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The Standard Reserve (TSR) Vault Snapshot History
x402
The Standard Reserve (TSR) Vault Snapshot History is a paid API for AI agents from api.onesource.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).
Returns time-series snapshot history of The Standard Reserve on-chain vault state on Robinhood Chain, including basis, reserve assets, POL metrics, and expansion/contraction data.
Price / call$0.02
Success—
StatusUnknown
How this service works
The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Vault snapshot history. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.
Output
Returns a JSON object containing the current basis, an array of historical vault snapshots (each with timestamp, block number, basis, POL ETH raw, POL STD raw, gold reserve raw, expansion ETH raw, contraction ETH raw, buyback tick capacity ETH raw), plus metadata including network name, chain ID, lag blocks, as-of block, and serving state.
Example use cases
Monitor TSR basis drift over time
“Show me how The Standard Reserve's vault basis has changed over the last 48 hours on Robinhood Chain — I want to see if there's been any significant drift.”
Audit reserve asset composition history
“Fetch the last 12 hours of vault snapshots from The Standard Reserve protocol so I can see how gold reserve holdings and POL ETH have fluctuated.”
Track expansion and contraction activity
“Get me the TSR vault history for the past 6 hours — specifically I want to review the expansion ETH, contraction ETH, and buyback tick capacity values across snapshots.”
Technical details
Endpoint
GEThttps://api.onesource.io/standard/v1/vaults/history?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need time-series historical data on The Standard Reserve vault state on Robinhood Chain, including how basis, POL, reserve assets, and expansion/contraction metrics have evolved over a specified number of hours. Prefer this over a current-state snapshot endpoint when trend analysis, auditing, or historical comparison is needed.
Side effects
- Invalid or missing 'hours' parameter (must be integer >= 1) returns a validation error
- Payment failure via x402 protocol results in 402 response blocking access
- No historical data available for the requested time window returns empty history array
- Robinhood Chain node lag may cause stale or delayed snapshot data
- Serving state may indicate degraded or offline protocol state
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"basis": "vault_history",
"history": [
{
"ts": "2026-09-14T12:00:00Z",
"basis": "measured",
"block": 63400000,
"pol_eth_raw": null,
"pol_std_raw": null,
"reserve_assets": {
"gold_raw": null
},
"expansion_eth_raw": "18000000000000000000",
"contraction_eth_raw": "9000000000000000000",
"buyback_tick_capacity_eth_raw": "500000000000000000"
}
],
"network": "robinhood",
"chain_id": 4663,
"lag_blocks": 5,
"as_of_block": 63499000,
"serving_state": "fresh"
}
}Tags
x402
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