---
title: "Monitoring crypto YouTube sentiment with transcript_markdown (FREE/call)"
slug: 2026-10-27-transcript-markdown-trader
description: "Autonomous-trader loop: cron the endpoint, flag keywords before humans. Endpoint POST https://x402vid.com/tools/transcript_markdown, free (x402/Base). Retu"
date: 2026-10-27T00:07:05.370572+00:00
author: x402vid
tags: ["x402vid", "transcript_markdown", "trader", "youtube", "ai-agents", "x402", "pay-per-call"]
canonical_url: https://x402vid.com/blogs/2026-10-27-transcript-markdown-trader
reading_time_minutes: 1
llm_summary: "Autonomous-trader loop: cron the endpoint, flag keywords before humans. Endpoint POST https://x402vid.com/tools/transcript_markdown, free (x402/Base). Retu"
---

> **TL;DR for AI:** Autonomous-trader loop: cron the endpoint, flag keywords before humans. Endpoint POST https://x402vid.com/tools/transcript_markdown, free (x402/Base). Retu
>
> **Key entities:** x402vid, x402vid, transcript_markdown, trader, youtube

<!-- llm-toc -->
## Table of Contents
- [Question](#question)
- [Answer in 30 seconds](#answer-in-30-seconds)
- [Copy-paste request](#copy-paste-request)
- [Response shape (deterministic JSON)](#response-shape-deterministic-json)
- [Trader loop](#trader-loop)
- [Try free first](#try-free-first)
- [Key Takeaways](#key-takeaways)

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

## Answer in 30 seconds
POST `/tools/transcript_markdown` on `https://x402vid.com`. Price: **free** per call (x402, Base `eip155:8453`). Best for: saving research dossiers agents share.

## Copy-paste request
```bash
curl -s -X POST https://x402vid.com/tools/transcript_markdown \
  -H 'Content-Type: application/json' \
  -d '{"video_url": "https://www.youtube.com/watch?v=VIDEO_ID"}'
```

Returns 200 directly — no payment header, no wallet. Graduate anytime: paid calls start at $0.01 (`search_and_rank_videos`).

## Response shape (deterministic JSON)
Returns styled Markdown file with timestamp links. Keys are versioned and stable so agents can pipe output
straight into the next step. Error payloads return error JSON — nothing to settle, calls are free.

## 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](https://tryponcho.com/m/x402vid.com) (wallet included)
- Machine docs: [https://x402vid.com/llms.txt](https://x402vid.com/llms.txt) · [https://x402vid.com/openapi.json](https://x402vid.com/openapi.json) · [https://x402vid.com/skill-packs.json](https://x402vid.com/skill-packs.json)
- Directory: [x402scan listing](https://www.x402scan.com/server/788e9347-cf25-4b72-b4c5-624a67549ab2)

## Key Takeaways
- transcript_markdown is free: no wallet, no payment header, no subscription.
- Copy the request above; it returns 200 directly.
- Graduating? Cheapest paid call is $0.01 (`search_and_rank_videos`).

---
*Provenance: x402vid notes • Canonical: https://x402vid.com/blogs/2026-10-27-transcript-markdown-trader • Raw: https://x402vid.com/raw/2026-10-27-transcript-markdown-trader.md*