DDG Agent-Payable Services
x402-bazaarUse case: commerce
Pricing: 0.01 USDC / call (eip155:8453)
Verify an agent-to-agent subscription or session claim: signed active|expired|revoked verdict with the evidence trail.
Listing info 80/100Tools for a more open agent web.
The directory of tools for agents
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Use case: infrastructure
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
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-…
Listing info 80/100agent-card-fetch
x402-bazaarUse case: other
Pricing: 0.01 USDC / call (eip155:8453); 10000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e (eip155:84532)
Agent discovery card fetch: looks for /.well-known/agent.json and /.well-known/agent-card.json (Google A2A Agent Card) plus /llms.txt and /.we…
Listing info 80/100AISkills402: Cold Email
x402-bazaarUse case: documents · communication
Pricing: 0.03 USDC / call (eip155:8453)
Cold Email — Writes a short, honest first outreach message to a stranger in business, in the recipient's language, with a subject line, one sp…
Listing info 80/100AISkills402: SEO Meta Writer
x402-bazaarUse case: documents · commerce
Pricing: 0.03 USDC / call (eip155:8453)
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 …
Listing info 80/100Use case: data · search
Pricing: 0.01 USDC / call (eip155:8453)
AI model benchmark evidence for Agent builders: Search live public web pages about ai model benchmark evidence, focused on agent builders. Ret…
Listing info 80/100Use case: data · search
Pricing: 0.01 USDC / call (eip155:8453)
Local business hours research for Agent builders: Search live public web pages about local business hours research, focused on agent builders.…
Listing info 80/100Use case: data · search
Pricing: 0.01 USDC / call (eip155:8453)
Model serving and inference for Agent builders: Search live public web pages about model serving and inference, focused on agent builders. Ret…
Listing info 80/100Use case: data · search
Pricing: 0.01 USDC / call (eip155:8453)
OAuth and passkey implementation for Agent builders: Search live public web pages about oauth and passkey implementation, focused on agent bui…
Listing info 80/100Use case: data · finance
Pricing: 0.01 USDC / call (eip155:8453)
Payment orchestration options for Agent builders: Search live public web pages about payment orchestration options, focused on agent builders.…
Listing info 80/100Use case: data · search
Pricing: 0.01 USDC / call (eip155:8453)
autonomous agent cybersecurity: Literature search: Literature search on autonomous agent cybersecurity using Crossref publisher metadata. Retu…
Listing info 80/100Use case: data · search
Pricing: 0.01 USDC / call (eip155:8453)
autonomous agent cybersecurity: Recent publications: Recent publications on autonomous agent cybersecurity using Crossref publisher metadata. …
Listing info 80/100Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works