"Services or tools that don't require a separate API key" matching MCP connectors:

DXF and PDF/X-4 for AI agents: structured facts, PNG renders, an interactive in-chat viewer.

Neutral freight reference + validation layer for AI agents: ADR, HS, UN/LOCODE, freight math

Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

SSRF-safe web intelligence: 4 outcomes, 43 paid x402 tools, 3 free tools and a URL preview.

The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.

Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance.

Diagnoses, drugs & lab codes: ICD-11, SNOMED, LOINC, RxNorm, MeSH, ATC, CID-10. 37 tools, MIT.

Free Vedic astrology: panchang, kundali, transits, matching, doshas, eclipses, numerology

AIOProductOS: revenue, feedback, work and analytics on one customer record. 71 tools, 3 apps.

530 MCP tools across 561 fintech tools: ChainGraph AP2 decisions, execution_hash. Zero PII.

Savvly MCP: query fund data, model projections, and compare against alternative retirement products.

Check if a task runs locally vs cloud. Save money on calls that don't need cloud inference.

Classify data safety before storing or sharing. GDPR, HIPAA, PCI-DSS, CCPA. AI-powered.

Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.

Persistent memory layer that saves and recalls your project context and preferences.

Identity infrastructure for the AI economy. Confirms if someone is known; returns inferred traits.

The CNAPS.ai MCP Server lets Claude build and run AI image, video, and text pipelines mid-conversation — no dashboard, no manual node-wiring. Describe a task in plain language (e.g. "upscale this photo 4x") and Claude selects the right model(s), wires a pipeline, and runs it.

Goal decomposition where every "done" is proven by evidence and checked by a judge.

The GVRN Incorporation MCP is a public Model Context Protocol (MCP) server that lets AI agents — on any LLM provider — collect and submit company incorporation requests to GVRN on a user's behalf. Every submission is reviewed by GVRN's corporate secretarial team, who follow up with the user by email. All fields are optional, so an agent can submit early with whatever the user has provided and let a specialist fill in the gaps.