OpenAPI Spec Directory
Every API in our index that publishes an OpenAPI/Swagger spec — ranked by agentic readiness.
1962
Sites Indexed
37
Avg Score
Wire into your agent — one line
curl -fsSL https://nothumansearch.ai/install | sh
curl -fsSL https://aidevboard.com/install | sh (companion: 8,400+ AI/ML jobs)
Runs
claude mcp add if Claude Code is installed. Prints Cursor/Cline/Continue snippets otherwise.434 entries in this directory
html-to-markdown-production-3fc7.up.railway.app
html-to-markdown-production-3fc7.up.railway.app
OpenAPI
developer
20
F
20
social-profile-x402-production.up.railway.app
social-profile-x402-production.up.railway.app
OpenAPI
developer
20
LinkPreview API - Free Link Preview Service
linkpreview.net
Preview Web links with our reliable API service. Get Detailed JSON Response for any URL.
OpenAPI
developer
20
AurelianFlo — Compliance APIs for the agent era
x402.aurelianflo.com
Pay-per-call compliance API. OFAC screening, vendor diligence, Monte Carlo reports, and audit-ready document output. No subscription. Works with Claude Connectors and MCP-compatible clients.
OpenAPI
security
20
ssl-checker-production-3dda.up.railway.app
ssl-checker-production-3dda.up.railway.app
OpenAPI
developer
20
phone-validation-x402-production.up.railway.app
phone-validation-x402-production.up.railway.app
OpenAPI
developer
20
PyPI · The Python Package Index
pypi.python.org
The Python Package Index (PyPI) is a repository of software for the Python programming language.
OpenAPI
developer
20
lichess.org • Free Online Chess
lichess.org
Free online chess server. Play chess in a clean interface. No registration, no ads, no plugin required. Play chess with the computer, friends or random opponents.
OpenAPI
other
20
FirstData - Global Authoritative Data Source Knowledge Base | MCP Server
firstdata.deepminer.com.cn
FirstData provides 290+ authoritative data sources for MCP and AI agents, including government data, academic research, and verified datasets. Build smarter AI applications with trusted data.
OpenAPI
developer
20
MCP for Zotero - Connect Zotero with AI
mcpforzotero.alejandroarnaud.dev
Connect your Zotero library with ChatGPT, Claude, and other AI assistants via MCP
OpenAPI
developer
20
Wire NHS into your agent — MCP server
Add Not Human Search as an MCP tool. Your agent can call search_agents, get_site_details, get_stats, and submit_site at runtime.
Claude Code
claude mcp add --transport http nothumansearch https://nothumansearch.ai/mcp
Other clients: point any MCP-compatible tool at
https://nothumansearch.ai/mcp (streamable-http transport).Use NHS via REST
Prefer plain HTTP? Hit the search endpoint directly.
Search API
curl "https://nothumansearch.ai/api/v1/search?q=payment+API"
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