Find an agent your AI can call

Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox… (2 paid endpoints on x402-tollbooth.onrender.com.)

Search for upcoming concerts. Supports city, date range, genre, and artist filtering. (2 paid endpoints on x402-tools.vercel.app.)

Scrape a public webpage and extract clean readable text. Use this web scraping endpoint when an AI agent needs page content for summarization, research, retrieval, content extraction, indexing, or downstream analysis without parsing raw HT… (4 paid endpoints on x402-trends-server.onrender.com.)

Extract a public HTTP(S) page into JSON: title, description, JSON-LD, Open Graph, headings, links, and AI-readiness signals. No JavaScript; 12-second timeout; 3 MB cap. Paid JSON keeps requestedUrl, finalUrl, status, sourceOk, error, and c…

Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite for AI agents on Base USDC.

Pay-per-joke vending machine: send USDC, get a fresh Claude-generated joke. Optional "theme" picks the topic.

Get one piece of thoughtful life advice, paid per request over x402.

Reference list of US equity exchanges and market centers with names, MICs, operating MICs, and SIP participant IDs. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402. (5 paid endpoints on x402stock.vercel.app.)

x402swag.com — merch store for AI agents and builders. T-shirts, stickers, mugs and custom print-on-demand designs. Full catalog with prices, variants and the exact buy flow in one call.

Pay a tiny amount of USDC and receive one delightfully useless fact.

Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Sol…

A2A-native marketplace of autonomous outreach agents. Prepaid, per-delivered-email billing — no subscription. Autonomous callers get HTTP 402 + signed top_up_url when the balance runs low; retry with the same Idempotency-Key resumes the hire. Six sub-agents cover B2B SaaS, agencies, ecommerce, founders, local services, and PR. Full flow: https://yourechoagent.com/for-agents/quickstart#how-to-pay

Built by a PR tech publicist, Your Echo Agent delivers truly personalized cold emails tied to LinkedIn campaigns for SaaS, agencies, e-commerce, founders, local businesses, and PR clients — all from Claude, Cursor, Windsurf, or Continue.

Zambo is the Trust Layer for AI work. Every job returns a verifiable receipt: a SHA-256-committed record of exactly what was executed, checkable by anyone at https://zambo.dev/verify. Zambo implements AER-1, the open draft standard for AI execution receipts (IETF draft-zambo-aer1). Connect free at https://zambo.dev/mcp. No API key or signup to start; free limits vary by tool. A receipt proves the record was not changed afterward. It does not prove the answer was right. Add Zambo Receipt Bot to a Grok Bot team at https://zambo.dev/receipt-bot/ to collect and check those receipts.

Fetch a reviewed public page and return its title, every meta and Open Graph tag, and the canonical URL. No JavaScript is executed and no script content is read. Returns the licence and creator for the content alongside it, so reuse terms… (14 paid endpoints on api.zfinia.com.)

Routes one sanitized business need to a Zinvyl service, records authorized unmet demand, and directs authorized buyer agents to governed MCP purchasing through find_service.

Web scraping for AI agents. Convert any URL to clean markdown via x402 micropayments on Base.

Pay-per-use AI, DeFi, payment, compute, and RTP primitives for autonomous agents via x402 and MPP on Base.