# Soren Gas Price & Base Fee Reader

> Soren Gas Price & Base Fee Reader is a paid API for AI agents from soren.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns the current gas price and base fee live from Base mainnet, paid per successful read via x402 micropayment.

## Facts

- Endpoint: GET https://soren.com/v1/chain/gas
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/soren-gas-price-base-fee-reader-b19647e8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_k5BoqmjGAQ5fC0_JVViuD

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 soren-gas-price-base-fee-reader-b19647e8
```

Example prompt: What's the current gas price and base fee on Base mainnet right now?

## When to prefer this

Choose this endpoint when you need a fast, cheap, real-time gas price and base fee from Base mainnet without setting up an API key or account. Ideal for agents making transaction cost estimates, DeFi bots evaluating execution windows, or dashboards polling live fee data. If you need a cryptographically attested/signed result, use /v1/oracle/onchain instead.

## Known failure modes

- RPC node unavailable or Base mainnet unreachable — returns an error with no charge
- Payment not successfully completed via x402 — call is rejected before executing the read
- Invalid request format — returns a 4xx error

## How this service works

Read current gas price and base fee, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.

## Output

Returns the current gas price and base fee as read from Base mainnet at the moment of the call, stamped with the block number they were observed at. Data is unsigned plain JSON; for attested/signed reads use the /v1/oracle/onchain endpoint.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/soren-gas-price-base-fee-reader-b19647e8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from soren.com](https://www.zero.xyz/host/soren.com/llms.txt)