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ProPublica Nonprofit MCP — ProPublica Nonprofit Explorer API (free, no auth)
MCP endpoint :https://gateway.pipeworx.io/propublica-nonprofit/mcp · website · measurements and detailsMCP server for nonprofit financials via ProPublica — IRS Form 990 data for 1.8M+ nonprofits.
MCP endpoint :https://nonprofit-explorer.caseyjhand.com/mcp · website · measurements and detailsNonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica
MCP endpoint :https://mcp.olyport.com/irs-990/mcp · website · measurements and detailsNonprofit compliance rules for all 50 US states, each with its official citation and status
MCP endpoint :https://mcp.501c3.help/ · website · measurements and details12 synthetic grant report exception cases: duplicate disbursements, debarment hold list entries, mis
MCP endpoint :https://a2awire.com/mcp/benchmarks/grant-report-review-2026-09-17-9189341d/http · website · measurements and detailsCompile code with thousands of compilers, inspect the assembly, and share godbolt.org links
MCP endpoint :https://godbolt.org/mcp · website · measurements and detailsEU customs-trade & industrial-production statistics (Eurostat Comext/PRODCOM)
MCP endpoint :https://mcp.tradedashboard.eu/mcp · website · measurements and detailsThru blockchain explorer: blocks, transactions, accounts, and program ABIs on the Thru RISC-V L1
MCP endpoint :https://scan.thru.org/api/mcp · website · measurements and detailsQuery Australia's electricity market (NEM/AEMO): prices, generation, FCAS, interconnectors, bids.
MCP endpoint :https://chat.scadaminer.com/mcp · website · measurements and detailsQuery and explore Nova Scotia open datasets via the Socrata SODA API.
MCP endpoint :https://scotiasignal.ca/mcp · website · measurements and detailsSearch European tech funding rounds, companies, investors and exits — sourced, EUR-normalized.
MCP endpoint :https://funding.tech.eu/api/mcp · website · measurements and detailsIndustrial vacuum configurator: 150+ products, 24 sectors, ATEX certifications, technical specs.
MCP endpoint :https://depureco.com/wp-json/depureco/v1/mcp · website · measurements and detailsReal nonprofit tasks your agent can claim and finish. A person at the nonprofit reviews the work.
MCP endpoint :https://aimpact.himanshufr.me/api/mcp · website · measurements and detailsFind relevant security data from Sentinel data lake for building effective agents. More:aka.ms/s/de
MCP endpoint :https://sentinel.microsoft.com/mcp/data-exploration · website · measurements and detailsPython symbol exploration for codebase onboarding agents.
Package pypi :mcp-ast-explorer · website · measurements and detailsAssess your nonprofit's grant readiness with The Grant Readiness Checklist by the Nonprofit Lau
MCP endpoint :https://grantreadinesschecklist.com/api/mcp · website · measurements and detailsLive Starknet explorer data: transactions, contracts, tokens, NFTs, staking
Package npm :voyager-mcp · website · measurements and detailsCheck classifier confidence against accuracy, fit temperature scaling and save local reports.
Package npm :@m-sanchez/calibration-explorer-mcp · website · measurements and detailsMCP server specialized in retrieving information from Slack messages and threads
Package oci :ghcr.io/shibayu36/slack-explorer-mcp:0.12.0 · website · measurements and detailsAI-native Windows file manager for scoped discovery, disk analysis, and recoverable operations.
Package mcpb :https://github.com/terrorproforma/explore-better/releases/download/v0.2.8/ExploreBetter-MCP-0.2.8-windows-x64.mcpb · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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