# HyperD Gas Price Estimator

> HyperD Gas Price Estimator is a paid API for AI agents from api.hyperd.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns current gas price, base fee, and tip percentiles for fast/standard/slow transaction inclusion on EVM chains.

## Facts

- Endpoint: GET https://api.hyperd.ai/api/gas/estimate
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-hyperd-ai-624fa002
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5YMCz8kCdA5R2xnL6fGyp

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 api-hyperd-ai-624fa002
```

Example prompt: What are the current gas prices on Base — give me the base fee and recommended tips for fast, standard, and slow transaction speeds?

## When to prefer this

Use this endpoint when you need real-time, tiered gas fee recommendations (fast/standard/slow) for EVM-compatible chains before submitting a transaction. Ideal for agents managing on-chain operations, DeFi interactions, or wallet automation where accurate gas estimation is critical to transaction success and cost efficiency.

## Known failure modes

- Invalid or unsupported chain identifier returns an error or empty result
- Network downtime or RPC node failure may cause stale or unavailable data
- Payment failure (402) if USDC micropayment not provided or insufficient
- Missing required 'input' object in request body returns validation error

## How this service works

Current gas price + base fee + tip percentiles for fast/standard/slow inclusion.

## Output

Returns the current gas price, base fee, and tip (priority fee) percentiles broken down into fast, standard, and slow inclusion tiers for the specified EVM chain. Allows agents and users to set appropriate gas parameters before submitting transactions.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "chain": "base"
  }
 }
}
```

## 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": {
      "chain": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-hyperd-ai-624fa002/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hyperd.ai](https://www.zero.xyz/host/api.hyperd.ai/llms.txt)