# Synapse API — Superseed Token Transfers

> Synapse API — Superseed Token Transfers 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 2026-09-13).

Retrieves token transfer history for a given owner address on the Superseed blockchain network, with filtering by block range, contract, and pagination support.

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/superseed/token/transfers
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-superseed-token-transfers-a36dacd2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hhsq9O7bmqcvnHEJnVpZW

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-superseed-token-transfers-a36dacd2 -d '<json body>'
```

Example prompt: Pull all token transfers for wallet 0xAbC123... on the Superseed network, sorted in descending order, limit to 100 results, and only include transfers involving contract 0xDef456....

## When to prefer this

Use this endpoint when you need on-chain token transfer history specifically for the Superseed blockchain network. Prefer it over generic blockchain explorers when you need programmatic, filterable, paginated access to transfer events for a specific wallet or set of contracts on Superseed.

## Known failure modes

- Invalid owner address format returns an error
- Unrecognized contract addresses yield empty results
- Invalid block range (fromBlock > toBlock) may return error or empty set
- Expired or invalid pageKey causes pagination failure
- Exceeding maxCount limits may be capped silently
- Network unavailability returns a 5xx error

## 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

Returns a list of token transfer events for the specified owner on the Superseed blockchain, each containing transfer details such as sender, recipient, token contract, amount, block number, and transaction hash. Supports pagination via a page key for large result sets.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "order": {
   "enum": [
    "asc",
    "desc"
   ],
   "type": "string"
  },
  "owner": {
   "type": "string"
  },
  "pageKey": {
   "type": "string"
  },
  "toBlock": {
   "type": "string"
  },
  "maxCount": {
   "type": "number"
  },
  "fromBlock": {
   "type": "string"
  },
  "contractAddresses": {
   "type": "array",
   "items": {
    "type": "string"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-api-superseed-token-transfers-a36dacd2/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)