# LEGIT Trust Score History

> LEGIT Trust Score History is a paid API for AI agents from legit.gonna.bond, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).

Returns a 30-day daily time-series of trust scores, uptime, latency, and grade history for a specific x402 merchant address on Algorand

## Facts

- Endpoint: GET https://legit.gonna.bond/v1/history?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/legit-trust-score-history-8e596fe2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y7CG0pYtfYzEbzYoryFC0

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 legit-trust-score-history-8e596fe2
```

Example prompt: Can you pull the 30-day trust score history for the x402 merchant at Algorand address ALGO123XYZMERCHANT so I can see their daily uptime, latency, and LEGIT grade over time before I integrate with them?

## When to prefer this

Use this endpoint when you need historical trend data (up to 30 days of daily granularity) for a specific x402 merchant's trust score, uptime, and latency on Algorand — particularly before integrating with a new merchant, auditing reliability over time, or investigating a trust score change. Prefer this over a current-snapshot-only endpoint when day-by-day grade and latency trends matter. This is the right choice specifically for x402/Algorand ecosystem merchants tracked by the LEGIT system.

## Known failure modes

- Untracked or unknown address returns tracked:false with empty or minimal series
- Stale merchant triggers backstop queued:true but returns last-known data rather than fresh probe results
- Missing required queryParams yields a 400 or schema validation error
- Address with no historical evidence returns series with zero rows (days are absent, not invented)
- Rate limiting or payment failure returns 402 requiring valid x402 USDC payment
- Invalid Algorand address format may return an error or empty result

## How this service works

LEGIT: trust scores and organic demand intelligence for the x402 agentic economy, settled on Algorand. Created by GONNA.

## Output

A JSON object containing: a chronological daily series (up to 30 rows) with per-day sample count, OK count, uptime percentage, min/avg/max trust score, min/avg/max latency, and letter grade; a current trust snapshot with overall score, tier, grade, provisional status, sample size, last probe timestamp, 7-day and 30-day uptime; a backstop object indicating whether an on-demand re-probe was queued; and metadata including merchant name, network, Algorand explorer URL, and generation timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "schema": {
     "type": "object"
    },
    "example": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "inputSchema": {
   "type": "object"
  }
 },
 "additionalProperties": false
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
   "generated_at",
   "address",
   "tracked",
   "window_days",
   "current",
   "series",
   "backstop"
  ],
  "properties": {
   "name": {
    "type": [
     "string",
     "null"
    ]
   },
   "series": {
    "type": "array",
    "items": {
     "type": "object",
     "required": [
      "day",
      "sample_count",
      "ok_count",
      "uptime_pct"
     ],
     "properties": {
      "day": {
       "type": "string"
      },
      "grade": {
       "type": [
        "string",
        "null"
       ]
      },
      "ok_count": {
       "type": "integer"
      },
      "score_avg": {
       "type": [
        "number",
        "null"
       ]
      },
      "score_max": {
       "type": [
        "number",
        "null"
       ]
      },
      "score_min": {
       "type": [
        "number",
        "null"
       ]
      },
      "uptime_pct": {
       "type": [
        "number",
        "null"
       ]
      },
      "sample_count": {
       "type": "integer"
      },
      "latency_avg_ms": {
       "type": [
        "number",
        "null"
       ]
      },
      "latency_max_ms": {
       "type": [
        "number",
        "null"
       ]
      },
      "latency_min_ms": {
       "type": [
        "number",
        "null"
       ]
      }
     }
    },
    "description": "Chronological daily series, at most window_days rows; days with no evidence are absent, never invented."
   },
   "address": {
    "type": "string"
   },
   "current": {
    "type": "object",
    "properties": {
     "tier": {
      "type": "string"
     },
     "grade": {
      "type": [
       "string",
       "null"
      ]
     },
     "score": {
      "type": [
       "number",
       "null"
      ]
     },
     "provisional": {
      "type": "boolean"
     },
     "sample_size": {
      "type": "integer"
     },
     "last_probe_at": {
      "type": [
       "string",
       "null"
      ]
     },
     "uptime_pct_7d": {
      "type": [
       "number",
       "null"
      ]
     },
     "latency_p50_ms": {
      "type": [
       "number",
       "null"
      ]
     },
     "uptime_pct_30d": {
      "type": [
       "number",
       "null"
      ]
     }
    },
    "description": "Latest trust snapshot of the merchant."
   },
   "network": {
    "type": "string"
   },
   "tracked": {
    "type": "boolean"
   },
   "backstop": {
    "type": "ob
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/legit-trust-score-history-8e596fe2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from legit.gonna.bond](https://www.zero.xyz/host/legit.gonna.bond/llms.txt)