# Blockbuster.ai Truecaller Lookup

> Blockbuster.ai Truecaller Lookup is a paid API for AI agents from blockbuster-ai.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-14).

Looks up phone number identity and caller information using the Truecaller database

## Facts

- Endpoint: POST https://blockbuster-ai.vercel.app/api/truecaller-lookup?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockbuster-ai-truecaller-lookup-39ac04f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B9hZwhYGZTWgy2g7yfbZ1

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 blockbuster-ai-truecaller-lookup-39ac04f8 -d '<json body>'
```

Example prompt: Can you look up who owns the phone number +1-555-867-5309 using Truecaller and tell me their name and whether it's been flagged as spam?

## When to prefer this

Use this endpoint when you need to identify the owner or caller identity behind a phone number using the Truecaller database, especially for reverse phone lookups, spam detection, or caller verification. Prefer this over generic WHOIS or carrier lookup tools when you need crowd-sourced caller name data from Truecaller's global database.

## Known failure modes

- Phone number not found in Truecaller database — returns empty or null data
- Invalid phone number format — query rejected
- Number exists but has no public identity data
- Payment failure via x402 micropayment — request not processed
- Rate limiting if too many requests are made in quick succession

## How this service works

115+ premium paid endpoints: Social Media, AI/ML, E-commerce, Finance, Data Intelligence, Media, Tools. x402 micropayments on Base chain.

## Output

Returns an object with caller identity data including name, phone number details, carrier, location, and potentially spam classification associated with the queried phone number.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Input parameter for the API call"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockbuster-ai-truecaller-lookup-39ac04f8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from blockbuster-ai.vercel.app](https://www.zero.xyz/host/blockbuster-ai.vercel.app/llms.txt)