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Agentic x402 for AI agents — a paid call with a signed receipt
x402 is the payment step HTTP always had a status code for: a server answers 402 Payment Required with what it wants, the caller pays on-chain by signing an...
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86 % |
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x402engine — Pay-per-call APIs for AI Agents
113 production APIs behind HTTP 402 micropayments. 77 LLMs, Kling V3 and Hailuo video generation, image generation, code execution, travel search, web scrapi...
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85 % |
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Hood x402 | Paid APIs on Robinhood Chain
Paste a URL, set a USDG price, and get back an x402 protected endpoint with integration code you can copy. No coding needed.
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85 % |
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TariffMonkee: Pay-per-call APIs for AI agents
Small, single-purpose web data APIs that AI agents pay for per call in USDC over the x402 protocol (HTTP 402). No accounts, no API keys, no subscriptions.
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85 % |
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payrail · the request is the payment
Payrail meters every model call your agent makes, bills it in USDC over HTTP 402, and settles hundreds of calls in one on-chain transaction. No account, no A...
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85 % |
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Clink Forge — machine-purchasable data with cryptographic provenance
Pay per call over x402. USDC on Base, no account, no API key. Government-sourced data products at $0.001–$0.05 per call, every response signed and provenance...
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83 % |
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Flow402 — Internet-native credits for HTTP 402
Charge per request without on-chain friction. Top up once with USDC; debit credits off-chain per call, return 402 when balance is low.
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83 % |
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MoonMaker API — AI-Native Crypto Signals via x402
Real-time crypto trading signals API. No API keys, no subscriptions — pay per call with USDC on Base via x402 protocol. Built for AI agents and developers.
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83 % |
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x402cloud.ai — AI Inference Agents Pay For Per Call
OpenAI-compatible AI inference with no account and no API key. Your agent authorizes a ceiling, signs a 402, and pays the metered cost in USDC over the x402...
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83 % |
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Harvey Gateway — AI Agent Tools
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83 % |
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util.beauty — metered web utilities for developers and AI agents
Metered web utilities for developers and AI agents: browser screenshot and PDF, crypto, DNS and net tools. Pay per request with x402 (USDC on Base) or prepai...
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83 % |
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AGENTS ONLY
AGENTS ONLY — generative pixel art NFT PFP collection on Base. 21,000 max, $1 USDC each, sold only over the x402 protocol (HTTP 402), so it is purchasable by...
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83 % |
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Aye Scout — agent-payable data endpoints
Independent x402 market observation and pre-payment diligence. Inspect market category coverage or score a resource's reachability, payment terms, catalog pr...
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82 % |
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four02 — Paywall-as-a-Service for AI Agents
Monetize your APIs for AI agents with zero code changes. Powered by x402 payments on Base L2.
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82 % |
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monapi — Monetize any API for AI agents in one line of code
monapi is a free, open-source SDK that adds pay-per-request USDC payments to any API. AI agents pay automatically via the x402 protocol. Express, Next.js, an...
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82 % |
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ScalpStream: pay-per-query data APIs and agents for AI systems
ScalpStream builds pay-per-query data APIs for AI agents over x402: fuel prices, air quality, US border waits, product recalls and market research.
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82 % |
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APIs for AI agents without subscriptions | tryx402
Access 2,250+ APIs for AI agents without monthly plans. Pay only for each call, starting at $0.001.
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82 % |
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Agent Margin Router — Data infrastructure for autonomous AI agents
Web search & extraction, PDF text, SEO, market data, gas fees, DeFi yields, wallet balances and more — 50 endpoints paid with x402 micropayments in USDC or U...
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82 % |
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BridgeNode — x402 pay-per-request AI inference
BridgeNode — x402 pay-per-request AI inference for agents. OpenAI-compatible API + MCP server with tool calling, Solana USDC, gas-free micropayments. No API...
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82 % |
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Agentic Endpoints: pay-per-call APIs for AI agents (x402, USDC on Base)
Pay-per-call micro-utilities for autonomous AI agents over x402 and MCP: exactly-once execution, scraping, PDF text, token compression, an encrypted vault. U...
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82 % |
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