# AgentData API — Crypto Funding Rates

> AgentData API — Crypto Funding Rates 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 current perpetual futures funding rates for crypto assets via pay-per-request USDC micropayment on Base Mainnet

## Facts

- Endpoint: GET https://agentdata-api.com/api/funding-rates?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-funding-rates-cfc134eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9-pkUUzjjiYwv7_3cZez3

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-funding-rates-cfc134eb
```

Example prompt: What's the current funding rate for BTC-USDT perpetual futures — is it positive or negative right now, and which exchanges have the highest rates?

## When to prefer this

Choose this endpoint when an AI agent needs real-time perpetual futures funding rate data without API key registration, paying only per request via USDC micropayment. Ideal for autonomous trading agents, arbitrage bots, or market monitoring agents that need lightweight, accountless access to crypto derivatives data on demand.

## Known failure modes

- 402 Payment Required if USDC payment not attached or insufficient
- Invalid symbol returns 400 error or empty result
- Unsupported exchange or trading pair returns no data
- Network issues on Base Mainnet may delay payment settlement
- Rate limit or abuse detection may block repeated requests

## 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 current funding rate values for requested crypto perpetual contracts, including rate percentage, funding interval, next funding timestamp, and exchange-specific data. Delivered after a $0.001 USDC micropayment via x402 on Base Mainnet — no API key required.

## 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",
       "description": "Map of symbol → { rate, annualized, signal }",
       "additionalProperties": {
        "type": "object",
        "properties": {
         "rate": {
          "type": "number"
         },
         "signal": {
          "enum": [
           "LONGS_PAY",
           "SHORTS_PAY",
           "NEUTRAL"
          ],
          "type": "string"
         },
         "annualized": {
          "type": "string"
         }
        }
       }
      },
      "success": {
       "type": "boolean"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdata-api-crypto-funding-rates-cfc134eb/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)