# Token Bid-Ask Spread Base-100 Rebase Report

> Token Bid-Ask Spread Base-100 Rebase Report is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).

Computes a Base-100 rebased index of token bid-ask spread observations, normalizing all values relative to a selected base row.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-quote-spread-index?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-bid-ask-spread-base-100-rebase-report-c9fc6846
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UN5-jIThvyculSRTfLLmS

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 token-bid-ask-spread-base-100-rebase-report-c9fc6846 -d '<json body>'
```

Example prompt: I have a series of token bid and ask price snapshots — can you rebase the bid-ask spreads to a Base-100 index anchored to the first observation? Here are four rows: ask 1.02 / bid 0.98, ask 1.122 / bid 1.078, ask 1.02 / bid 0.98, ask 1.122 / bid 1.078, using index 0 as the base.

## When to prefer this

Choose this endpoint when you need a deterministic, normalized view of bid-ask spread movement across a set of token price observations, anchored to a specific baseline row. It is ideal for comparing liquidity conditions across time in a reproducible, index-based format. It is not suited for live market scanning, safety analysis, or trade signal generation.

## Known failure modes

- Fewer than 2 rows supplied — minimum items constraint violated
- base_index out of range — must be between 0 and (number of rows - 1)
- bid price equal to or less than zero — exclusiveMinimum constraint violated
- ask price equal to or less than zero — exclusiveMinimum constraint violated
- More than 200 rows supplied — maxItems constraint violated
- Payment not included or insufficient — x402 payment required
- Malformed row object — extra properties rejected due to additionalProperties: false

## How this service works

Token bid-ask spread — Base-100 rebase report: Base-100 rebase report for Token bid-ask spread. Supplied token observations only. Deterministic calculation or caller-threshold verdict, not a live scan, safety proof or trade recommendation. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded base-100 rebase report report.

## Output

Returns a Base-100 rebased report of the bid-ask spread values across all supplied observations. Each observation's spread is expressed as an index relative to the designated base row (defaulting to index 0), allowing deterministic, normalized comparison of how token spreads have widened or tightened over the supplied sample.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "ask",
     "bid"
    ],
    "properties": {
     "ask": {
      "type": "number",
      "default": 1.02,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "bid": {
      "type": "number",
      "default": 0.98,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "ask": 1.02,
     "bid": 0.98
    },
    {
     "ask": 1.122,
     "bid": 1.078
    },
    {
     "ask": 1.02,
     "bid": 0.98
    },
    {
     "ask": 1.122,
     "bid": 1.078
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "base_index": {
   "type": "integer",
   "default": 0,
   "maximum": 199,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-bid-ask-spread-base-100-rebase-report-c9fc6846/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)