint #2: LION Marketplace Visibility Audit (public beta paid route)

Marketplace Visibility Audit is live as a public beta paid x402 route. LION's payment rail is proven by prior controlled Endpoint #1 settlements (Trend Intent MCP, $0.01 USDC). Endpoint #2 is newly launched (2026-05-27) and awaiting first external buyer. No external paid proof has been claimed for this endpoint.

### Tagline

Are agents able to discover and pay your x402/MCP service?

### Why an agent should pay endpoint #2

Use this endpoint when your agent needs to diagnose whether an x402 or MCP service is discoverable, callable, and payable by other agents.

Common silent failures the audit catches:
- stale payTo between /.well-known/x402.json, the live 402 body, and registry listings
- broken or missing /.well-known/x402.json
- 402 body that returns valid HTTP 402 but is not x402 v2-canonical
- no llms.txt, no agents.json, no OpenAPI
- extensions.bazaar.discoverable = false (or absent) so Coinbase Bazaar skips it
- inconsistent service metadata between Glama, Smithery, and the seller's own surfaces

Returns: a structured JSON report with per-check pass/fail, the specific bytes/fields that differ between surfaces, and a ranked list of remediation recommendations.

### Endpoint #2 paid endpoint

- URL: https://gleaming-cassata-d41682.netlify.app/api/x402/marketplace-visibility-audit-json
- Method: GET
- Required query param: ?url=<https URL of the x402/MCP seller endpoint you want audited>
- Price: $0.05 USDC per audit on Base via x402 (50000 atomic USDC).
- Network: eip155:8453
- Asset: 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 (USDC on Base)
- payTo: 0x84c2e2ec19a4b467D89fE3F008591DEEA884d9Ac
- Scheme: exact
- Auth: none. PII: none.

### Endpoint #2 agent flow

1. GET /api/x402/marketplace-visibility-audit-json?url=<https-url-to-audit>
2. Receive HTTP 402 with x402 v2 payment requirements in the body and a Payment-Required header.
3. Pay 50000 atomic USDC (= $0.05) on Base via x402 (CDP facilitator settles).
4. Retry the same GET (with the same ?url= and the Payment-Signature header, or X-Payment legacy alias).
5. Receive HTTP 200 with the audit JSON report.

### Endpoint #2 validation errors (before payment)

- GET with no `?url=` → HTTP 400, body `{"error":"invalid_audit_url","reason":"url_missing"}`
- GET with `?url=` that is not a valid https URL → HTTP 400, body `{"error":"invalid_audit_url","reason":"url_unparseable"}`
- GET with a valid `?url=` → HTTP 402 with x402 v2 payment requirements

### Endpoint #2 free first-pass audit (alternative)

If you prefer to evaluate before paying, request a free first-pass audit by emailing `lionmaster.operations@gmail.com` with subject `[LION Visibility Audit Request]` and the endpoint URL you want audited in the body. The output shape is the same JSON report you would get from the paid route.

Spec page: https://gleaming-cassata-d41682.netlify.app/x402-marketplace-visibility-audit/

### Endpoint #2 machine-readable descriptors

- agents.json: https://gleaming-cassata-d41682.netlify.app/lion-mcp/agents.json (see `endpoints[].id="endpoint_2"`)
- visibility-audit.json: https://gleaming-cassata-d41682.netlify.app/lion-mcp/visibility-audit.json
- visibility-audit.md: https://gleaming-cassata-d41682.netlify.app/lion-mcp/visibility-audit.md
- .well-known/x402.json: https://gleaming-cassata-d41682.netlify.app/.well-known/x402.json (route entry with `endpoint_id: endpoint_2`)

## Discovery surfaces (both endpoints)

- x402scan: https://www.x402scan.com/server/ff6b9887-818c-4491-90eb-61f533e69741
- MCP Registry name: io.github.LIONMASTER20/lion-mcp
- Glama: https://glama.ai/mcp/connectors/io.github.LIONMASTER20/lion-mcp
- Smithery: https://smithery.ai/servers/io.github.LIONMASTER20/lion-mcp
- Agentic.Market / Coinbase Bazaar (Endpoint #1 validator): indexed, validator reports Found on Bazaar, x402 v2.
- Agentic.Market / Coinbase Bazaar (Endpoint #2 validator URL): https://agentic.market/validate?url=https%3A%2F%2Fgleaming-cassata-d41682.netlify.app%2Fapi%2Fx402%2Fmarketplace-visibility-audit-json

## Tags

x402, MCP, USDC, Base, AI agents, agent-commerce, paid API, machine-readable data, crypto data, hardware wallets, audit, discoverability, public beta