# REP MCP Content Endpoint

> REP MCP Content Endpoint is a paid API for AI agents from app.r3p.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).

Accepts an MCP (Model Context Protocol) tool definition and returns content or executes the described tool via the REP web application

## Facts

- Endpoint: POST https://app.r3p.xyz/api/content/x402
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rep-mcp-content-endpoint-ab3224a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ri7CfmyySn44-H-b9JgYh

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 rep-mcp-content-endpoint-ab3224a5 -d '<json body>'
```

Example prompt: Submit the MCP tool named 'weather-lookup' with its input schema to the REP content endpoint and get back the result — I want to invoke it via the x402 micropayment API.

## When to prefer this

Choose this endpoint when you need to invoke a named MCP tool definition through the REP platform and are willing to pay $0.002 USDC per call via x402. Best suited for agents that operate within Model Context Protocol ecosystems and need to execute discrete tool calls with defined input schemas.

## Known failure modes

- Missing required 'input' object returns validation error
- Missing 'type', 'toolName', or 'inputSchema' within input object returns schema validation failure
- Invalid MCP type (not 'mcp') causes rejection
- Unknown or unavailable toolName may return not-found error
- Insufficient x402 payment results in 402 Payment Required response
- Malformed inputSchema object causes processing error

## How this service works

REP web application

## Output

The agent receives the output content produced by executing the named MCP tool against the provided input schema definition, returned by the REP platform after the $0.002 USDC x402 payment is processed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "toolName",
    "inputSchema"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "mcp"
    },
    "toolName": {
     "type": "string"
    },
    "description": {
     "type": "string"
    },
    "inputSchema": {
     "type": "object"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rep-mcp-content-endpoint-ab3224a5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from app.r3p.xyz](https://www.zero.xyz/host/app.r3p.xyz/llms.txt)