# LiquProp API - Sync Property Blockchain Transactions

> LiquProp API - Sync Property Blockchain Transactions is a paid API for AI agents from api.relai.fi, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Synchronizes pending blockchain transactions for a specific property with the chain state

## Facts

- Endpoint: POST https://api.relai.fi/relay/1776502063891/v1/properties/{id}/transactions/sync
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/liquprop-api-bc41afcc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PWRcGpRpJCAVj01aL4CcV

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 liquprop-api-bc41afcc -d '<json body>'
```

Example prompt: Sync up all the pending blockchain transactions for property ID 42 on LiquProp — there are some unconfirmed transactions that need to be reconciled with the chain.

## When to prefer this

Use this endpoint when you have a property on the LiquProp platform with pending or unconfirmed blockchain transactions that need to be reconciled with the actual on-chain state. Particularly useful after network congestion, dropped transactions, or when transaction status is stale. Prefer over manual chain polling.

## Known failure modes

- Property ID not found (404) — the specified property does not exist
- Transactions already synced — no pending transactions to reconcile
- Blockchain node unreachable — chain sync fails due to RPC timeout
- Invalid or malformed property ID in path parameter
- Payment failure — insufficient USDC balance for the $0.01 call fee
- Rate limiting — too many sync requests in a short window

## How this service works

Synchronize pending blockchain transactions with the chain

## Output

Returns the updated status of previously pending blockchain transactions for the given property, confirming which have been synchronized to the chain and their new confirmed states.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/liquprop-api-bc41afcc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relai.fi](https://www.zero.xyz/host/api.relai.fi/llms.txt)