# Token Liquidity Relative Change — Local Finite-Change Elasticity

> Token Liquidity Relative Change — Local Finite-Change Elasticity is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Computes the local finite-change elasticity of a token's liquidity relative change given current and previous liquidity values and a step size.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-liquidity-change-elasticity?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-liquidity-relative-change-local-finite-change-elasticity-b36d1934
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1vuLu06WtvOEenBUSqyox

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-liquidity-relative-change-local-finite-change-elasticity-b36d1934 -d '<json body>'
```

Example prompt: Calculate the local finite-change elasticity of token liquidity where the current liquidity is 150000 and the previous liquidity was 120000, using a step size of 0.5%.

## When to prefer this

Choose this endpoint when you need a deterministic, mathematically defined local finite-change elasticity metric for token liquidity change — specifically when you have explicit current and previous liquidity observations and want a bounded, reproducible sensitivity calculation rather than a live market scan or heuristic score.

## Known failure modes

- current_liquidity or previous_liquidity set to zero or negative (schema enforces exclusiveMinimum: 0)
- step_percent outside allowed range of 0.01–10 causes validation error
- Missing required baseline fields returns a schema validation error
- Values exceeding the maximum (1e16) will be rejected
- Payment not included or insufficient USDC results in 402 response

## How this service works

Token liquidity relative change — Local finite-change elasticity: Local finite-change elasticity for Token liquidity relative change. 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 local finite-change elasticity report.

## Output

Returns a bounded local finite-change elasticity report for the token's liquidity relative change, based on the supplied current and previous liquidity observations and the specified step percentage. The report is deterministic and may include a threshold-based verdict. No live scan or trade recommendation is provided.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "field": {
   "enum": [
    "current_liquidity",
    "previous_liquidity"
   ],
   "type": "string",
   "default": "current_liquidity"
  },
  "baseline": {
   "type": "object",
   "default": {
    "current_liquidity": 120000,
    "previous_liquidity": 100000
   },
   "required": [
    "current_liquidity",
    "previous_liquidity"
   ],
   "properties": {
    "current_liquidity": {
     "type": "number",
     "default": 120000,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    },
    "previous_liquidity": {
     "type": "number",
     "default": 100000,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "step_percent": {
   "type": "number",
   "default": 1,
   "maximum": 10,
   "minimum": 0.01
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-liquidity-relative-change-local-finite-change-elasticity-b36d1934/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)