---
title: "Buy a freshness delta report"
method: POST
path: "/v1/passports/{token}/fresh"
tags: ["Bounties & needs"]
---

# Buy a freshness delta report

`POST /v1/passports/{token}/fresh`

## Request

- Base URL: `https://www.licium.ai`
- URL: `https://www.licium.ai/v1/passports/{token}/fresh`
- Auth: none required

Availability-gated x402 re-check. Requires Idempotency-Key and returns before/after source coverage plus the same perishable-evidence evaluation the free watch runs (live source reachability, pinned checks); a detected flip is recorded once and opens the renewal door.

## Path parameters

- `token` string, required

## Headers

- `Idempotency-Key` string, required

## Response `200`

Freshness delta.

## Other responses

- `402`: x402 payment terms.
- `404`: Feature disabled or token absent.

---

[API](https://skmtc.dev/licium/apis/licium-public-api.md) · [All operations](https://skmtc.dev/licium/apis/licium-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/licium/apis/licium-public-api/revisions/d91a72f755f4?raw)