# Agentic Finance Graph — Agent Liveness Check

> Agentic Finance Graph — Agent Liveness Check is a paid API for AI agents from agenticfinancegraph.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Returns an L0–L9 liveness rank for a specific ERC-8004 agent on Base, with evidence including payment history, float, delegation, and counterparty bindings.

## Facts

- Endpoint: GET https://agenticfinancegraph.com/check/liveness?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentic-finance-graph-agent-liveness-check-481a86fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KKIwEiTRVqvZ-DpGTvj_x

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 agentic-finance-graph-agent-liveness-check-481a86fb
```

Example prompt: What's the liveness rank of the ERC-8004 agent with slug 8004-base-53008 on the Agentic Finance Graph — and show me the evidence behind the score?

## When to prefer this

Use this endpoint when you need to assess the financial liveness and payment credibility of a specific ERC-8004 agent on Base. It is the authoritative source for L0–L9 liveness rankings backed by on-chain payment evidence. Prefer this over generic blockchain explorers when you need structured agent-centric scoring rather than raw transaction data.

## Known failure modes

- 404 returned if the agent has never been observed paying a counterparty (rank below L7 or no payment history at all)
- Invalid or unrecognized token ID, slug, or wallet address returns an error
- Malformed id parameter causes a 400-class error
- Payment required (402) if the x402 USDC micropayment is not included or insufficient

## How this service works

Liveness card: L0–L9 rank with the evidence behind it: bindings, first and last observed payment, float, delegation. No raw keys. About one ERC-8004 agent on Base, by Agentic Finance Graph. id = token id, slug or bound wallet; an agent never seen paying is a 404 before any payment.

## Output

A JSON object containing the agent's liveness rank (L0–L9), the meaning of that rank (e.g. 'L9: L8 and three or more distinct counterparties in 30 days'), a timestamp of when the check was performed, and the agent's unique identifier. A 404 is returned if the agent has never been observed making a payment.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "ERC-8004 token id on Base (53008), slug (8004-base-53008) or the agent's bound wallet 0x…. Only agents observed paying a counterparty (rank L7+) have a record; anything else is a 404 before payment."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "id": "act_8453_53008",
  "as_of": "2026-09-26T12:46:22Z",
  "check": "check.liveness",
  "liveness": 9,
  "rank_meaning": "L9: L8 and three or more distinct counterparties in 30 days"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentic-finance-graph-agent-liveness-check-481a86fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenticfinancegraph.com](https://www.zero.xyz/host/agenticfinancegraph.com/llms.txt)