Mastercard Developers Agent Toolkit (MCP)

Live Developer-tooling MCP server · first seen Mar 2026 · last checked Oct 17, 2026

For Mastercard Open Finance US (Finicity).

Mastercard's Developers Agent Toolkit is a free MCP server that serves Mastercard developer documentation and API specs to AI coding tools, including the Open Finance US (Finicity) docs. It has a hosted remote option at https://developer.mcp.mastercard.com and a local stdio option; Mastercard describes its tools as exposing developer docs, API specs and guides.

Facts

Mastercard Developers Agent Toolkit (MCP) facts
Endpoint	developer.mcp.mastercard.com Checked on the source's own page · Oct 17, 2026 “claude mcp add --transport http mastercard-developers https://developer.mcp.mastercard.com” Source https://developer.mastercard.com/platform/documentation/agent-toolkit/ Checked Oct 17, 2026 Note A hosted remote option; a local stdio option via @mastercard/developers-mcp also exists.
Transport	http Checked on the source's own page · Oct 17, 2026 “claude mcp add --transport http mastercard-developers” Source https://developer.mastercard.com/platform/documentation/agent-toolkit/ Checked Oct 17, 2026 Note The page gives the flag 'http' and does not use the words 'Streamable HTTP'. The SDK page says the local server runs over stdio.
Tool count	Not found Not found · Oct 17, 2026 Checked Oct 17, 2026 Note The pages read do not give a tool count. The install page names a get-services-list tool that is disabled when a service or API specification is set.
Read or write	documentation-and-specs Checked on the source's own page · Oct 17, 2026 “exposes product docs, API specs, and guides on Mastercard Developers as structured tools” Source https://developer.mastercard.com/platform/documentation/agent-toolkit/ Checked Oct 17, 2026 Note The page describes docs, API specs and guides on Mastercard Developers and describes no customer data. It covers all of Mastercard Developers; the SDK page FAQ says 'This MCP is exclusively for Mastercard Developers.'
Authentication	Not found Not found · Oct 17, 2026 Checked Oct 17, 2026 Note The install commands on the pages read show no credentials, but no page states an authentication requirement either way.
Who turns it on	Self-serve: add the server URL in an MCP client, or run the npm package locally Checked on the source's own page · Oct 17, 2026 “Remote (recommended): The remote option is easier to set up, requires minimal configuration” Source https://developer.mastercard.com/platform/documentation/agent-toolkit/ Checked Oct 17, 2026
Price	Free Checked on the source's own page · Oct 17, 2026 “The MCP toolkit is completely free to use.” Source https://developer.mastercard.com/platform/documentation/agent-toolkit/install-mcp-sdk/ Checked Oct 17, 2026

Tools

The vendor's public pages don't list the tools by name.

Where it's listed

developer.mastercard.com: Mastercard Open Finance US documentation (Checked on the source's own page, Oct 17, 2026)
registry.modelcontextprotocol.io: Official MCP registry (From a third-party page, Oct 17, 2026)

This page states security facts: how you sign in, whether the server can change data, and who has to switch it on. It doesn't endorse the server. Check your firm's policy before connecting an AI assistant to client data.

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