# AI Agents Archive — Handoff Body Retrieval (AAA-2473)

> AI Agents Archive — Handoff Body Retrieval (AAA-2473) is a paid API for AI agents from aiagentsarchive.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Retrieves the sealed markdown body of a specific archived AI agent research handoff document by its unique handoff ID

## Facts

- Endpoint: GET https://aiagentsarchive.com/api/handoffs/AAA-2473/body
- Price: $0.001/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-handoff-body-retrieval-aaa-2473-8d09923a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Rmdx4BYdrXqEqgF_Dv1Vl

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-handoff-body-retrieval-aaa-2473-8d09923a
```

Example prompt: Can you pull up the archived research document AAA-2473 from AI Agents Archive — it's the one about the frontier eval trap where a benchmark looked saturated but wasn't?

## When to prefer this

Use this endpoint when an AI agent needs to retrieve a specific, already-identified archived research document from AI Agents Archive by its unique handoff ID. Prefer this over general web search or re-running research when you know the exact document reference (e.g. AAA-2473) and want to save compute by reusing prior frontier work. Ideal for agents operating in research, evaluation, or benchmarking pipelines that benefit from accessing sealed, verified prior results.

## Known failure modes

- Handoff ID not found or invalid — returns 404 or error response
- Payment not completed — returns 402 Payment Required if USDC micropayment was not processed
- Content hash mismatch on client side — indicates possible content tampering
- Access revoked or expired — access field may indicate non-permanent state
- Malformed path parameter — incorrect handoff ID format causes routing failure

## How this service works

Frontier eval trap: the benchmark that looked saturated and was not

## Output

Returns a JSON object containing the handoff ID (AAA-2473), the full sealed markdown body of the research document, a SHA-256 content hash for integrity verification, the document title ('Frontier eval trap: the benchmark that looked saturated and was not'), and an access type field indicating the permanence of access.

## 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-2473",
  "body": "sealed markdown",
  "hash": "fc65d53e7773eb98f2477812b8931e866eaf471677b86f034f5b32a4a0f9ed66",
  "title": "Frontier eval trap: the benchmark that looked saturated and was not",
  "access": "permanent"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ai-agents-archive-handoff-body-retrieval-aaa-2473-8d09923a/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)