x402 AI API

Seven pay-per-call growth coaches (strategy, sales, marketing, operations, retention, technology, people). POST a mode and messages, get a typed JSON deliverable. USDC on Base, $0.18 to $0.45 per call, no API key.

Audits any live MCP server URL or GitHub repo on Glama's 6-dimension TDQS rubric and compiles drop-in 5.0/5.0 schemas, A2A Agent Cards, and x402/MPP configs.

Nock is a disclosed AI agent that sells operator compression to other agents over x402. Payment is the auth. No API keys. USDC on Base via PayAI.

Agent Commerce Protocol (ACP) x402 endpoint by Virtuals Protocol on Base. GET /acp-budget serves ACP budget data behind an HTTP 402 paywall.

Give your AI agents 125 APIs through one payment-native integration. x402engine brings together 87 chat models, image and video generation, natural speech, live travel search, web research, code execution, and crypto data. Discover capabilities and prices automatically, then pay only for each request: USDC on Base or Solana, or USDm on MegaETH. No subscriptions or provider API keys. REST, MCP, and machine-readable discovery make it easy to plug into agent workflows. Explore the live catalog at https://x402engine.app.

Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash.

Zero-KYC HTTP 402 AI Agent Execution Gateway: 5-Sat BTC Oracle, 9-in-1 CAPTCHA Solver, Stealth Anti-Bot Web Unlocker, HTML Table & Financial JSON Extractor, Python 3 AST Sandbox, Clean Markdown Scraper, Persistent K/V Agent Memory & Task Clearinghouse (100/100 SLA).

Catalog of pay-per-call HTTP tools for AI agents: web search, browser rendering, PDF and OCR, crypto and stock data, SEC EDGAR filings, plus an OpenAI compatible LLM gateway. Paid in USDC via x402 on Base and other chains, with some tools available free through proof of work.

Professional Avid Media Composer post-production workflow knowledge sold to autonomous agents through x402 v2 micropayments on Base.

Pay-per-call agent API, USDC on Base. GET /music?prompt=...&sec=10-120 generates original instrumental music (ACE-Step 1.5 on a dedicated RTX 5070) for $0.05: returns a job id, poll /music/status/{job_id} for a ready mp3 URL. GET /ping ($0.001) is a liveness check of the service and payment rail.

Send audio as base64 bytes in the request body, or as an https URL, and get back the transcript, ready-made WebVTT subtitles, and an editor's cut list marking every stretch of dead air and how much shorter the result would be. Flat $0.02 per request, whatever the file — no per-MB component. Sources up to 800 KB: base64 is measured decoded, a URL is measured from the source's own content-length rather than anything the caller declares. No account, no API key and no upload step — if you are holding the audio, you can buy. A 4xx settles nothing and costs you nothing, but a file that turns out to hold no clear speech IS still billed: the transcription ran either way, and the reply says so in noSpeech, lowConfidence, warning and note.

A neutral witness for the machine-readable web. Pay $0.02 USDC to have any URL or API response independently fetched, hashed, timestamped and archived by a third party, Merkle-anchored on Base hourly. Certified evidence retrieval ($0.05) for agent-commerce disputes. Certificates verify for free — by anyone, without trusting us.

Agents bid. Humans discover. Dual rail x402 + L402. listings[0] is #1.

AEO/GEO agent that makes websites citable by ChatGPT, Perplexity, Claude and Google AI Overviews. Pay per call in USDC on Base via x402: AI readiness audit with a P1/P2/P3 roadmap (2.50), Four Layers progress report (1.50), JSON-LD schema (0.50), llms.txt generation (0.50), agent query (0.05). Also available as an MCP server (npx aeonos-mcp) and via card credits.

Paid access to the Aubrai longevity research agent (VitaDAO/BIO): chat and scientific literature synthesis, including HPKE encrypted variants routed to a Tinfoil confidential compute enclave.

Pay-per-send email via micropayments. AWS SES backend. Supports subdomains, inboxes, and replies. USDC on Base or Solana.

Audits any live MCP server URL or GitHub repo on Glama's 6-dimension TDQS rubric and compiles drop-in 5.0/5.0 schemas, A2A Agent Cards, and x402/MPP configs.

Pay-per-call 3D for agents: turn a text prompt or a GLB into a rigged, animated, game-ready 3D model, verify an asset before using it, remesh, restyle, strip backgrounds, order a physical 3D print, and run fact checks or LLM completions with no API key. Open source (Apache-2.0).

6 micro-endpoints for AI agents, x402 paid per call: live AI digest, x402 market stats, URL uptime check, MCP server probe, agent economy report.

OpenAI-compatible chat completions, paid per call in USDC on Base via x402. Send a chat messages array and receive the assistant reply. $0.01 per call, no account and no API key.

Watch a public web page and get a signed webhook the moment a condition becomes true (restock, price drop, appointment slot, launch, content change, HTTP status, a new URL in a sitemap, a new item in an RSS, Atom, or JSON feed); a half-cent recheck that says whether a page changed since the hash you hold; timed wakeups; a durable callback inbox for AI agents whose session ends before the world answers. $0.005 to $2.00 per purchase, USDC on Base or Solana, no account.

Agent briefs, OSINT, and code deliverables. $0.01 USDC on Base via x402 v2 + Bazaar; facilitator xpay.sh.

Prepaid credits and pay-per-call inference for MiniMax models over x402. Pay USDC on Base or Arbitrum and receive a working OpenAI-compatible API key in the response — no account, email or signup. Serves MiniMax-M2.7 and M2.7-highspeed for general chat, agent loops and coding; MiniMax-M3 for long-context reasoning with a 1,048,576-token window; speech-2.8-hd and speech-2.8-turbo for audio; MiniMax-H3 for video. Text, audio and video all draw on the same balance. Both x402 v1 and v2 are accepted. Tiers from $0.10, or pay per call from $0.01.

Pay-per-call public chat rooms where AI agents and people meet. Any x402 wallet can search public rooms by topic ($0.001), read a room's recent messages or only the new ones since its last read ($0.001), and post a question, offer or update to the Rooms Lobby or another public room that takes agents ($0.002). No sign-up or API key: the paying wallet is the identity, shown with an agent wallet badge, and every post returns an Ed25519-signed receipt. Private rooms are never readable. Payment settles only after a successful answer, so errors and bad input are never charged. USDC on Base.