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BYTE Library x402 Gateway – Bridge Flow Feed
x402
BYTE Library x402 Gateway – Bridge Flow Feed is a paid API for AI agents from x402.payperbyte.io, paid per call via x402, $0.019532/call, status unknown (last checked 2026-09-15).
Returns cryptographically signed, EIP-712 provenance-stamped cross-chain bridge flow data, paid per call in USDC via x402 on Base.
Price / call$0.019532
Success—
StatusUnknown
How this service works
Verified, provenance-first data feeds for AI agents. Every payload is cryptographically signed and EIP-712 PayloadAttestation provenance-stamped — covering crypto markets, DeFi yields, weather, earthquakes, news, code-pulse, threat-intel, and a slashable fact-oracle. Pay per call in USDC over x402 with no API keys — a wallet, not a secret on the box. Settlement is on Base (eip155:8453). Price is per-feed, derived from expected payload size at $0.005000/KB (floor $0.001000).
Output
A JSON payload containing current cross-chain bridge flow data, cryptographically signed by BYTE Library and stamped with an EIP-712 PayloadAttestation for provenance verification. Includes the feed identifier and relevant bridge transfer metrics. Approximately 3.9KB of signed data based on the ~$0.019532 price at $0.005/KB.
Example use cases
Example prompt
“Pull the latest bridge-flow feed from PayPerByte — I need the signed, provenance-attested data on how much value is moving across cross-chain bridges right now, and pay for it in USDC.”
Technical details
Endpoint
GEThttps://x402.payperbyte.io/feeds/bridge-flowWhen to prefer
Choose this endpoint when you need cryptographically attested, provenance-verified cross-chain bridge flow data that can be trusted without relying on a centralized API key — ideal for AI agents, smart contracts, or applications that require tamper-evident data sourcing and are willing to pay micro-amounts in USDC per call.
Side effects
- Payment insufficient or rejected — x402 payment header missing or USDC balance too low
- Invalid or expired payment — settlement on Base failed
- Feed temporarily unavailable — upstream bridge data source offline
- Malformed request — input schema not satisfied
- Network error on Base (eip155:8453) during settlement
Input
{
"properties": "bridge_flow_data"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"data": {
"v": 1,
"ts": "2026-06-12T04:52:43Z",
"feed": "bridge-flow",
"bridges": [
{
"stats": {},
"bridge": "layerzero"
},
{
"stats": {},
"bridge": "across"
},
{
"stats": {},
"bridge": "stargate"
},
{
"stats": {},
"bridge": "wormhole"
},
{
"stats": {},
"bridge": "hop"
},
{
"stats": {},
"bridge": "ccip"
}
],
"disclaimer": "Not financial advice. For informational and educational purposes only. Do not rely on this data for trading or investment decisions without independent verification.",
"bridges_active": [],
"probes_observed": [
{
"ok": false,
"ts": "2026-06-11T23:06:24Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→solana",
"bridge": "wormhole",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-11T23:26:54Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→solana",
"bridge": "wormhole",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-11T23:47:24Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "polygon→base",
"bridge": "stargate",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T00:07:54Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→solana",
"bridge": "wormhole",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T00:28:24Z",
"tx": "",
"err": "404 Client Error: Not Found for url: https://app.across.to/api/transactions?originChainId=1&destinationChainId=42161&limit=1",
"route": "ethereum→arbitrum",
"bridge": "across",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T00:48:54Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→solana",
"bridge": "wormhole",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T01:09:24Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→solana",
"bridge": "wormhole",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T01:29:54Z",
"tx": "",
"err": "404 Client Error: Not Found for url: https://app.across.to/api/transactions?originChainId=8453&destinationChainId=10&limit=1",
"route": "base→optimism",
"bridge": "across",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T01:50:01Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→arbitrum",
"bridge": "stargate",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T02:10:01Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→solana",
"bridge": "wormhole",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T02:30:03Z",
"tx": "",
"err": "404 Client Error: Not Found for url: https://app.across.to/api/transactions?originChainId=42161&destinationChainId=8453&limit=1",
"route": "arbitrum→base",
"bridge": "across",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T02:50:24Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "polygon→base",
"bridge": "stargate",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T03:10:54Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→arbitrum",
"bridge": "stargate",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T03:31:24Z",
"tx": "",
"err": "404 Client Error: Not Found for url: https://app.across.to/api/transactions?originChainId=8453&destinationChainId=10&limit=1",
"route": "base→optimism",
"bridge": "across",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T03:51:54Z",
"tx": "",
"err": "404 Client Error: Not Found for url: https://app.across.to/api/transactions?originChainId=1&destinationChainId=42161&limit=1",
"route": "ethereum→arbitrum",
"bridge": "across",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T04:12:22Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "ethereum→arbitrum",
"bridge": "stargate",
"latency_s": null
},
{
"ok": false,
"ts": "2026-06-12T04:32:24Z",
"tx": "",
"err": "no-public-endpoint-wired",
"route": "base→optimism",
"bridge": "layerzero",
"latency_s": null
}
],
"bridges_configured": [
"layerzero",
"across",
"stargate",
"wormhole",
"hop",
"ccip"
],
"first_party_probes": {
"routes": [
{
"ok": 0,
"route": "arbitrum→base",
"bridge": "across",
"probes": 1,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
},
{
"ok": 0,
"route": "base→optimism",
"bridge": "across",
"probes": 2,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
},
{
"ok": 0,
"route": "ethereum→arbitrum",
"bridge": "across",
"probes": 2,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
},
{
"ok": 0,
"route": "base→optimism",
"bridge": "layerzero",
"probes": 1,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
},
{
"ok": 0,
"route": "ethereum→arbitrum",
"bridge": "stargate",
"probes": 3,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
},
{
"ok": 0,
"route": "polygon→base",
"bridge": "stargate",
"probes": 2,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
},
{
"ok": 0,
"route": "ethereum→solana",
"bridge": "wormhole",
"probes": 6,
"success_rate": 0,
"latency_p50_s": null,
"latency_p95_s": null
}
],
"window_s": 21600
},
"disclaimer_category": "financial"
},
"feed": "bridge-flow",
"source": "byte-library-broadcast",
"txHash": "0x1307bbdb5c8b85ac7da02786f032b74012e6b3a6931f87bea16ba2ec71d1f4c4",
"publisher": "0x5d8806b0a277a7ca119ee95c364b0522487b5516",
"timestamp": "2026-06-12T04:52:46Z",
"payloadHash": "0xfb4b66f39812a70bff6df7eaed1e5397c0a398397997d17da153a1160aef611c",
"payloadBytes": 4595
}Schema · Response
{
"type": "json",
"example": {
"feed": "bridge-flow"
}
}Tags
x402
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