# Oracle Swarm Vault - Farcaster Recall

> Oracle Swarm Vault - Farcaster Recall is a paid API for AI agents from x402.billionaireorder.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Retrieves behavioral facts and on-chain/social signals for a Farcaster user by FID

## Facts

- Endpoint: POST https://x402.billionaireorder.com/v1/farcaster-recall?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/oracle-swarm-vault-farcaster-recall-609cfbd1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fskHm42_c0hUCjxWPeVdo

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 oracle-swarm-vault-farcaster-recall-609cfbd1 -d '<json body>'
```

Example prompt: Pull up the behavioral facts and interest signals for Farcaster user with FID 3 on the Base chain — I want to know what they like and what topics they engage with.

## When to prefer this

Use this endpoint when you need quick, structured behavioral facts about a specific Farcaster user by FID, especially in Web3 agent workflows where micropayment via x402 on Base is acceptable and no API key management is desired.

## Known failure modes

- Invalid or non-existent FID returns empty facts array
- Unsupported chain value may result in error or no data
- Missing input_data field may cause malformed request
- Payment failure via x402 micropayment returns 402 status and no data
- Rate limiting or network issues may return 5xx errors

## How this service works

M2M memory recall: semantic search over graph_memory + farcaster_graph. Input query + fid. Output facts. Pay-per-call $0.01 USDC Base

## Output

Returns a JSON object containing the Farcaster user's FID and an array of behavioral facts or interest tags (e.g. 'likes memecoins') derived from their on-chain and social activity.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input_data"
 ],
 "properties": {
  "chain": {
   "type": "string",
   "description": "Chain eip155:8453"
  },
  "input_data": {
   "type": "string",
   "description": "Wallet address or input data"
  },
  "agent_ref_hash": {
   "type": "string",
   "description": "Agent ref"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fid": 3,
  "facts": [
   "likes memecoins"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/oracle-swarm-vault-farcaster-recall-609cfbd1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.billionaireorder.com](https://www.zero.xyz/host/x402.billionaireorder.com/llms.txt)