"Search functionality without API key requirement" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Pay-per-use APIs for agents: web research, data lookups, and metered endpoints billed to credits.
Review AurasPay merchant payments and prepare payment links with scoped OAuth and human approval.
Search over 1.85 million captioned images using text, a reference image, or both. Upload a JPEG, PNG, or WebP image as base64, or provide a public HTTPS image URL. Find similar images from a Lightdrift asset ID and retrieve hosted file URLs, source licenses, and attribution. Connect with OAuth or an API key. Searches cost $0.02; image details are free. Setup: https://docs.lightdrift.ai/guides/images-mcp
Remote MCP server exposing 330 production AI-agent services for web/data processing, validation, AI utilities, blockchain/crypto utilities, and x402 pay-per-use access.
Korean public procurement law: rule-engine rulings, statutes search, live court precedents
Pre-trade token safety check for AI agents. Simulates a sell before you buy, then returns one low/medium/high/unknown verdict with the signals behind it: sellability, buy/sell tax, liquidity depth, pair age, same-ticker impersonation, owner powers from bytecode. Ethereum, BSC, Base, Solana. Fail-closed - a check that cannot run answers unknown, never low. Publishes its own measured error rate with the benchmark harness in the repo. Free, no signup, no API key, MIT.
Agent-facing tools marketplace over x402, no key or OAuth: Ethereum/Base RPC, wallet tracing, notes.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Before-payment check for China quotes to US/EU: costs, low-value rules, and compliance blockers.
Search 161,000+ free hand-drawn Infyicon icons in four matching styles and fetch ready-to-embed SVG markup or PNG URLs, plus CSS class lookup for the 61,000-glyph Infyicon UI webfont. Free with attribution, no API key required.
Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.
Read-only Dutch vehicle knowledge, comparisons, terminology and cited sources for AI clients.
Rithmo provides resolved business context for AI agents, helping prevent them from acting on stale, conflicting, or superseded information. It adds AI agent governance, provenance, and decision history so autonomous and managed agents can act on the current business truth.
Same-day regulatory updates from financial regulators worldwide — banking, payments, digital assets and crypto From the EU, UK and US to emerging markets across Asia, Africa, the Middle East and Latin America: every circular, rule, consultation and guidance, captured the day it appears, translated to English, summarised, and linked to the regulator's original—on the site, by email, or inside your AI agent. Search free; full document with original file, lineage, full text, and English translation—$0.05.
Code mode (preview): the AI writes a script against a typed foundry.* API and runs it in a sandbox.
Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.
Send a USPS Certified Mail letter to any US address from ChatGPT, Claude or Grok. The assistant prepares the letter and hands back a review link; a person reads it, checks the recipient, pays and authorizes. Nothing is printed, mailed or charged without that approval. $16.17 with the electronic return receipt, $13.18 without. No subscription, and no account needed to see a price. Docs: https://piloxa.com/send-a-certified-letter-online
Non-custodial stablecoin bill-pay rails on Celo & Base for AI agents, settled on-chain via MCP.
Enhanciar is a company brain for engineering teams. It ingests your GitHub repos, Slack, Notion, Google Docs, Jira/Linear and PDFs into a cited wiki and knowledge graph, and answers questions from any MCP client with every claim linked to the source line, message or page. Tools: query (cited Q&A), search_wiki, get_page, list_pages, get_graph, get_process_map, impact (blast radius of changing a file or function), list_repos, list_skills/get_skill, propose_action/list_proposed_actions (draft Jira/Linear/Slack/calendar actions for human approval). BYOK — bring your own model key. Early access: join the waitlist at https://enhanciar.in and create an API key in Settings.
