# Tantra Authority — Hard Alone, Soft With Her eBook

> Tantra Authority — Hard Alone, Soft With Her eBook is a paid API for AI agents from api.tantra-authority.com, paid per call via x402, $19.97/call, status unknown (last checked 2026-09-14).

Purchases and delivers access to the 'Hard Alone, Soft With Her' tantra eBook via a one-time USDC micropayment on Base.

## Facts

- Endpoint: GET https://api.tantra-authority.com/api/x402/hard-alone-soft-with-her-b
- Price: $19.97/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tantra-authority-hard-alone-soft-with-her-ebook-2361c8c2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AivX0nn2e90J2bFWCkmso

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 tantra-authority-hard-alone-soft-with-her-ebook-2361c8c2
```

Example prompt: Buy me the 'Hard Alone, Soft With Her' tantra eBook from Tantra Authority — it's $19.97 USDC — and give me the link to access it.

## When to prefer this

Use this endpoint when a user explicitly wants to purchase and access the 'Hard Alone, Soft With Her' eBook from Tantra Authority, paying with USDC on Base via the x402 micropayment protocol. Prefer this over manual checkout flows when the agent is capable of constructing x402-compliant payment headers. Not suitable for browsing or previewing content without purchase.

## Known failure modes

- Insufficient USDC balance — payment fails and no access URL is returned
- Invalid or missing x402 payment header — 402 Payment Required error
- Expired or malformed access token — access URL does not load content
- Network or Base chain congestion causing transaction delay or failure
- Duplicate payment attempt — may result in multiple charges without additional access

## How this service works

Tantra without the mythology. A clean, body-grounded education in what tantra actually is — the breath, sound, movement, touch, and attention practices that produce documented results, stripped of the marketing.

## Output

Returns a JSON object confirming the payment was successful, including the payment rail used (x402-usdc-base), the eBook title, the on-chain transaction hash (txHash), and a time-limited access URL (accessUrl) pointing to the hosted eBook content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "schema": {
     "type": "object"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "rail": "x402-usdc-base",
  "title": "Hard Alone, Soft With Her (eBook)",
  "txHash": "0x…",
  "accessUrl": "https://tantra-authority.com/access.html?token=…"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tantra-authority-hard-alone-soft-with-her-ebook-2361c8c2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tantra-authority.com](https://www.zero.xyz/host/api.tantra-authority.com/llms.txt)