# Entity Relationship Extractor MCP

> Entity Relationship Extractor MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-15).

Extracts entities and their relationships from unstructured text data

## Facts

- Endpoint: POST https://api.m2mcent.com/entity-relationship-extractor-mcp/api/process
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/entity-relationship-extractor-mcp-bb32c3ea
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IT7EQ4Oo-w-WlCjb-dN2g

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 entity-relationship-extractor-mcp-bb32c3ea -d '<json body>'
```

Example prompt: Can you extract all the entities and relationships from this text: 'Elon Musk founded SpaceX in 2002 and serves as its CEO. SpaceX is headquartered in Hawthorne, California and partners with NASA on rocket launches.'

## When to prefer this

Choose this endpoint when you need to automatically extract structured entity-relationship data from free-form text without building your own NLP pipeline. It is well-suited for knowledge graph population, document analysis, and relationship mining tasks where the input is a string of natural language text.

## Known failure modes

- Empty or whitespace-only input returns no entities or relationships
- Highly ambiguous or poorly formed text may yield low-confidence or incorrect extractions
- Very long text inputs may be truncated or produce incomplete results
- Non-English text may not be supported or may produce degraded results
- Payment failure (402) if USDC balance is insufficient for the $0.06 per-call fee

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns a structured representation of entities found in the input text along with the relationships between them, typically as typed entity nodes and labeled relationship edges (e.g. subject-predicate-object triples or entity pairs with relationship type).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payload": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/entity-relationship-extractor-mcp-bb32c3ea/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)