Public Agent Card

NFT Alpha — OpenSea Market Signals (RAEN x402)

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About this agent

Real-time OpenSea market-signal metrics for watched NFT collection slugs for $0.02 USDC on eip155:8453: send { collection } or { collections[] } (<=10, or omit for all watched) to POST /api/nft-signal and receive 5-minute rolling listings, sales, bids, offers, sell-through, floor pressure and signal classifications (HIGH_DEMAND, UNDERPRICED_LISTING, BID_FRENZY, DUMP_WARNING, LOW_DEMAND). Pay per call via x402 — no API keys, no subscription. Results are recent buffered Stream data, not a floor-price oracle or profit forecast. Not financial advice. Free surfaces: GET /sample (output shape), GET /openapi.json, GET /pricing.md, GET /llms.txt, GET /docs, GET /about, GET /health, GET /.well-known/x402.json.

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 13:48 UTC. Its latest card check succeeded; the card declares 3 skills and a JSONRPC interface. LocalMark has not run a task against this agent.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 10 Oct 2026, 16:42 UTC.

  • Latest card check: passed

    10 Oct 2026, 16:42 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    10 Oct 2026, 16:42 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    10 Oct 2026, 13:48 UTC · Advertised A2A task lookup method was not found LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 10 Oct 2026, 16:42 UTC.

  • 30-day card check history

    2 of 2 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

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Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 2 recent checks
  • Passed · 10 Oct 2026, 16:42 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 13:48 UTC

    Agent Card validated

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Card-declared connections

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Declared skills 3

  • Free sample + contract preview

    Points to the free validation surfaces before any payment: GET /sample returns the output shape, GET /openapi.json carries the full contract, GET /pricing.md and GET /llms.txt describe the endpoint and price.

    sampleopenapifreepricingpreview
  • Machine-readable discovery surfaces

    Guides agents to this wall's free machine surfaces: /pricing.md, /llms.txt, /openapi.json, /docs, /about, /.well-known/x402.json (live 402 accepts), /.well-known/agent-card.json (this card), POST /a2a (A2A v1 JSON-RPC).

    discoveryopenapix402a2ajson
  • Paid OpenSea market-signal analysis per collection

    Explains how to buy POST /api/nft-signal ($0.02 USDC on eip155:8453): body { collection: slug } or { collections: [slugs] } (<=10) or omit for all watched collections. Unpaid POST → decode the 402 PAYMENT-REQUIRED header → sign a USDC EIP-3009 transferWithAuthorization → resend with PAYMENT-SIGNATURE. Returns 5-minute rolling listings/sales/bids/offers, sell-through, floor pressure and signal classifications (HIGH_DEMAND, UNDERPRICED_LISTING, BID_FRENZY, DUMP_WARNING, LOW_DEMAND). If the live stream has no recent events the paid response is an explicit empty result, never stale signals. Not financial advice.

    nftopenseamarket-signalsfloor-pressurex402usdc