# Synapse API — Degen RPC Endpoint

> Synapse API — Degen RPC Endpoint is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Executes JSON-RPC method calls against blockchain networks via a pay-per-call gateway supporting 57+ chains

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/degen/rpc
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-degen-rpc-endpoint-1d549f99
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n0tHyHQLJB-fE8USt585l

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 synapse-api-degen-rpc-endpoint-1d549f99 -d '<json body>'
```

Example prompt: Call eth_getBalance on the Ethereum mainnet for wallet address 0xAbCd...1234 using the Synapse degen RPC endpoint — I need the current balance in wei.

## When to prefer this

Choose this endpoint when you need to make arbitrary JSON-RPC calls against one of 57+ supported blockchain networks on a pay-per-call basis without managing your own node infrastructure. It is ideal for DeFi agents, blockchain data pipelines, or transaction broadcasting workflows that require broad multi-chain coverage with minimal setup.

## Known failure modes

- Invalid or unsupported RPC method name returns an error response
- Malformed params array causes a parse or invalid params error
- Unsupported chain or network returns a routing error
- Payment failure via x402 results in a 402 Payment Required response
- Rate limiting or node unavailability returns a 5xx server error
- Transaction broadcast failure returns an RPC error with revert reason

## How this service works

High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.

## Output

A JSON-RPC response object containing the result field (on-chain data, transaction hash, block info, etc.) or an error object with code and message if the call fails

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "method": {
   "type": "string"
  },
  "params": {
   "type": "array",
   "items": {}
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-api-degen-rpc-endpoint-1d549f99/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from synapse-api-brown.vercel.app](https://www.zero.xyz/host/synapse-api-brown.vercel.app/llms.txt)