---
name: "xpay-clinical-trials-search-trials-by-nct-ids"
description: "Retrieve specific clinical trials by NCT ID(s).

This tool allows you to retrieve the details of specific clinical trials by providing their NCT IDs.

Input:
  - `nct_ids`: A list of strings, where each string is an NCT ID to retrieve.
               Example: `['NCT04280705', 'NCT04280718']`
  - `fields`: A list of specific fields to return in the results. If not provided, returns
              SEARCH_TOOL_DEFAULTS (9 essential fields: NCTId, BriefTitle, Acronym, Condition,
              Phase, InterventionName, LeadSponsorName, OverallStatus, HasResults)."
version: "1.0.0"
price: "$0.01/call"
provider: "Clinical Trials"
---

# Search Trials By Nct Ids

Retrieve specific clinical trials by NCT ID(s).

This tool allows you to retrieve the details of specific clinical trials by providing their NCT IDs.

Input:
  - `nct_ids`: A list of strings, where each string is an NCT ID to retrieve.
               Example: `['NCT04280705', 'NCT04280718']`
  - `fields`: A list of specific fields to return in the results. If not provided, returns
              SEARCH_TOOL_DEFAULTS (9 essential fields: NCTId, BriefTitle, Acronym, Condition,
              Phase, InterventionName, LeadSponsorName, OverallStatus, HasResults).

**Provider:** Clinical Trials
**Price:** $0.01/call
**Pricing model:** Flat rate per call

## When to Use

Use this tool when you need to retrieve specific clinical trials by nct id(s).

this tool allows you to retrieve the details of specific clinical trials by providing their nct ids.

input:
  - `nct_ids`: a list of strings, where each string is an nct id to retrieve.
               example: `['nct04280705', 'nct04280718']`
  - `fields`: a list of specific fields to return in the results. if not provided, returns
              search_tool_defaults (9 essential fields: nctid, brieftitle, acronym, condition,
              phase, interventionname, leadsponsorname, overallstatus, hasresults).. This is part of the Clinical Trials provider on xpay✦.

## MCP Connection

Connect to xpay✦ to access this tool (and 11+ others):

```json
{
  "mcpServers": {
    "xpay": {
      "url": "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"
    }
  }
}
```

For Claude Code:
```bash
claude mcp add --transport http xpay "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"
```

## How to Execute

Use the xpay✦ meta-tools to run this tool:

1. **`xpay_details`** — Get full input schema: `xpay_details("clinical-trials/search_trials_by_nct_ids")`
2. **`xpay_run`** — Execute: `xpay_run("clinical-trials/search_trials_by_nct_ids", { ...inputs })`

## Input Parameters

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `nct_ids` | array | Yes | NCT IDs to retrieve |
| `fields` | string | No | Specific fields to return |

## Pricing

- **Cost:** $0.01/call
- **Balance check:** Use `xpay_balance` to check remaining credits
- Get your API key at [xpay.tools](https://xpay.tools/account/settings/api-keys/) — $5 free credits included

## Related Skills

- [Clinical Trials (all tools)](https://xpay.tools/skills/clinical-trials/SKILL.md) — 12 tools
- [Search Trials By Condition](https://xpay.tools/skills/clinical-trials/search-trials-by-condition/SKILL.md) — $0.01/call
- [Search Trials By Intervention](https://xpay.tools/skills/clinical-trials/search-trials-by-intervention/SKILL.md) — $0.01/call
- [Search Trials By Sponsor](https://xpay.tools/skills/clinical-trials/search-trials-by-sponsor/SKILL.md) — $0.01/call
- [Search Trials By Acronym](https://xpay.tools/skills/clinical-trials/search-trials-by-acronym/SKILL.md) — $0.01/call
- [Search Trials Combined](https://xpay.tools/skills/clinical-trials/search-trials-combined/SKILL.md) — $0.01/call

## Links

- Tool page: https://xpay.tools/clinical-trials/search-trials-by-nct-ids/
- Provider: https://xpay.tools/clinical-trials/
- All tools: https://xpay.tools/explore