# FastX402 Markdown Table Format

> FastX402 Markdown Table Format is a paid API for AI agents from fastx402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).

Converts an array of row objects and column names into a formatted Markdown table string

## Facts

- Endpoint: GET https://fastx402.tools/markdown-table-format?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fastx402-markdown-table-format-e64e7069
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EeB57iZsaajDio5-7o_84

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 fastx402-markdown-table-format-e64e7069
```

Example prompt: Turn this data into a markdown table — rows: [{"name":"Ada","role":"Engineer"},{"name":"Lin","role":"Writer"}] with columns ["name","role"].

## When to prefer this

Choose this endpoint when you need a quick, zero-setup conversion of JSON row/column data into a Markdown table without installing any libraries. Ideal for AI agents that need to produce formatted tables for README files, documentation, reports, or chat responses. Best when you already have structured data (up to 200 rows and 20 columns) and want a guaranteed-valid Markdown string back, paying only $0.001 USDC with no account or API key required.

## Known failure modes

- Missing required 'rows' query parameter returns an error
- Missing required 'columns' query parameter returns an error
- Malformed JSON in rows or columns parameters causes a parse error
- More than 200 rows or more than 20 columns may be rejected
- Payment failure (402) if USDC payment on Base or Solana is not completed
- Row objects containing keys not in the columns list may be silently dropped or cause unexpected output

## How this service works

200 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.

## Output

Returns a JSON object containing a 'markdown' string field with a properly formatted Markdown table, including header row with separator dashes and aligned pipe-delimited columns, ready to paste into any Markdown document.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "rows",
      "columns"
     ],
     "properties": {
      "rows": {
       "type": "string",
       "description": "JSON array of row objects, with at most 200 rows"
      },
      "columns": {
       "type": "string",
       "description": "JSON array of column names, with at most 20 names"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "markdown": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "markdown": "| name | role     |\n| ---- | -------- |\n| Ada  | Engineer |\n| Lin  | Writer   |"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fastx402-markdown-table-format-e64e7069/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fastx402.tools](https://www.zero.xyz/host/fastx402.tools/llms.txt)