Tools for a more open agent web.

The directory of tools for agents

29,849 tools · Connect an API to an agent · Reset filters
EXTERNAL

DDG Agent-Payable Services

Verify an agent-to-agent subscription or session claim: signed active|expired|revoked verdict with the evidence trail.

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed
EXTERNAL

canaryguard-402.onrender.com · /v1/url-agent-readiness

Audits any domain or URL for AI agent readiness (llms.txt, .well-known/x402, openapi.json, MCP server card) and detects hidden CSS/DOM prompt-injection traps.

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453); 10000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

agent-card-fetch

Agent discovery card fetch: looks for /.well-known/agent.json and /.well-known/agent-card.json (Google A2A Agent Card) plus /llms.txt and /.well-known/ai-plugin.json, …

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453); 10000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e (eip155:84532)Indexed
EXTERNAL

AISkills402: Cold Email

Cold Email — Writes a short, honest first outreach message to a stranger in business, in the recipient's language, with a subject line, one specific reason for writing…

APIx402

Listing info 80/100

0.03 USDC / call (eip155:8453)Indexed
EXTERNAL

AISkills402: SEO Meta Writer

SEO Meta Writer — Writes the SEO title, meta description and (on request) the H1 heading for one web page, in the page's own language, inside hard character limits, ma…

APIx402

Listing info 80/100

0.03 USDC / call (eip155:8453)Indexed

Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works