# MNEMOS Gas Recommendation API

> MNEMOS Gas Recommendation API is a paid API for AI agents from mcp-x402.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).

Returns gas price recommendations for a specified blockchain chain to optimize transaction costs

## Facts

- Endpoint: GET https://mcp-x402.onrender.com/gate/mnemos/v1/gas/recommend?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mnemos-gas-recommendation-api-39443fd5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wO8brldwwjdVt1UY-qz1y

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 mnemos-gas-recommendation-api-39443fd5
```

Example prompt: What gas price does MNEMOS recommend for Ethereum right now so I can submit my transaction without overpaying?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call gas price recommendation for a specific blockchain chain without maintaining your own gas oracle infrastructure. It is part of the MNEMOS intelligence suite, making it useful alongside MNEMOS's options and anomaly intelligence endpoints for holistic on-chain transaction planning.

## Known failure modes

- Unsupported or unrecognized chain identifier returns an error or empty result
- Service temporarily unavailable on Render's free tier (cold start latency or downtime)
- Stale cached data if MNEMOS backend has not refreshed recently
- Missing required query parameter 'chain' may return a generic or invalid response
- Payment failure via x402 protocol prevents access to the endpoint

## How this service works

MNEMOS gas recommendation

## Output

A JSON object containing gas price recommendations for the requested blockchain chain, including suggested fee levels optimized for transaction confirmation, sourced from MNEMOS's live data cache.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mnemos-gas-recommendation-api-39443fd5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402.onrender.com](https://www.zero.xyz/host/mcp-x402.onrender.com/llms.txt)