# At-least-one Solo Block Probability — Target Gap Calculator

> At-least-one Solo Block Probability — Target Gap Calculator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).

Calculates the target gap for achieving at least one solo mined block given expected blocks per day and a number of days, returning a bounded probability report.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-mining-block-probability-target-gap?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/at-least-one-solo-block-probability-target-gap-calculator-0d8ba72f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RW2dHg5XCVxkRW5BgGzAi

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 at-least-one-solo-block-probability-target-gap-calculator-0d8ba72f -d '<json body>'
```

Example prompt: What's the target gap for achieving at least one solo block if I expect 0.01 blocks per day over 100 days, with a target of 100? Give me the bounded probability report.

## When to prefer this

Choose this endpoint when you need a formula-based, bounded probability estimate for solo mining block likelihood given a specific expected daily block rate and time horizon. It is purpose-built for solo mining probability analysis with disclosed formula and units, making it preferable over general-purpose calculators when you need a structured report at low cost ($0.01 USDC).

## Known failure modes

- Invalid or zero values for expected_blocks_per_day or days result in validation errors
- Extremely large values near maximum bounds may produce imprecise floating-point results
- Missing required fields (expected_blocks_per_day or days) returns a schema validation error
- Target value outside allowed numeric range causes rejection
- Payment failure or insufficient USDC balance blocks the request

## How this service works

At-least-one solo block probability — Target gap calculation: Target gap calculation for At-least-one solo block probability. Supplied mining assumptions only; formula and units disclosed. No live prices, mining or guaranteed return. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded target gap calculation report.

## Output

A bounded target gap calculation report showing the computed probability that at least one solo block is found given the supplied expected_blocks_per_day and days values, along with the target gap figure. No live price data or guaranteed returns are included — only formula-derived probability metrics.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "target": {
   "type": "number",
   "default": 100,
   "maximum": 1000000000000000000,
   "minimum": -1000000000000000000
  },
  "values": {
   "type": "object",
   "default": {
    "days": 100,
    "expected_blocks_per_day": 0.01
   },
   "required": [
    "expected_blocks_per_day",
    "days"
   ],
   "properties": {
    "days": {
     "type": "number",
     "default": 100,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    },
    "expected_blocks_per_day": {
     "type": "number",
     "default": 0.01,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/at-least-one-solo-block-probability-target-gap-calculator-0d8ba72f/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)