# Miorail B20 Liquidity Evidence

> Miorail B20 Liquidity Evidence is a paid API for AI agents from miorail.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).

Returns on-chain liquidity evidence and capacity analysis for a Base network token by contract address

## Facts

- Endpoint: GET https://miorail.xyz/api/x402/intelligence/v1/b20/liquidity-evidence?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/miorail-b20-liquidity-evidence-e74c0cba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BuL1aFDsJ9RLMUlLRJ-OQ

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 miorail-b20-liquidity-evidence-e74c0cba
```

Example prompt: Can you pull the on-chain liquidity evidence for the Base token at contract address 0x4200000000000000000000000000000000000006 — I want to see the liquidity sources, capacity, and any missing evidence?

## When to prefer this

Use this endpoint when you need structured, evidence-backed liquidity analysis for a specific Base network token, particularly when evaluating whether a token has verifiable on-chain liquidity sources and sufficient trading capacity. Prefer this over generic DEX screeners when you need a programmatic, agent-callable liquidity proof with explicit missing-evidence flags useful for risk assessment or due diligence workflows.

## Known failure modes

- Invalid or non-existent Base contract address returns empty sources and analysis
- Token with no liquidity on Base returns populated missingEvidence array
- Malformed tokenAddress query parameter causes request rejection
- Payment failure via x402 protocol results in 402 response and no data returned
- Network or RPC issues may cause incomplete source aggregation

## How this service works

Miorail x402 paid resource

## Output

Returns a JSON object containing the service name, an analysis object with liquidity sources (DEX pools, AMMs, etc.) and liquidity capacity metrics, and a missingEvidence array listing any on-chain liquidity signals that could not be found or verified for the given token.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "tokenAddress"
     ],
     "properties": {
      "tokenAddress": {
       "type": "string",
       "description": "Exact Base contract address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "service": "b20_liquidity_evidence",
  "analysis": {
   "sources": [],
   "capacity": {}
  },
  "missingEvidence": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/miorail-b20-liquidity-evidence-e74c0cba/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from miorail.xyz](https://www.zero.xyz/host/miorail.xyz/llms.txt)