x402 Services
| Rank | Service | Category | Chains | Volume · 30d | Transactions · 30d | Buyers |
|---|---|---|---|---|---|---|
| — | ChainQuery Bitcoin Intelligence intel.chainquery.com Premium Bitcoin on-chain intelligence (fee pressure, CDD, address lookup, rich list, coin velocity, HODL waves) — pay-per-call in USDC over x402. | Data | Base | $0.00 | 0 | 0 |
| — | ChainVerdict API chainverdict.xyz Evidence-backed checks for autonomous agents before moving money or trusting a counterparty. Every paid response includes an evidence object (checks… | Chain infra | Base | $0.00 | 0 | 0 |
| — | CHAPPY Japan Address Preflight chappy-japan-address-preflight.pre23964wb.workers.dev Reproducible Japan Post evidence before an autonomous agent submits a Japanese address. One 0.02 USDC x402 call returns a fail-closed town-level consistency… | AI | Base | $0.02 | 1 | 1 |
| — | OpenGradient memchat.io OpenGradient's pay-per-use AI API. Generate AI video from text or an image, paid per clip in Base USDC over x402: no account or API key. | AI | Base | $0.945 | 1 | 1 |
| — | ChatRIP Legends chatrip.app Paid AI chat service for interacting with Legends through the ChatRIP API. | AI | Base | $0.14 | 2 | 3 |
| — | chess402 chess402.vercel.app Pay-per-call chess API. x402 + MPP wrappers around popular Lichess endpoints. | Data | Base | $0.00 | 0 | 0 |
| — | citation-tracker citation-tracker.pixelcove.co Checks whether current AI search assistants (Perplexity, ChatGPT, Claude, Gemini) cite your target domains for a prompt, and whether ChatGPT's first search… | AI | Base | $0.00 | 0 | 0 |
| — | claim-verifier.pdfextractapi.workers.dev claim-verifier.pdfextractapi.workers.dev Provides a paid API endpoint for claim verification. | Search | Base | $0.00 | 0 | 0 |
| — | ClaudeLines claudelines.com Registry and leaderboard for Claude Code statusline scripts. Installing one runs third-party code on the user's machine. Paid registrations are LLM-audited… | AI | Base | $0.20 | 2 | 2 |
| — | Claw-in-a-Box clawinabox.xyz Provides a paid API endpoint for guard checks. | AI | Base | $0.05 | 5 | 5 |
| — | clawmail.xyz clawmail.xyz Create a custom email mailbox at @clawmail.xyz for AI agents and LLMs | AI | Base | $1.00 | 1 | 2 |
| — | Cleared Video Generation API cleared.ink Agentic AI video rendering infrastructure driven by programmable x402 payment cycles. | Media | Base | $0.05 | 5 | 5 |
| — | corpusAI Cloud Pricing API trycorpus.ai Every spot price change collected directly from the provider APIs (EC2 DescribeSpotPriceHistory, GCP Capacity Advisor, Azure Resource Graph), stored as… | AI | Base | $85.48 | 505 | 253 |
| — | cnvrt.ing cnvrt.ing Provides an AI-powered image analysis API. | AI | Base | $0.01 | 2 | 2 |
| — | CodePulse Agentic API codepulse-api.hahavoid0.workers.dev The premier developer tool suite built natively for AI agents. Gain access to 50+ deterministic APIs designed to extend LLM capabilities—from bypassing SMS… | Data | Base, Solana | $0.00 | 0 | 0 |
| — | Coil Scanner Agent API coil.trade Market data and trading signals for AI agents, paid per call in USDC — no account, no API key, no signup. New here? Start with GET /api/crypto/gate — $0.001… | Data | Base, Solana | $0.00 | 0 | 0 |
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