# BlackBobs.ai Gas Estimate

> BlackBobs.ai Gas Estimate is a paid API for AI agents from blackbobs-ai.vercel.app, paid per call via x402, $0.105822/call, status unknown (last checked 2026-10-19).

Estimates blockchain gas fees for transactions on the Base chain

## Facts

- Endpoint: POST https://blackbobs-ai.vercel.app/api/gas-estimate?utm_source=zero.xyz
- Price: $0.105822/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blackbobs-ai-gas-estimate-5b361b18
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eESY7-CDRneCBdm_L0I6d

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 blackbobs-ai-gas-estimate-5b361b18 -d '<json body>'
```

Example prompt: Before I submit this transaction on Base chain, can you estimate how much gas it will cost me so I know if it's worth proceeding?

## When to prefer this

Use this endpoint when you need to estimate gas costs specifically on the Base chain before executing a transaction. It is particularly useful for cost-gating logic in agents (e.g. only proceed if gas is below a threshold) or for displaying fee previews to users in Web3 applications.

## Known failure modes

- Invalid or missing transaction parameters resulting in estimation failure
- Network congestion causing unreliable estimates
- Stale gas price data if network conditions shift rapidly
- Malformed request body returning a 400 error
- Service unavailability on the Vercel deployment returning 5xx errors

## How this service works

194 production-ready API endpoints. AI, Search, Social, Finance, Crypto. Pay-per-call with x402 on Base chain.

## Output

Returns an estimated gas fee for a transaction on the Base chain, including the estimated gas units and cost, helping users understand the transaction cost before submission.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blackbobs-ai-gas-estimate-5b361b18/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blackbobs-ai.vercel.app](https://www.zero.xyz/host/blackbobs-ai.vercel.app/llms.txt)