Mastercard Developers Agent ToolkitBLOCK
The Mastercard Developers Agent Toolkit allows popular agent frameworks to integrate with Mastercard Developers Platform for service discovery and integration guides.
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
The Mastercard Developers Agent Toolkit allows popular agent frameworks (currently Model Context Protocol - MCP) to integrate with Mastercard Developers for service discovery and integration guides.
Key Features
- Service Discovery: Enables agents to programmatically discover available services on the Mastercard Developers platform.
- Integration Guide Access: Provides access to detailed documentation and integration guides.
- Flexible Deployment: Can be run as a standalone server or integrated as a library in TypeScript/JavaScript projects.
- MCP-Based: Built on the Model Context Protocol (MCP) for standardized communication.
Supported Tool Calls
The toolkit provides the following tools for agents to use:
Services
get-services-list: Lists all available Mastercard Developers Products and Services with their basic information including title, description, and service id.
Documentation
get-documentation: Provides an overview of all available documentation for a specific Mastercard service including section titles, descriptions, and navigation links.get-documentation-section-content: Retrieves the complete content for a specific documentation section.get-documentation-page: Retrieves the complete content of a specific documentation page.get-oauth10a-integration-guide: Retrieves the comprehensive OAuth 1.0a integration guide.get-oauth20-integration-guide: Retrieves the comprehensive OAuth 2.0 integration guide.get-openfinance-integration-guide: Retrieves the comprehensive Open Finance integration guide.
API Operations
- `get-api-operation-li
7b9bf8cfda68OBSERVED · 2026-10-08Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add developers-mcp -- npx -y @mastercard/[email protected]
Trust audit
BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | FAIL |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- declared (2 observation(s))
- Network
- declared (2 observation(s))
- Shell
- declared (1 observation(s))
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (11)
| `401` `DECLINED` "Unauthorized - Access Not Granted" | Any | **The credential is valid.** The project is not entitled to that endpoint. Request access rather than changing the auth code. |
| `401` `DECLINED` "Unauthorized - Access Not Granted" | Any | **The credential is valid.** The project is not entitled to that endpoint. Request access rather than changing the auth code. |
| `401` `DECLINED` "Unauthorized - Access Not Granted" | Any | **The credential is valid.** The project is not entitled to that endpoint. Request access rather than changing the auth code. |
| `401` `DECLINED` "Unauthorized - Access Not Granted" | Any | **The credential is valid.** The project is not entitled to that endpoint. Request access rather than changing the auth code. |
| `401` `DECLINED` "Unauthorized - Access Not Granted" | Any | **The credential is valid.** The project is not entitled to that endpoint. Request access rather than changing the auth code. |
.dxtignore
.node-version
import { version } from '../../package.json';@modelcontextprotocol/sdk, @anthropic-ai/dxt, @eslint/compat, @eslint/js, @types/jest, @typescript-eslint/eslint-plugin, @typescript-eslint/parser, esbuild
@modelcontextprotocol/sdk, node-fetch, zod, @eslint/compat, @types/jest, @types/node-fetch, @typescript-eslint/eslint-plugin, eslint-config-prettier
Gates applied: no_behavioural_pass.
7b9bf8cfda68full audit observations/trust-audit/mcp-server/mastercard__mastercard-developers-agent-toolkit.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-08 | 7b9bf8cfda68 | BLOCK | D | 69 | first audit |
Questions
What is the Mastercard Developers Agent Toolkit MCP server?
The Mastercard Developers Agent Toolkit allows popular agent frameworks to integrate with Mastercard Developers Platform for service discovery and integration guides.
Is Mastercard Developers Agent Toolkit safe to connect to an agent?
No — not without reading the findings first. The audit graded it D (69/100) and found 5 critical or high issues in the source. Each one is listed on this page with the file and line it is on.
What credentials does Mastercard Developers Agent Toolkit need?
No credential environment variables were found in its source, so it appears to need none.
How does Mastercard Developers Agent Toolkit run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as @mastercard/developers-agent-toolkit at 0.1.6.
How current is this page?
The grade is for one exact copy of the source (7b9bf8cfda68), read on 2026-10-08. The repository is watched and re-audited when it changes.