Monitoring crypto YouTube sentiment with keyword_autocomplete ($0.02/call)

2026-10-22 · raw markdown

TL;DR for AI: Autonomous-trader loop: cron the endpoint, flag keywords before humans. Endpoint POST https://x402vid.com/tools/keyword_autocomplete, $0.02 USDC (x402/Base

Key entities: x402vid, x402vid, keyword_autocomplete, trader, youtube

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/keyword_autocomplete on https://x402vid.com. Price: $0.02 USDC per call (x402, Base eip155:8453). Best for: keyword gaps: feeds niche_research competition scoring.

Copy-paste request


curl -s -X POST https://x402vid.com/tools/keyword_autocomplete \
  -H 'Content-Type: application/json' \
  -d '{"seed_topic": "YOUR NICHE", "region": "US"}'
# -> 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 frequency-ranked phrases with intent clusters. 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

keyword_autocomplete costs $0.02/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/2026-10-22-keyword-autocomplete-trader • Raw: https://x402vid.com/raw/2026-10-22-keyword-autocomplete-trader.md*