"Canonical" matching MCP servers:

Serves the canonical Tank Fight specification, enabling clients to query game parameters, maze layouts, and rules via MCP tools.

Hashlock Markets — sealed-bid intent-based crypto trading via MCP for AI agents. Atomic cross-chain settlement (Ethereum, Bitcoin, Sui) using HTLC. Six MCP tools for RFQ price discovery without information leakage and HTLC settlement without escrow or bridges. Canonical npm: @hashlock-tech/mcp.

Anchord MCP is a hosted remote MCP server for AI agents that need canonical identity resolution and safe write evaluation across customer systems. Resolve companies and people to canonical AnchorIDs, inspect linked records and target-system coverage, and evaluate whether a proposed write should be allowed or blocked. Read-only by design.

Enables agents to search evidence-backed startup credits and deals, inspect Agent Readiness report cards, and prepare canonical declaration YAML from a stdio bridge to Sourcey's hosted MCP endpoint.

MCP server for deterministic document infrastructure, enabling canonical normalization, schema validation, and grammar compilation for structured AI artifacts.

Enterprise AI operator evaluation MCP server. 27 tools (22 read + 5 write) for measuring, benchmarking, diagnosing, and interv ening on how human operators use AI tools across 5 canonical metrics.

A typed stdio/HTTP MCP server that lets agents drive governed portfolio-company data onboarding: profiling sources, inferring entities and joins, proposing canonical mappings, generating and sandbox-testing dbt artifacts, and publishing only human-certified results. It exposes agent and reviewer-only tools, tenant-scoped run/ontology/evidence resources, and guided prompts, keeping every calculation deterministic and every approval with a human.

Enables AI agents to ask questions, post answers, vote, and retrieve pinned canonical solutions on a shared token-efficient Q&A forum. Agents can search threads, register for an API key, and read or write content directly from any MCP client.

Canonical vocabulary server for autonomous business design. Exposes the Arco Lexicon as seven MCP tools: term lookup, related terms, alignment verification, citation formatting, source retrieval, term listing, and term suggestion. No authentication required. Streamable HTTP transport.

Enables AI agents to access and search up-to-date Solana documentation, get canonical spec references, and fix Anchor/Pinocchio Solana programs via MCP tools.

Reference MCP server for K-product cross-border commerce with five canonical tools for product search, cart creation, checkout quoting, and order submission.

Enables Claude Code users to decompose a raw prompt into structured, typed blocks and then recompile them into a Claude-optimized XML prompt with an estimated token count. It also exposes the full catalog of available block types with descriptions and their recommended canonical ordering for manual prompt crafting.

Enables Claude Code to break raw prompts into structured, typed blocks and recompile them into Claude-optimized machine-readable XML, with tools for listing available block types and canonical ordering. It also returns token estimates and supports manual block editing within the workflow.

Connects AI agents to the Archive of Our Own for full-filter fanfiction search, live canonical tag resolution, and work metadata lookup, and lets a cheap secondary model read up to 20 entire fics per call to return structured reports with prose samples and rankings. Can be run over stdio or hosted as a stateless Streamable-HTTP endpoint so remote clients and container deployments can reach it.

Exposes prompt-engineering tools that break a raw prompt into typed blocks, let them be adjusted, and recompile them into a Claude-optimized XML prompt with an estimated token count. Also lists the available block types and their recommended canonical ordering.

Enables agents and Claude Desktop to query a single canonical source for multifamily marketing metrics, with 22 tools for retrieving metric definitions and values from a synthetic portfolio database.

Enables decomposing raw prompts into structured, typed blocks and recompiling them into Claude-optimized machine-readable XML prompts, all callable directly from Claude Code conversations. Also exposes the full set of available block types and their recommended canonical ordering for manual crafting.

Provides canonical Quran text, translations, and tafsir commentary via MCP for accurate AI citation.

Enables validating phone numbers (validity, line type, carrier, region, country, and canonical formats) and checking Veriphone API credits and quota through MCP tools.

Enables Claude Code to decompose raw prompts into structured typed blocks, compile blocks into Claude-optimized XML prompts with estimated token counts, and list all 16 available block types with their canonical ordering.