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LUMEN B2B Buyer Signals Research
x402
LUMEN B2B Buyer Signals Research is a paid API for AI agents from lumen-zero-x402.lumen-b2b.workers.dev, paid per call via x402, $19/call, status unknown (last checked 2026-10-12).
Returns B2B buyer signal intelligence for a given sourcing or procurement brief, identifying potential buying intent and market demand signals.
Price / call$19
Success—
StatusUnknown
How this service works
Real B2B sourcing and procurement research. Seven paid endpoints on Base mainnet. Payment settlement requires individual human approval by LUMEN. No autonomous purchases.
Output
Returns a JSON object with a receipt ID, product ID, payment amount, and status indicators confirming whether the buyer signal research request was queued. Because human approval is required by LUMEN, actual signal data is delivered asynchronously after verified payment settlement and manual review. The nextAction field guides the caller on what to do after submission.
Example use cases
Sourcing leads for a niche supplier
“I need to find which companies are actively in a procurement cycle for specialty food-grade packaging materials right now — can you pull buyer signals for suppliers of biodegradable containers in the US food manufacturing sector?”
Entering a new vertical market
“We're expanding into the construction sector with our SaaS project management tool — can you surface buyer signals showing which mid-market construction firms are currently evaluating or sourcing new project management software?”
Validating demand before product launch
“Before we launch our new line of industrial IoT sensors, can you check buyer signals to see if there's active procurement interest from manufacturers in the automotive or aerospace supply chain?”
Technical details
Endpoint
GEThttps://lumen-zero-x402.lumen-b2b.workers.dev/buy/buyer-signals?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real, human-researched B2B buyer intent signals for a specific sourcing brief and are willing to pay $19 USDC per query with a human-in-the-loop approval step. This is best suited for high-value procurement research where data quality matters more than speed, and where automated or scraped buyer intent tools have proven insufficient. Not suitable for real-time or high-volume automated pipelines given the manual approval requirement.
Side effects
- Requirement string too short (under 12 chars) or too long (over 1200 chars) returns a validation error
- Payment not settled on Base mainnet — request is not queued
- Human approval not yet granted — results are delayed or withheld
- Malformed query parameters return a 400-level error
- Service unavailable on Cloudflare Workers edge returns a 5xx error
- Insufficient USDC balance for $19 per-call fee blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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