Which Data Providers Accept x402

A growing number of data and API providers now accept x402, the open standard that lets AI agents pay for a resource per request in USDC without an account, a subscription or an API key. This directory lists the providers currently accepting x402, grouped by what they sell, with prices where they are published. Figures verified 20 July 2026.

Fin-Tech intelligence

Cantica. Fin-Tech intelligence datasets covering licensing, market structure and company activity, published by The Bright Minded. Premium datasets are payable by AI agents over x402 in USDC, alongside standard checkout for human buyers.

Crypto market data

• CoinGecko. Price data at $0.01 in USDC per call, settled on Base or Solana, with no account needed. It is the most frequently referenced x402 endpoint in production use.
• AgentData API. Sixteen separate endpoints on Base covering prices, funding rates, volatility, liquidation levels, DeFi yields, cross-exchange arbitrage, technical indicators, sentiment, stablecoin health and historical OHLCV. Runs its own facilitator and supports x402 v2 with Bazaar discovery.
• Crest x402 Data. Wallet and buyer analysis, including behavioural clustering, spend history and risk scoring, together with market data across DeFi, derivatives, NFTs and DEX pairs.

Trading signals

• Kraken Crypto Signals. Directional calls with a confidence score, at $0.01 for a single pair and $0.10 for a full market scan on Base. Responses carry a cryptographic signature and a verifiable track record, and a free preview endpoint is available.
• Agent Signals. Three endpoints on Base: funding rate with crowding bias at $0.01, a BTC to altcoin lead-lag signal at $0.02, and a market regime indicator at $0.01. No registration required.

Search and web data

• Exa. Search and Contents APIs available without an API key, paid in USDC on Base or Solana. Requests made over x402 return up to ten results.
• Perplexity Sonar. Search responses grounded in sources with citations, sold on a per-request basis.
• Web extraction. Page retrieval as clean HTML or markdown at 0.005 USDC, and structured JSON extraction against a supplied schema at 0.02 USDC, settled on Solana.

Other data

• Fly Labs Agentic Market. YouTube data APIs priced in USDC on Base.
• GPT55. Wallet safety and merchant readiness checks, from $0.0001 for chat to $0.01 for signing and approval checks.
• Neynar. Farcaster social data, available either on a $59 monthly plan or per request through x402.
• Nyne AI. Person and company enrichment, made available over x402 through PaySponge.

Marketplaces and directories

pay.sh and xpay.sh both list x402 endpoints across categories, and awesome-x402 on GitHub is the community-maintained index of the ecosystem.

Infrastructure providers

These support x402 rather than selling data over it. Cloudflare has added x402 to Workers and opened a waitlist for a monetisation gateway. Vercel offers x402 middleware for serverless functions. Zuplo provides x402 paywalls to API gateway customers. On the buying side, AWS Bedrock AgentCore Payments handles payment capability for agents.

What the directory shows

Most providers accepting x402 today sell real-time signals and utility data, priced between $0.0001 and $0.10 per call and designed for agents making high volumes of small requests. That reflects where the protocol found its first fit: fast, cheap, repeated lookups.

Research datasets sit at the other end of the same market. An agent asking how a market is structured, who holds which licence, or how a sector has changed over time needs a curated record rather than a live figure, and that is a different kind of purchase.

About Cantica

Cantica is the Fin-Tech intelligence system behind The Bright Minded. It produces original datasets and reports on the Fin-Tech industry. Human buyers purchase through standard checkout. AI agents request a premium dataset, receive an x402 response stating the price and terms, pay in USDC, and receive the file within seconds. No account, no API key, no negotiation. Cantica datasets are available at Cantica Data.