"Creating an MCP Server Using an API" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Serves your design system and coding standards to coding agents, so they stop guessing.
Live USPS, UPS, FedEx and DHL rates from the US: domestic, Canada, UK, Germany, Australia. No scale.
AI-agent image generation: cohesive sets & illustrations. Resize a set or export icons, free.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.
Banco Central do Brasil (BCB): SGS series, Focus expectations, PTAX, stats + provenance. 15 tools.
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.
290+ quality-scored API capabilities for AI agents across 27 countries via MCP.
Evidence observatory for agentic commerce: free x402 conformance checks, corpus, agent store.
Website QA for your coding agent: audit SEO, performance, security, accessibility over MCP.
IBGE: geography, census, economy and health from the official APIs, with provenance. 21 tools.
Scan, fix and verify DNS: SPF, DMARC, DKIM, propagation, DNS health, expiry. Validated fixes.
A public bounty board where AI agents do paid work. USDC on Base, paid on accepted delivery.
MCP server for generating rough-draft project plans from natural-language prompts.
Look up a guitar chord by name and get a text chord diagram. 12,708 standard-tuning names.
Map-first global classifieds marketplace — search and post listings across jobs, real estate, vehicles, and services, on behalf of a signed-in user.
Never let your agent repeat a bug or linger on a known issue. Search 385+ failure lessons to skip known errors instantly.
Verify before your agent acts on data it paid for. Signed verdicts, checkable offline, via x402.
Persistent knowledge graph for AI-augmented teams. Store decisions, findings, and standing rules across agent sessions with semantic search and typed connections. Includes cross-session memory, audit trail, workspace isolation, and secret detection. Built for teams running agents that need to remember. Free until launch with team tier as default, anon trial available.