# 100BTC Alpha On-Chain Signal Feed

> 100BTC Alpha On-Chain Signal Feed is a paid API for AI agents from vps-fc89c157-1.taila28d02.ts.net:10000, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).

Returns live on-chain swap/buy signals for crypto assets on Base Mainnet, filtered by volume and result count

## Facts

- Endpoint: POST https://vps-fc89c157-1.taila28d02.ts.net:10000/api/alpha?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/100btc-alpha-on-chain-signal-feed-5a86d610
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nDYqgzIkcPn7Mxvd1-dJi

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 100btc-alpha-on-chain-signal-feed-5a86d610 -d '<json body>'
```

Example prompt: Pull the top 10 on-chain swap signals from Base Mainnet right now, but only show me ones where the estimated trade size is at least $500 USD.

## When to prefer this

Use this endpoint when you need real-time, pay-per-call on-chain swap signal intelligence from Base Mainnet without committing to a subscription. It is ideal for AI agents that need live alpha signals on a sporadic basis, filtered by volume significance. Prefer it over general blockchain explorers when you want pre-computed signal strength labels and entity attribution rather than raw transaction data.

## Known failure modes

- Payment failure returns HTTP 402 if x402 payment header is missing or invalid
- Invalid input types (e.g. non-integer limit) may return 400 Bad Request
- No signals matching filters returns an empty signals array
- Server unavailable on the VPS host returns 502/503
- Stale or lagged block data if RPC connection is delayed

## How this service works

Thirty x402 v2 pay-per-call APIs by 100BTC. Listing data is generated from each live HTTP 402 challenge and runtime Bazaar schema.

## Output

A JSON object containing an array of signal objects (each with asset ticker, action type like SWAP_BUY, executing entity name, estimated USD amount, and signal strength label HIGH/MEDIUM/LOW) plus metadata including the data source name and current Base Mainnet block number.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer"
  },
  "min_volume_usd": {
   "type": "number"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "signals": [
   {
    "asset": "VIRTUAL",
    "action": "SWAP_BUY",
    "entity": "Virtuals Top Agent Executor",
    "amount_usd_est": 1250,
    "signal_strength": "HIGH"
   }
  ],
  "metadata": {
   "source": "Base Mainnet Live RPC",
   "current_block": 51860000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/100btc-alpha-on-chain-signal-feed-5a86d610/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vps-fc89c157-1.taila28d02.ts.net:10000](https://www.zero.xyz/host/vps-fc89c157-1.taila28d02.ts.net%3A10000/llms.txt)