# Solana Block Time by Slot

> Solana Block Time by Slot is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Returns the Unix timestamp, ISO 8601 time, and age of the Solana block at a given slot number, with 10-minute caching.

## Facts

- Endpoint: GET https://mintintel.35-171-220-195.sslip.io/v1/sol/block-time/:slot?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/solana-block-time-by-slot-157c3499
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_86KVjIE4jXFHxbUwmJDqo

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 solana-block-time-by-slot-157c3499
```

Example prompt: What time was Solana slot 280000000 produced? I need the Unix timestamp and ISO datetime.

## When to prefer this

Use this endpoint when you need to resolve a specific Solana slot number to a wall-clock timestamp or determine the age of a Solana block. It is ideal for on-chain event auditing, transaction timing verification, or enriching Solana data with human-readable timestamps. Prefer it over self-hosted RPC calls when you want a lightweight, pay-per-call solution without managing Solana node infrastructure. The 10-minute cache makes it efficient for repeated lookups of recently confirmed slots.

## Known failure modes

- 404 returned for skipped slots (validator did not produce a block at that slot) — not charged
- 404 returned for pruned slots (old slots no longer available in RPC history) — not charged
- 404 returned for future slots not yet produced — not charged
- Invalid slot format (non-integer or negative) may result in a 400 or error response
- Network or RPC node unavailability causing 5xx errors

## How this service works

Unix timestamp, ISO time and age of the Solana block at a slot (getBlockTime, cached 10 min). Skipped, pruned or not-yet-produced slots -> 404, not charged.

## Output

Returns a JSON object containing the slot number as an integer, the Unix timestamp (blockTime) as an integer, and the ISO 8601 formatted datetime string (time). If the slot was skipped, pruned, or not yet produced, the endpoint returns a 404 and the call is not charged.

## 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"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "slot"
     ],
     "properties": {
      "slot": {
       "type": "string",
       "description": "non-negative integer slot number"
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "slot",
      "blockTime",
      "time"
     ],
     "properties": {
      "slot": {
       "type": "integer"
      },
      "time": {
       "type": "string"
      },
      "blockTime": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/solana-block-time-by-slot-157c3499/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mintintel.35-171-220-195.sslip.io](https://www.zero.xyz/host/mintintel.35-171-220-195.sslip.io/llms.txt)