# Arch Tools — Extract Entities

> Arch Tools — Extract Entities is a paid API for AI agents from archtools.dev, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-14).

Extracts named entities (people, organizations, locations, dates, etc.) from a given text string

## Facts

- Endpoint: POST https://archtools.dev/v1/tools/extract-entities
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arch-tools-extract-entities-b400644b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ruxqPfNRV0uxH5QJ3TOMv

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 arch-tools-extract-entities-b400644b -d '<json body>'
```

Example prompt: Can you extract all the named entities — people, organizations, locations, and dates — from this text: 'On January 15, 2024, Apple CEO Tim Cook met with European Union officials in Brussels to discuss antitrust regulations.'

## When to prefer this

Choose this endpoint when you need fast, per-call named entity recognition on unstructured text without setting up your own NLP pipeline. It is particularly useful in agent workflows where text arrives dynamically and needs to be parsed for structured entities before further processing. At $0.015 per call it is cost-effective for moderate volumes. Prefer it over building custom NER when speed of integration matters.

## Known failure modes

- Empty or missing 'text' field returns a validation error
- Extremely long text may time out or be truncated
- Ambiguous or highly colloquial text may result in missed or misclassified entities
- Non-English text may have reduced accuracy or unsupported entity types
- Payment failure via x402/USDC on Base will block the request

## How this service works

Arch Tools — extract-entities

## Output

A JSON object containing the extracted entities found in the input text, including entity values and their types (e.g. PERSON, ORG, GPE, DATE). The exact structure may include entity spans, labels, and confidence scores depending on the service implementation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Text to extract entities from"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arch-tools-extract-entities-b400644b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from archtools.dev](https://www.zero.xyz/host/archtools.dev/llms.txt)