Agent-ready YouTube transcripts and supplied-transcript normalization with timestamped segments, model-sized chunks, and source citations. Pay per successful response in USDC over x402.
Pay from $0.003 to $0.01 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.
ASSESSMENT
updated 1h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 550ms
- avg response
- 406ms
- total checks
- 24
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.003 to $0.01 (p27 in AI)
- price (min)
- $0.003
- price (max)
- $0.01
- category percentile (min)
- p27 in AI
- category percentile (max)
- p28 in AI
- endpoints / prices
- 2 / 2
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
traction $0 30d · 0 buyers
- volume 30d
- $0
- buyers 30d
- 0
- settlements 30d
- 0
- last settlement
- ---
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
Attributed pro-quota: this payout address is shared, so volume and buyers are the operator-level figure divided by the services sharing it. A declared convention, not an individually observed measure, and still a conservative undercount.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedThe service provides AI-powered transcript context extraction from YouTube videos and supplied transcripts, with lexical evidence search capabilities.
- category
- video-transcripts
- in
- body
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| POST | /v1/transcripts/context | $0.003 | Base/Solana | USDC | |
| POST | /v1/youtube/transcript | $0.01 | Base/Solana | USDC |
REQUEST / RESPONSE EXAMPLE
An unpaid request to POST /v1/transcripts/context returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i -X POST 'https://transcript.melchiorlabs.com/v1/transcripts/context'
// 402 response (captured by monitor) · 2 payloads · click to expand
[
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x174fA5CC0E9C170FC8f361a15fcce3d9271Df880",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 180
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
},
"payTo": "9DqUuG8FVAPKWMNSLHQUfod1FhWZ47igMNz6muKrZDfu",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 180
}
],
"resource": {
"url": "https://transcript.melchiorlabs.com/v1/youtube/transcript",
"tags": [
"youtube",
"transcript",
"agents",
"captions",
"context"
],
"iconUrl": "https://transcript.melchiorlabs.com/icon.svg",
"mimeType": "application/json",
"description": "Turn a public YouTube video into clean transcript chunks with timestamp citations for AI agents.",
"serviceName": "Melchior Video Context"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
"language": "en",
"includeText": true,
"preferManual": true,
"includeSegments": true,
"maxChunkCharacters": 2400
},
"type": "http",
"method": "POST",
"bodyType": "json",
"pathParams": {}
},
"output": {
"type": "json",
"example": {
"usage": {
"cache": "miss",
"characters": 4200,
"chunkCount": 2,
"estimatedTokens": 1050
},
"video": {
"id": "dQw4w9WgXcQ",
"url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
"title": "Video title",
"durationSeconds": 213
},
"chunks": [
{
"text": "Agent-ready context...",
"index": 0,
"citation": {
"url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ&t=0s",
"label": "0:00–0:35"
},
"endSeconds": 35,
"startSeconds": 0
}
],
"requestId": "0b0ef10e-ff50-4a45-9c4e-b7344aa93f63",
"transcript": {
"text": "Transcript text...",
"source": "manual",
"language": "en",
"segmentCount": 42
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"pattern": "^https://(?:www\\.|m\\.)?(?:youtube\\.com|youtu\\.be)/",
"description": "Public youtube.com or youtu.be video URL"
},
"language": {
"type": "string",
"default": "en",
"description": "Caption language code, such as en or es"
},
"includeText": {
"type": "boolean",
"default": true
},
"preferManual": {
"type": "boolean",
"default": true
},
"includeSegments": {
"type": "boolean",
"default": true
},
"maxChunkCharacters": {
"type": "integer",
"default": 2400,
"maximum": 8000,
"minimum": 400
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"pathParams": {
"type": "object"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": ":var1"
}
},
"x402Version": 2
},
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x174fA5CC0E9C170FC8f361a15fcce3d9271Df880",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
},
"payTo": "9DqUuG8FVAPKWMNSLHQUfod1FhWZ47igMNz6muKrZDfu",
"amount": "3000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://transcript.melchiorlabs.com/v1/transcripts/context",
"tags": [
"transcript",
"agents",
"chunking",
"citations",
"context"
],
"iconUrl": "https://transcript.melchiorlabs.com/icon.svg",
"mimeType": "application/json",
"description": "Normalize text, WebVTT, SRT, or timestamped segments into compact, citeable chunks for AI agents.",
"serviceName": "Melchior Video Context"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"text": "WEBVTT\n\n00:00:00.000 --> 00:00:03.000\nHello, agents.",
"format": "vtt",
"maxChunkCharacters": 2400
},
"type": "http",
"method": "POST",
"bodyType": "json",
"pathParams": {}
},
"output": {
"type": "json",
"example": {
"usage": {
"characters": 14,
"chunkCount": 1,
"estimatedTokens": 4
},
"chunks": [
{
"text": "Hello, agents.",
"index": 0,
"citation": {
"label": "0:00–0:03"
},
"endSeconds": 3,
"startSeconds": 0
}
],
"requestId": "89416332-bc4e-43da-b0e2-32af08677d9e",
"transcript": {
"text": "Hello, agents.",
"segmentCount": 1
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"properties": {
"text": {
"type": "string",
"maxLength": 1000000,
"description": "Plain text, WebVTT, or SRT transcript"
},
"format": {
"enum": [
"text",
"vtt",
"srt"
],
"type": "string",
"default": "text"
},
"segments": {
"type": "array",
"items": {
"type": "object",
"required": [
"startSeconds",
"endSeconds",
"text"
],
"properties": {
"text": {
"type": "string",
"description": "Transcript text spoken during this segment."
},
"endSeconds": {
"type": "number",
"description": "Segment end time in seconds from the beginning of the source."
},
"startSeconds": {
"type": "number",
"description": "Segment start time in seconds from the beginning of the source."
}
}
},
"maxItems": 20000
},
"sourceUrl": {
"type": "string",
"pattern": "^https?://"
},
"includeText": {
"type": "boolean",
"default": true
},
"includeSegments": {
"type": "boolean",
"default": true
},
"maxChunkCharacters": {
"type": "integer",
"default": 2400,
"maximum": 8000,
"minimum": 400
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"pathParams": {
"type": "object"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": ":var1"
}
},
"x402Version": 2
}
] UPTIME
RECENT CHECKS
OVER TIME
All charts share the 7d window selected here. Every series is also served as JSON at /api/v1/services/melchior-video-context-mrupfcut-0/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
Median across 2 endpoints. Use the selector to isolate one.
Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service figure is attributed, the assessment block and the ranking, it is the address total divided pro-quota by the 2 services sharing it: a declared convention, not an individually observed measure.
Shared payout address (1 other service). These bars are the full shared address (operator-level), so do not sum them across the services that share it. Where a per-service buyer count is attributed, the assessment block and the ranking, it is divided pro-quota by the 2 services sharing the address and can be fractional: a declared convention, not an individually observed measure.
COMPLIANCE
11/11 checks pass · grade A- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
EMBED THIS BADGE
<a href="https://x402-list.com/services/melchior-video-context-mrupfcut-0?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/melchior-video-context-mrupfcut-0.svg" alt="Melchior Video Context listed on x402-list" height="28"> </a>
[](https://x402-list.com/services/melchior-video-context-mrupfcut-0?utm_source=badge&utm_medium=referral&utm_campaign=embed)
<a href="https://x402-list.com/services/melchior-video-context-mrupfcut-0?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/melchior-video-context-mrupfcut-0.svg?data=uptime" alt="Melchior Video Context uptime on x402-list" height="28"> </a>