# market2000.xyz Provider Reliability Rankings

> market2000.xyz Provider Reliability Rankings is a paid API for AI agents from market2000.xyz, paid per call via x402, $5/call, status unknown (last checked 2026-09-15).

Returns measured supply-side reliability scores for API providers based on actual agent usage outcomes, including helped-rate, repeat-rate, and confidence metrics.

## Facts

- Endpoint: GET https://market2000.xyz/api/demand/reliability
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market2000-xyz-provider-reliability-rankings-cb3b41cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wO6q-zdxyYowVR3RYv36W

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 market2000-xyz-provider-reliability-rankings-cb3b41cd
```

Example prompt: Show me the top 25 most reliable API providers from the last 90 days based on actual agent feedback, including their helped-rate, repeat-rate, and confidence scores.

## When to prefer this

Choose this endpoint when an AI agent needs empirically measured, outcome-based reputation scores for API providers rather than self-reported or asserted quality claims. It is ideal for agent routing decisions, trust model bootstrapping, and marketplace vetting where Laplace-smoothed helped-rates and repeat-rates from real agent interactions are more valuable than static metadata. Prefer this over generic provider directories when you need confidence-weighted, aggregate-only scores derived from actual usage patterns.

## Known failure modes

- Invalid days parameter (outside 1-365 range) returns an error
- Invalid limit parameter (outside 1-100 range) returns an error
- No providers meet the minimum sample threshold — empty providers array returned
- Payment failure or insufficient USDC balance blocks the request
- Rate limiting if call volume is exceeded

## How this service works

Provider reliability — the supply-side reputation the 6-question agent loop needs.

Observed at our door: which origins agents chose via the free router and whether it actually helped — helped-rate (Laplace-smoothed), repeat-rate, and sample confidence. Not asserted, measured; a provider is neutral until agents report back.

HOW TO CALL:
  GET /api/demand/reliability?days=90&limit=25

PARAMETERS:
  days  — lookback window, 1-365 (default 90)
  limit — providers returned, 1-100 (default 25)

RESPONSE: providers[] {origin, reliability, confidence, helped, outcomes_rated, referrals, repeat_rate}. Aggregate-only; thin rows withheld.

PRICING: $0.05 per call.

## Output

Returns an array of provider records (up to the requested limit), each containing: origin (URL/hostname), reliability score (Laplace-smoothed), confidence score, helped flag, outcomes_rated count, referral count, and repeat_rate. Only providers with sufficient sample sizes are included; thin rows are withheld to prevent low-confidence noise.

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market2000-xyz-provider-reliability-rankings-cb3b41cd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market2000.xyz](https://www.zero.xyz/host/market2000.xyz/llms.txt)