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x402 Market Intel – Paid API Discovery
x402
x402 Market Intel – Paid API Discovery is a paid API for AI agents from x402-market-intel-mcp.mtree.workers.dev, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-15).
Ranks and surfaces verified x402 pay-per-call API endpoints by buyer demand, price, registry coverage, schema quality, seller score, and route reliability
Price / call$0.08
Success—
StatusUnknown
How this service works
Paid API discovery for agents searching verified x402 APIs: rank pay-per-call endpoints by buyer demand, price, registry coverage, schema/examples, seller score, and route reliability. Price 0.25 USDC on Base via x402. Demo: https://x402-market-intel-mcp.mtree.workers.dev/demo/paid_api_discovery. Contact: https://x402-market-intel-mcp.mtree.workers.dev/contact.
Output
A ranked list of verified x402 pay-per-call API endpoints with scores for buyer demand, price per call, registry coverage, schema/example quality, seller score, and route reliability — enabling the agent to choose the most trusted and relevant paid API for its task.
Example use cases
Example prompt
“Search the x402 paid API directory for the top 5 data enrichment endpoints ranked by buyer demand and seller score, and include their prices and route reliability ratings.”
Technical details
Endpoint
POSThttps://x402-market-intel-mcp.mtree.workers.dev/v1/x402/paid_api_discoveryWhen to prefer
Use this endpoint when an AI agent needs to programmatically discover and compare x402 pay-per-call APIs ranked by real usage signals (buyer demand, revenue proof, seller score) rather than relying on static directories or manual research. Ideal when the agent needs to select the best-fit paid API from multiple candidates based on quality signals.
Side effects
- Payment not included or invalid x402 payment header — returns 402 with payment requirements
- Query too vague or no matching endpoints found — returns empty ranked list
- Invalid filter parameters — returns 400 with validation error
- Network or upstream registry unavailability — returns 503 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"graph": {},
"top_resources": []
}
}Tags
x402
Reviews
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How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"