# Agent Paywire Updates Feed

> Agent Paywire Updates Feed is a paid API for AI agents from api.agentpaywire.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).

Returns a paginated list of verified updates about AI agent payment protocols and resources, filtered by a since date.

## Facts

- Endpoint: GET https://api.agentpaywire.com/v1/updates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-paywire-updates-feed-b086685a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qtiHCv68akW5R8Jsqiv1Y

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 agent-paywire-updates-feed-b086685a
```

Example prompt: Pull everything Agent Paywire has verified about AI agent payment protocols since January 1, 2026 — I want to see new libraries, articles, or tools that have been added to the feed.

## When to prefer this

Choose this endpoint when you need a curated, machine-verified feed of resources specifically about AI agent payment protocols (stablecoins, x402, L402, machine-to-machine payments). It is ideal for monitoring new additions to the Agent Paywire knowledge base over time using a since-date filter. Prefer this over general web search when you want structured, verified metadata (kind, verified_at, url) rather than raw search results.

## Known failure modes

- Missing 'since' query parameter returns an error — the parameter is required
- Invalid or unparseable date format for 'since' may return a 400 error
- Payment not completed (x402 flow not fulfilled) results in a 402 Payment Required response
- No entries matching the since filter returns an empty entries array with count 0
- Upstream service unavailability may return a 5xx error

## How this service works

Library entries and articles whose verified_at is on or after since (YYYY-MM-DD). One request is 0.01 USDC. An unpaid challenge returns a count and the first three ids and titles. The files on https://agentpaywire.com stay free.

## Output

A JSON object containing: the since date used for filtering, a comparison operator string (e.g. 'verified_at >= since'), a count of matching entries, and an array of entries — each with an id, url, kind (e.g. library, article), title, verified_at date, and date_published date.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "since"
     ],
     "properties": {
      "since": {
       "type": "string",
       "description": "Inclusive lower bound. verified_at is on or after this value. An unpaid 402 returns a count and the first three ids and titles."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "since",
      "comparison",
      "count",
      "entries"
     ],
     "properties": {
      "count": {
       "type": "integer"
      },
      "since": {
       "type": "string"
      },
      "entries": {
       "type": "array"
      },
      "comparison": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 1,
  "since": "2026-10-01",
  "entries": [
   {
    "id": "lightning-labs-l402-for-agents",
    "url": "https://lightning.engineering/posts/2026-03-11-L402-for-agents/",
    "kind": "library",
    "title": "The Future Is Now: Why L402 Is the Internet-Native Payments Protocol for Agents",
    "verified_at": "2026-10-20",
    "date_published": "2026-03-11"
   }
  ],
  "comparison": "verified_at >= since"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-paywire-updates-feed-b086685a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentpaywire.com](https://www.zero.xyz/host/api.agentpaywire.com/llms.txt)