# OneSource TSR Auction Day History

> OneSource TSR Auction Day History is a paid API for AI agents from api.onesource.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-14).

Returns per-day auction history for The Standard Reserve (TSR) license or charter auctions on Robinhood Chain, including prices, sell-through, and timing data.

## Facts

- Endpoint: GET https://api.onesource.io/standard/v1/auctions/days?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/onesource-tsr-auction-day-history-266d7768
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yQeQd21m1qdAr3laIknr9

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability onesource-tsr-auction-day-history-266d7768
```

Example prompt: Pull the last 30 days of TSR license auction history from OneSource — I want to see how many were sold each day, the starting and closing prices, and how long it took to sell out.

## When to prefer this

Use this endpoint when you need historical per-day auction analytics for The Standard Reserve protocol on Robinhood Chain (chain ID 4663), specifically for license or charter auction types. It is the right choice when you want price discovery data (open, floor, close), sell-through rates, sellout timing, or paginated day-by-day history. Prefer this over raw RPC calls when you need structured, pre-aggregated auction metrics rather than raw on-chain event logs.

## Known failure modes

- Missing required 'kind' query parameter returns a 400 or validation error
- Invalid 'kind' value (not 'license' or 'charter') returns an enum validation error
- 'limit' out of range (0 or >500) returns a validation error
- 'before' value referencing a non-existent day returns an empty days array
- Payment failure via x402 / MPP returns a 402 Payment Required response
- Network or RPC node downtime returns a 503 or timeout
- Requesting data for a day before protocol launch returns an empty result

## How this service works

The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Per-day history for the license or charter Dutch auction: open price, floor, close price, and how much sold each day. Fields ending in _raw are 18-decimal integers as strings. Divide by 1e18 to get token amounts.

## Output

Returns an array of auction day objects, each containing the day index, kind (license or charter), units offered and sold, raw prices (start, floor, close), half-life decay seconds, minutes to sellout, relevant timestamps (day start, first sale, last sale, sold-out), and the block number the data was captured at. Also returns top-level metadata: kind, basis, network name, chain ID, and current block.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "kind"
     ],
     "properties": {
      "kind": {
       "enum": [
        "license",
        "charter"
       ],
       "type": "string"
      },
      "limit": {
       "type": "integer",
       "maximum": 500,
       "minimum": 1
      },
      "before": {
       "type": "integer",
       "minimum": 0
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "days": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "day": {
          "type": "integer"
         },
         "kind": {
          "type": "string"
         },
         "sold": {
          "type": "string"
         },
         "basis": {
          "type": "string"
         },
         "offered": {
          "type": "string"
         },
         "as_of_block": {
          "type": "integer"
         },
         "sold_out_ts": {
          "type": "string"
         },
         "day_start_ts": {
          "type": "string"
         },
         "last_sale_ts": {
          "type": "string"
         },
         "first_sale_ts": {
          "type": "string"
         },
         "close_price_raw": {
          "type": "string"
         },
         "half_life_seconds": {
          "type": "string"
         },
         "minutes_to_sellout": {
          "type": "integer"
         },
         "day_floor_price_raw": {
          "type": "string"
         },
         "day_start_price_raw": {
          "type": "string"
         }
        }
       }
      },
      "kind": {
       "type": "string"
      },
      "basis": {
       "type": "string"
      },
      "network": {
       "type": "string"
      },
      "chain_id": {
       "type": "integer"
      },
      "as_of_block": {
       "type": "integer"
      }
     },
     "description": "Endpoint-specific response payload"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "days": [
   {
    "day": 17,
    "kind": "license",
    "sold": "100",
    "basis": "measured",
    "offered": "100",
    "as_of_block": 63499000,
    "sold_out_ts": "2026-09-14T02:10:00Z",
    "day_start_ts": "2026-09-14T00:00:00Z",
    "last_sale_ts": "2026-09-14T02:10:00Z",
    "first_sale_ts": "2026-09-14T00:05:00Z",
    "close_price_raw": "150000000000000000",
    "half_life_seconds": "3600",
    "minutes_to_sellout": 130,
    "day_floor_price_raw": "50000000000000000",
    "day_start_price_raw": "1250000000000000000"
   }
  ],
  "kind": "license",
  "basis": "auction_day_history",
  "network": "robinhood",
  "chain_id": 4663,
  "as_of_block": 63499000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/onesource-tsr-auction-day-history-266d7768/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.onesource.io](https://www.zero.xyz/host/api.onesource.io/llms.txt)