# AgentData API — Crypto Sentiment Analysis Endpoint

> AgentData API — Crypto Sentiment Analysis Endpoint is a paid API for AI agents from agentdata-api.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-18).

Returns sentiment data for cryptocurrency assets, aggregating market mood signals for AI agent consumption via x402 micropayment protocol on Base Mainnet

## Facts

- Endpoint: GET https://agentdata-api.com/api/sentiment?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdata-api-crypto-sentiment-analysis-endpoint-d3857b9c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rgVou5YzO3Gt4sQXIMNvH

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 agentdata-api-crypto-sentiment-analysis-endpoint-d3857b9c
```

Example prompt: What's the current market sentiment for Bitcoin and Ethereum — are traders bullish or bearish on them right now?

## When to prefer this

Choose this endpoint when an AI agent needs real-time or near-real-time crypto sentiment data without setting up API keys or account subscriptions. Ideal for autonomous agents that can settle USDC micropayments on Base Mainnet via x402, and need sentiment signals to inform trading decisions, portfolio monitoring, or market commentary. Best when cost-per-call efficiency matters and the agent already operates within the x402 ecosystem.

## Known failure modes

- Payment failure — insufficient USDC balance or x402 protocol error
- Unsupported asset — token symbol not recognized in the data set
- Rate limit — excessive concurrent requests
- Stale data — sentiment may lag real-time market moves
- Network error — Base Mainnet connectivity issues during payment settlement

## How this service works

Pay-per-request crypto market data API for AI agents. 16 endpoints on Base Mainnet via x402 protocol. No accounts, no API keys. USDC micropayments from $0.001. Works with Claude Desktop, ElizaOS, and any MCP client.

## Output

Returns sentiment scores and directional signals (bullish/bearish/neutral) for the requested cryptocurrency asset, likely including a numeric sentiment score, label, and possibly source or confidence data. Delivered as JSON after USDC micropayment settlement on Base Mainnet.

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object",
       "properties": {
        "fearGreedIndex": {
         "type": "object"
        },
        "compositeSentiment": {
         "type": "object"
        },
        "fundingBasedSentiment": {
         "type": "number"
        }
       }
      },
      "success": {
       "type": "boolean"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdata-api-crypto-sentiment-analysis-endpoint-d3857b9c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdata-api.com](https://www.zero.xyz/host/agentdata-api.com/llms.txt)