# Animica x402 Endpoint Reliability Report

> Animica x402 Endpoint Reliability Report is a paid API for AI agents from animica.dev, paid per call via x402, $0.0018/call, status unknown (last checked 2026-09-15).

Returns Animica's own observed probe results for a given x402 endpoint: whether it responded correctly to an unpaid 402 probe, what payment terms it advertised, and whether a callable spec is available — optionally attested with ML-DSA-65.

## Facts

- Endpoint: POST https://animica.dev/x402/market/reliability
- Price: $0.0018/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/animica-x402-endpoint-reliability-report-7d371d5c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hVkrPEqfhybZBGBUjt9H0

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 animica-x402-endpoint-reliability-report-7d371d5c -d '<json body>'
```

Example prompt: Before I pay it, check what Animica observed when it probed https://api.example.com/x402/data — did it get a valid 402 back, and does a call spec exist? Give me the attested version.

## When to prefer this

Use this endpoint when an AI agent needs to validate an unfamiliar x402 endpoint before committing a payment, especially when operating autonomously and wanting to avoid wasting funds on broken or fraudulent endpoints. Prefer this over blindly calling the target endpoint when you need independent third-party evidence of the endpoint's 402 behavior, actual payment terms, or spec availability. The optional ML-DSA-65 attestation makes it ideal for compliance, auditing, or multi-agent trust scenarios where cryptographic proof of endpoint state at a specific chain height is required.

## Known failure modes

- URL not in Animica's probe database — returns observed:false, no charge applied
- Attestation requested but cannot be produced — call fails and no charge is made
- Invalid or non-HTTP(S) URL provided — validation error returned
- Malformed request body — schema validation error
- Transient node unavailability — service error response

## How this service works

Before you pay an x402 endpoint you have never called, buy what we observed when WE called it: the outcome of our own unpaid probe, when we ran it, whether it answered a correct 402 with readable payment terms, and whether it publishes a call spec you can build a request from. Never probed returns observed:false — an honest unknown, never an invented uptime figure. Optional ML-DSA-65 attestation. If we hold no record of the URL at all, you are not charged.

## Output

Returns Animica's stored observation for the queried x402 URL: whether a probe was ever run (observed: true/false), whether the endpoint returned a well-formed 402, the payment terms it advertised, and whether a machine-readable call spec is available. If 'attest' is true, the entire observation is wrapped in an ML-DSA-65 signed envelope (scheme 4099) bound to an Animica chain height, verifiable offline. If Animica holds no record of the URL, the call is free and the response indicates an honest unknown.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "attest": {
   "type": "boolean",
   "description": "return the observation inside an ML-DSA-65 signed envelope (scheme 4099) bound to an Animica chain height, verifiable offline (default false). If it cannot be produced, the call fails and you are not charged."
  },
  "resource": {
   "type": "string",
   "description": "the absolute http(s) URL of the x402 endpoint to report on, e.g. https://api.example.com/x402/thing"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/animica-x402-endpoint-reliability-report-7d371d5c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from animica.dev](https://www.zero.xyz/host/animica.dev/llms.txt)