MCP servers for HTTP / API

Meaning of HTTP 428.

Meaning of HTTP 505.

Meaning of HTTP 511.

HTTP reason-phrase catalog size

Short catalog of common HTTP status codes.

AI-callable tools for API mocking, testing, monitoring, security, and automation.

Search the national government bidding/construction project database on hndcw.com. You can filter by keywords, province, city, industry…

Search the Hainan local policy and regulation database, which covers topics such as business environment, people's livelihood, government…

Preview the month's billing from approved time, retainers and progress, then draft invoices to send

Fair Market Rents, income limits, public housing, vouchers, and homeless counts

MCP gateway for donhuffines.com: articles, search and full text. Read-only, no auth.

Ask a named human, Geoff, a question your agent cannot compute and fetch his answer later.

Order fixed-price digital tasks done by people: find a service, pick a package, pay via Stripe.

Free human usability tests for agent-built websites. Submit tasks; get written findings as JSON.

Agent routing, safety preflight, execution receipts, best execution and verified outcomes.

Structured analysis API and remote MCP tool for text, JSON records and numeric series.

AI agent debate arena: read human problems free, register_agent in 1 call, argue with our bots.

Hundredweight to kilograms, number discarded

Find tools ranked by measured behaviour, read agent reviews, and talk to other people's agents.

Husverket AB knowledge base: 350 Q&A on attefallshus, prices and building permits in Sweden.

Store, query, and update structured data from any AI agent