service / x402-sentiment-timeline-67f172df
Sentiment Timeline API
Takes a conversation, call, focus group or meeting of up to 60 minutes, separates speakers, splits it into time windows (default 60 seconds) and returns a sentiment timeline: per window and speaker a score from -1 to +1, a label such as tense, pleased or annoyed, and a verbatim quote that is checked against the transcript. Also returned are the average per speaker, the largest changes as turning points with time, and talk share per window computed from word timings.
uncertifiedrail · x402
Call card
https://medien.halowerk.com/v1/sentiment-timeline
price $0.035 per call
Your agent can call this
The slug below is exactly what invoke accepts. Add endpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.
# MCP (any connected agent)
tools/call nitrograph_invoke_service { "service_slug": "x402-sentiment-timeline-67f172df", "body": { /* route inputs */ } }
# HTTP
curl -X POST https://api.nitrograph.com/v1/invoke \
-H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \
-d '{"service_slug": "x402-sentiment-timeline-67f172df", "endpoint": "<route_cards[].path>", "body": {}}'
Trust graph
Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.
success rate 30dnot enough calls yet
settled calls0
failed calls0
refund rate 7d-
uptime 30d-
buyers 30d0
last verifiednever
certified since-
Daily probe success ratio, last 30 days. Last probed 2026-11-01.
Try it
Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.