# Eva MCP – Crypto & DeFi Research Desk

> Eva MCP – Crypto & DeFi Research Desk is a paid API for AI agents from api.ai.everything.inc, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Answers natural language questions about crypto, DeFi, and global financial markets by running an autonomous AI research agent and returning a plain-text response.

## Facts

- Endpoint: POST https://api.ai.everything.inc/mcp
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eva-mcp-crypto-defi-research-desk-1ad74c76
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OEU9mArgHR9nc5C37i-Bl

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 eva-mcp-crypto-defi-research-desk-1ad74c76 -d '<json body>'
```

Example prompt: Ask Eva to research the current state of Ethereum Layer 2 adoption — I want to understand which rollups are leading in TVL and why, plus any risks I should know about.

## When to prefer this

Choose Eva when you need autonomous, synthesized research answers about crypto tokens, DeFi protocols, blockchain ecosystems, or macro market conditions — especially when you want a narrative explanation rather than raw data. Prefer this over on-chain data APIs when you need interpretation and context, not just numbers. Best suited for due diligence questions, protocol comparisons, regulatory summaries, and market analysis that benefit from an AI research agent aggregating multiple sources into a single coherent answer.

## Known failure modes

- Invalid JSON-RPC structure returns a protocol error
- Malformed or missing 'method' param causes a dispatch failure
- Ambiguous or out-of-scope question may return a low-confidence or generic answer
- Payment failure (x402) prevents the call from executing entirely
- Rate limiting or upstream AI model unavailability may cause timeouts

## How this service works

Ask Eva: the autonomous research desk for crypto, DeFi and global markets, from the Everything.inc ecosystem. One paid call runs the ask tool and returns a plain-text answer.

## Output

A plain-text narrative answer synthesized by the Eva research agent, covering the requested crypto, DeFi, or market topic with relevant analysis, data points, and context. The response is returned as a JSON-RPC 2.0 result containing an array of content objects, each with a 'text' field holding Eva's answer and a 'type' field set to 'text'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id",
  "method",
  "params",
  "jsonrpc"
 ],
 "properties": {
  "id": {
   "type": "integer"
  },
  "method": {
   "type": "string"
  },
  "params": {
   "type": "object"
  },
  "jsonrpc": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "id": {
   "type": "integer"
  },
  "result": {
   "type": "object",
   "properties": {
    "content": {
     "type": "array",
     "items": {
      "type": "object",
      "properties": {
       "text": {
        "type": "string",
        "description": "Eva's plain-text answer."
       },
       "type": {
        "type": "string",
        "const": "text"
       }
      }
     }
    },
    "isError": {
     "type": "boolean"
    }
   }
  },
  "jsonrpc": {
   "type": "string",
   "const": "2.0"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eva-mcp-crypto-defi-research-desk-1ad74c76/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.ai.everything.inc](https://www.zero.xyz/host/api.ai.everything.inc/llms.txt)