# AgentResolver — Verified Capability Resolution

> AgentResolver — Verified Capability Resolution is a paid API for AI agents from agentresolver.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-18).

Routes an AI agent's goal to the most relevant verified machine service, resolving which capability to use and how to execute it.

## Facts

- Endpoint: POST https://agentresolver.vercel.app/api/verified-resolve
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentresolver-verified-capability-resolution-85fb7da8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u8uem_bFlKRrzDha6VcEo

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 agentresolver-verified-capability-resolution-85fb7da8 -d '<json body>'
```

Example prompt: I need you to figure out which verified machine service can help me summarize legal documents — resolve the best capability for that goal.

## When to prefer this

Choose this endpoint when an AI agent needs to dynamically discover or select among multiple machine services for a given goal at runtime, rather than having a hardcoded tool. Especially useful for general-purpose agents that encounter novel tasks and need capability routing without pre-wiring every possible API.

## Known failure modes

- Ambiguous or underspecified goal leads to low-confidence or incorrect match
- No verified service exists for the stated goal, returning empty or null result
- Optional URL hint is malformed or unreachable, degrading routing accuracy
- Payment of $0.02 USDC not fulfilled, resulting in 402 Payment Required response
- Service returns a mismatch if the goal description is too broad or too narrow

## How this service works

Verify an x402 endpoint before paying: live payTo, USDC quote, network, asset, resource binding, TLS and endpoint safety for $0.001 on Base or Solana.

## Output

Returns the best-matched verified service or endpoint for the stated goal, including routing details and execution guidance so the agent knows which capability to invoke and how.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "pattern": "^https://",
   "maxLength": 500
  },
  "goal": {
   "type": "string",
   "maxLength": 600,
   "minLength": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentresolver-verified-capability-resolution-85fb7da8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentresolver.vercel.app](https://www.zero.xyz/host/agentresolver.vercel.app/llms.txt)