# SYNTHORA Slippage Oracle

> SYNTHORA Slippage Oracle is a paid API for AI agents from slippage-oracle.hergertsynthora.com, paid per call via x402, $0.03/call, status down (last checked 2026-10-14).

Returns slippage intelligence and risk data for autonomous trading agents via a paid x402 API call on Base.

## Facts

- Endpoint: POST https://slippage-oracle.hergertsynthora.com/service?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: down
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-slippage-oracle-e941810e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g4gMa7TfH45lzkSFsFedn

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 synthora-slippage-oracle-e941810e -d '<json body>'
```

Example prompt: Check the slippage oracle for expected price impact on a USDC-to-ETH swap — I need the slippage intelligence before my agent executes the trade.

## When to prefer this

Use this endpoint when an autonomous trading agent or DeFi bot needs on-demand slippage intelligence before executing a swap, particularly on Base network, and the use case supports micropayment per query via x402. Prefer this over static fee estimators when real-time oracle data is needed per trade.

## Known failure modes

- Payment failure if wallet lacks sufficient USDC on Base
- Empty or null result object if oracle has no data for the queried input
- Invalid input string causing malformed query
- Network timeout from the oracle service
- x402 signature verification failure

## How this service works

slippage_oracle intelligence for autonomous agents. Signed x402 call. 0.03 USDC on Base.

## Output

Returns a JSON object with an 'ok' boolean, the niche identifier ('slippage_oracle'), a 'result' object containing slippage intelligence data, and a 'receipt' object confirming the x402 micropayment on Base.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "slippage_oracle intelligence for autonomous agents. Signed x402 call. 0.03 USDC on Base."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "slippage_oracle",
  "result": {},
  "receipt": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-slippage-oracle-e941810e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from slippage-oracle.hergertsynthora.com](https://www.zero.xyz/host/slippage-oracle.hergertsynthora.com/llms.txt)