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x402 Network Feed Subscription
x402
x402 Network Feed Subscription is a paid API for AI agents from agentdata-api.sander-van-aard.workers.dev, paid per call via x402, $2/call, status unknown (last checked 2026-09-14).
Subscribe to a 30-day change feed of the x402 payment network, returning a handle and cursor for free unlimited polling of host status, payTo address, and price changes across 1500+ monitored hosts.
Price / call$2
Success—
StatusUnknown
How this service works
Subscribe for 30 days to a change feed of the x402 network, from our own probes (~2 per host per day, 1500+ hosts). Returns a handle and a cursor; polling is then free and unlimited: /x402/network-feed/since returns all that changed since your cursor (down/up, payTo drift, price drift, manifest gained/lost), and /x402/network-feed/check takes up to 50 hosts you are about to pay and returns their last observed status, payTo and price plus changes. Facts only, no scores and no catalogue data.
Output
Returns a feed_handle and an initial cursor. The handle is used to renew the subscription; the cursor is used to poll /x402/network-feed/since for all changes since last poll (host up/down events, payTo address drift, price drift, manifest gained/lost). The /x402/network-feed/check endpoint accepts up to 50 hosts and returns their last observed status, payTo, price, and any recent changes. Polling after initial subscription is free and unlimited.
Example use cases
Agent payment safety pre-check
“Before my agent pays any of these 40 x402 hosts, check the feed for their last observed status, payTo addresses, and prices so I know nothing suspicious has changed recently.”
Continuous x402 network health monitor
“Subscribe me to the x402 network change feed so my system can poll every hour and alert me whenever hosts go down, come back up, or their payTo addresses drift from what we expect.”
Price drift alerting for x402 services
“I want a 30-day x402 network feed subscription so I can poll for price changes — alert me if any of the services my agents regularly pay have increased their price by more than expected.”
Technical details
Endpoint
POSThttps://agentdata-api.sander-van-aard.workers.dev/x402/network-feedWhen to prefer
Choose this endpoint when you need ongoing, cursor-based monitoring of the x402 ecosystem rather than a one-time snapshot. It is specifically suited for agents that make payments to x402 hosts and need to detect payTo address drift (fraud signal), price changes, or service outages before committing funds. Prefer this over the daily state-of-network report when you need near-real-time change detection rather than aggregate summaries, and over the trust-check endpoint when you want continuous monitoring rather than per-payment verification.
Side effects
- Payment not received — subscription not created, no handle or cursor returned
- Invalid or malformed POST body — 400 error with schema validation message
- Upstream probe data unavailable — partial or delayed feed initialization
- Duplicate subscription attempt may create a new handle rather than resuming existing one
- Network timeout on Workers edge — retry with same payment proof
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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