# Saylor Innovations Token Transfer History (Optimism)

> Saylor Innovations Token Transfer History (Optimism) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-03).

Returns the on-chain token transfer history for a given wallet address on the Optimism network

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/optimism/transfers/:address?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-token-transfer-history-optimism-8a0ee68a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tyeOc2LJzKzFovNaErHq9

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 saylor-innovations-token-transfer-history-optimism-8a0ee68a
```

Example prompt: Can you pull the full token transfer history for the Optimism wallet 0x4A3B...dF92 so I can see all the incoming and outgoing token movements on-chain?

## When to prefer this

Choose this endpoint when you specifically need token transfer history on the Optimism Layer 2 network. It is distinct from Base, BSC, or Ethereum mainnet transfer history endpoints offered by the same provider. Prefer this over generic blockchain explorers when you need a programmatic, agent-callable API with per-call micropayment pricing via x402 and no API key setup.

## Known failure modes

- Invalid or malformed wallet address returns an error response
- Address with no transfer history may return an empty list
- Network connectivity issues or Optimism RPC node failures could cause timeouts
- Rate limiting or payment failure (x402) if USDC balance is insufficient
- Newly created addresses with no history return empty results

## How this service works

Token Transfer History (optimism). Optimism token transfer history: ERC-20 and ERC-721 Transfer events for a token, filtered to one wallet (?wallet=, in/out labelled, up to 2,000 blocks) or the latest 20 blocks unfiltered. Decoded amounts, up to 200 rows.

## Output

A list of token transfer events associated with the given Optimism wallet address, each including transaction hash, block number, timestamp, sender address, recipient address, token contract address, and token amount transferred.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-token-transfer-history-optimism-8a0ee68a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)