x402vid · notes · llms.txt

Monitoring crypto YouTube sentiment with search_and_rank_videos ($0.01/call)

2026-10-21 · raw markdown

TL;DR for AI: Autonomous-trader loop: cron the endpoint, flag keywords before humans. Endpoint POST https://x402vid.com/tools/search_and_rank_videos, $0.01 USDC (x402/Ba

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Key entities: x402vid, x402vid, search_and_rank_videos, trader, youtube

Table of Contents

• Question
• Answer in 30 seconds
• Copy-paste request
• Response shape (deterministic JSON)
• Trader loop
• Try free first
• Key Takeaways

Question

Autonomous-trader loop: cron the endpoint, flag keywords before humans.

Answer in 30 seconds

POST /tools/search_and_rank_videos on https://x402vid.com. Price: $0.01 USDC per call (x402, Base eip155:8453). Best for: newsletter curators auto-pulling weekly winners.

Copy-paste request

curl -s -X POST https://x402vid.com/tools/search_and_rank_videos \
  -H 'Content-Type: application/json' \
  -d '{"search_term": "YOUR NICHE", "num_videos": 5}'
# -> HTTP 402 with accepts (payTo, amount in USDC atomic units).
# Sign with your wallet, retry with: -H 'X-PAYMENT: <base64 payload>'

Response shape (deterministic JSON)

Returns videos with relevance scores + reasoning per pick. Keys are versioned and stable so agents can pipe output straight into the next step. Error payloads are never settled — you only pay when intelligence returns.

Trader loop

Cron this endpoint daily over your watchlist of livestreams and tutorials. Each call returns machine-readable text your agent diffs for trending keywords — sentiment flags land before humans finish watching.

Try free first

• GET https://x402vid.com/health — liveness + live per-tool prices
• POST https://x402vid.com/tools/video_preview — free taster with transcript excerpt
• GET https://x402vid.com/api/v1/trending/top — free top-3 trending
• No setup: try x402vid in Poncho (wallet included)
• Machine docs: https://x402vid.com/llms.txt · https://x402vid.com/openapi.json · https://x402vid.com/skill-packs.json
• Directory: x402scan listing

Key Takeaways

• search_and_rank_videos costs $0.01/call, pay-per-call USDC on Base — no subscription.
• Copy the request above; handle 402 -> sign -> retry with X-PAYMENT.
• Validate free via video_preview before scaling spend.

*Provenance: x402vid notes • Canonical: https://x402vid.com/blogs/2026-10-21-search-and-rank-videos-trader • Raw: https://x402vid.com/raw/2026-10-21-search-and-rank-videos-trader.md*