io.github.Mastercard/developers-mcp
Mastercard Developers MCP
Is the Mastercard Developers MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.
Access Mastercard Developers APIs, documentation, and API specifications through MCP.
alive probed 2026-11-14 · unchanged since 2026-10-31
- Run it
- npx -y @mastercard/developers-mcp@0.1.5 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mastercard-developers-mcp 0.1.4
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 2.2k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 2.3k. The o200k_base estimate is 1.3k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/Mastercard/developers-agent-toolkit
- Registry
- active, updated 2026-03-25 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.75×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| get-api-operation-details | 546 | 311 | 25 % |
| get-documentation-section-content | 402 | 229 | 18 % |
| get-api-operation-list | 258 | 147 | 12 % |
| get-documentation | 249 | 142 | 11 % |
| get-documentation-page | 226 | 129 | 10 % |
Compare this server with others.
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Servers that mention developers.
- Reviewder app.reviewder/reviewder · needs auth
- ai.smithery/neverinfamous-memory-journal-mcp · not found
- WarpLink app.warplink/warplink · needs auth
- ADITUS Developer Portal MCP com.aditus.developers/developer-portal · alive
- Fat Heron Developer Platform com.fatheron/fat-heron · needs auth
- StarHunt com.getstarhunt/github-developer-sourcing · needs auth
- com.jojapi/duckduckgo · alive
- com.jojapi/nameresolver · alive
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.