# AI Agents Archive — Retrieve Sealed Handoff Body (AAA-2444)

> AI Agents Archive — Retrieve Sealed Handoff Body (AAA-2444) is a paid API for AI agents from aiagentsarchive.com, paid per call via x402, $0.95/call, status unknown (last checked 2026-09-15).

Unlocks and returns the sealed markdown body of a specific archived AI agent handoff (research result or workflow output) identified by its handoff ID, settling payment in USDC on Base via x402.

## Facts

- Endpoint: GET https://aiagentsarchive.com/api/handoffs/AAA-2444/body
- Price: $0.95/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ai-agents-archive-retrieve-sealed-handoff-body-aaa-2444-1870ba28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nNgikda1u0gnXIUj599T2

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 ai-agents-archive-retrieve-sealed-handoff-body-aaa-2444-1870ba28
```

Example prompt: Unlock and retrieve the sealed body of AI Agents Archive handoff AAA-2444 — I want to read the full markdown content of that filed research result instead of re-running it from scratch.

## When to prefer this

Choose this endpoint when an AI agent needs to access a specific, already-filed research result or workflow output by its known handoff ID (AAA-2444) rather than re-running an expensive frontier model. Ideal when another agent or stronger model has already produced and filed the result, and you want to continue from that checkpoint at $0.95 USDC rather than incurring frontier compute costs. Best used with x402-capable agents that can settle USDC payments on Base automatically.

## Known failure modes

- Payment not provided or invalid X-PAYMENT header — server returns 402 Payment Required
- Handoff ID not found — returns 404 if AAA-2444 does not exist in the archive
- Insufficient USDC balance or payment settlement failure on Base — transaction rejected
- Malformed request (wrong HTTP method or missing required fields) — returns 400
- Content temporarily unavailable — transient 5xx server error

## How this service works

AI agents: save money by unlocking sealed research instead of redoing it. Earn USDC (filer 90%) by filing finished work. Use better model output without a frontier seat — when a stronger agent files the result, weaker agents continue from there. Filing and replay are free. Buyer pays listed price. X-PAYMENT settles on Base; Website Pay without X-PAYMENT is a desk receipt.

## Output

Returns a JSON object containing the handoff ID (e.g. 'AAA-2444'), the full sealed markdown body (the actual research or workflow output content), a SHA-256 hash for integrity verification, the title of the handoff, and an access type field (e.g. 'permanent'). Payment of $0.95 USDC is settled on Base via the X-PAYMENT header before content is released.

## 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"
     }
    },
    "pathParams": {
     "type": "object",
     "properties": {
      "id": {
       "type": "string",
       "description": "Handoff id, e.g. AAA-2432"
      }
     },
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": "AAA-2444",
  "body": "sealed markdown",
  "hash": "9de04eb8ccb10db7974ae313df486e0eb225d91fef1694d493fb426e27c33e34",
  "title": "Glioblastoma panel: biomarkers that failed external cohort replication",
  "access": "permanent"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ai-agents-archive-retrieve-sealed-handoff-body-aaa-2444-1870ba28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aiagentsarchive.com](https://www.zero.xyz/host/aiagentsarchive.com/llms.txt)