# TensorFeed Model Deprecation Timeline

> TensorFeed Model Deprecation Timeline is a paid API for AI agents from tensorfeed.ai, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns a deprecation timeline for AI models enriched with urgency bands, days until/since sunset, and resolved migration chains to active replacements.

## Facts

- Endpoint: GET https://tensorfeed.ai/api/premium/model-deprecations/timeline
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tensorfeed-ai-ac0ca967
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h-9GVY1xCbX_JgCX_cFAl

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 tensorfeed-ai-ac0ca967
```

Example prompt: Can you check if any of the models I'm using are being deprecated soon — specifically look within the next 60 days for OpenAI models — and tell me what I should migrate to, including the full migration chain to the first still-active replacement?

## When to prefer this

Use this endpoint when you need to proactively identify deprecated or soon-to-be-deprecated AI models and resolve migration paths to active replacements. It is the definitive call for answering 'is my model affected and what do I migrate to', especially when you need urgency classification and multi-hop migration chain resolution in a single call.

## Known failure modes

- No models found matching the provider filter — returns empty list
- Invalid within_days value returns a 400 validation error
- Provider name not recognized returns empty or error response
- Payment failure (x402) blocks access to premium endpoint
- Stale data if deprecation announcements have not been ingested yet

## How this service works

Model deprecation timeline with migration intelligence. Each entry enriched with urgency_band (within_7d / within_30d / within_60d / within_90d / past), days_until_sunset, days_since_sunset, and a resolved migration_chain hop sequence to the first still-active replacement. Optional within_days window centered on now; optional provider filter. The "is my model affected and what should I migrate to" call.

## Output

A list of deprecated or soon-to-be-deprecated AI model entries, each enriched with: urgency_band (within_7d / within_30d / within_60d / within_90d / past), days_until_sunset or days_since_sunset, and a resolved migration_chain showing the hop sequence from the deprecated model to the first currently active replacement model.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "provider": {
       "type": "string",
       "description": "Case-insensitive substring match against provider (OpenAI, Anthropic, Google, Cohere, ...)."
      },
      "within_days": {
       "type": "integer",
       "maximum": 730,
       "minimum": 7,
       "description": "Window centered on now in days. Entries are included when |days_until_sunset| <= within_days. Omit for full registry."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tensorfeed-ai-ac0ca967/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tensorfeed.ai](https://www.zero.xyz/host/tensorfeed.ai/llms.txt)