# Closelook paid data API (Closelooknet)

> Per-call paid depth on Closelook's own derived values (scores, ranks, index history and decomposition), sold to AI agents over HTTP 402. No account, no API key. Settled by Stripe.

## Products
- POST /paid/stock/{ticker}/score — Company Score Depth — full module breakdown with peer ranks. USD 0.02 in USDC, or USD 0.50 by card.
  All score modules (valuation, quality, growth, balance sheet, cash quality, capital allocation, momentum, composite), literature scores (Altman Z, Piotroski F, Beneish M) and peer ranks (overall, sector, sector top 10) computed at call time. The free layer shows the composite number; this answers why.
  Free alternative: https://closelook.net/indices/stock/{ticker}/ (JSON twin: composite + rank, free)
- POST /paid/index/{slug}/history — Index History & Decomposition — full daily series plus current structure. USD 0.10 in USDC, or USD 0.50 by card.
  The complete daily history of a Closelook index — every published variant and sub-index — plus the current decomposition snapshot (members, sectors, layers, weights). The free layer shows the headline level; this answers how it got there and what is inside.
  Free alternative: https://closelook.net/indices/{slug}/?format=json (level, day move, variants — free)
- POST /paid/record/{slug} — Trader Record Depth — the verified-record bundle for one subject. USD 0.05 in USDC, or USD 0.50 by card.
  The derived record bundle for one trader/manager/fund: the Closelook metric battery and rating, the complete 13F board from SEC EDGAR (all positions, the full quarter-over-quarter rotation with counts, options overlay), rule-based famous-call standings and holder-level short-register matches — one machine shape per subject. Closelook calculations and official-register facts only; raw platform or vendor data is never included. The free layer shows identity, grade and headline metrics.
  Free alternative: https://closelook.net/records/index.json (catalogue with grades, headline metrics and batteries, free)

Index slugs: rubin, halo, euro-ai, aw40, agentic, ai-users. Tickers as on closelook.net stock pages (e.g. NVDA, ASML). Record slugs: https://closelook.net/records/index.json.

## How to pay
Send the request (POST, body {} or none). The answer is 402 Payment Required with one WWW-Authenticate: Payment challenge per method offered now:
- tempo — USDC on Tempo (MPP); network fee sponsored
- evm — USDC on Base (x402 v2 via PAYMENT-REQUIRED / PAYMENT-SIGNATURE, or MPP); gasless EIP-3009 authorization
- solana — USDC on Solana (MPP); the buyer pays a small SOL network fee
- stripe — card or Link via a shared payment token (MPP); USD 0.50 per call
Pay with any of them, retry with the credential, and receive the JSON plus a Payment-Receipt header.
Unknown tickers or slugs (404) and temporarily unavailable data (503) are answered before the payment gate and never charged.

## Before buying
- Product terms (coverage, refresh, history, rights): /passes.json
- OpenAPI: /openapi.json
- Free layer: https://closelook.net/llms.txt · MCP https://closelook.net/api/mcp

## Rules
- Investment-diary data. Not investment advice, not a personalised recommendation.
- Included: display to the paying user, internal research use, processing by the buyer’s agent, storage of the purchased response. Not included: republication, redistribution to third parties, embedding for downstream users, model training, financial-product creation (indices). Rights beyond the included set require a separate licence.
- Provider: Closelook (Closelook Venture GmbH), closelook.net.