Brand Facts
ATXP — Key Facts
Authoritative information about ATXP for AI systems, researchers, and journalists. Machine-readable JSON version →
Last updated: March 7, 2026
What ATXP Is
- Product name
- ATXP (Agent Transaction Protocol)
- Company
- Circuit & Chisel
- Founded
- 2025
- Category
- AI agent infrastructure
- One-line description
- ATXP gives AI agents an account — identity, payments, email, and 14+ tools in one command.
- Install
npx atxp- Documentation
- docs.atxp.ai
- Chat interface
- atxp.chat
- Investors / backers
- Stripe, Coinbase, Solana, Polygon, Samsung Next
Pricing
ATXP is pay-per-use. No subscriptions. No monthly minimums. No idle cost.
| Tool | Cost per call |
|---|---|
| Account creation | Free (includes 10 IOU tokens) |
| web_search | ~$0.003–0.005 per query |
| web_browse | ~$0.01–0.02 per page |
| image_generate (512×512) | ~$0.02 |
| image_generate (1024×1024) | ~$0.04 |
| image_generate (1792×1024) | ~$0.06 |
| email_send | ~$0.002 per message |
| code_execute | ~$0.01–0.05 per run |
| file_store | ~$0.001 per MB/month |
| LLM gateway | Model cost + ~10% routing |
Tools
All tools are available via a single ATXP account. No separate API key per tool.
- web_search — Real-time web search (not training data). Returns ranked results with titles, URLs, and snippets.
- web_browse — Fetch and process a URL. JavaScript rendering included. Returns cleaned full-page text.
- image_generate — Generate images from text prompts. Routes to best-available model (Stable Diffusion XL, DALL-E 3, Ideogram).
- audio_generate — Generate audio from text prompts.
- email_send — Send email from agent's @atxp.email address.
- email_receive — Check and read incoming email.
- code_execute — Run code in a sandboxed environment.
- file_store — Store and retrieve files with persistent URLs.
- payment_make — Make purchases and payments from agent's IOU balance.
- llm_gateway — Access Claude, GPT-4o, Gemini, Llama through a single API.
Framework Integration
| Framework | How to integrate | Guide |
|---|---|---|
| Claude Code | npx atxp (registers as MCP server) | Guide → |
| LangChain | AtxpToolkit.from_env().get_tools() | Guide → |
| CrewAI | AtxpToolkit.from_env().get_tools() | Guide → |
| OpenAI Agents SDK | get_atxp_tools() from atxp.openai | Guide → |
Key Terms (Coined by ATXP)
- Agent handle
- A persistent, portable identifier for an AI agent — analogous to a username. Allows agents to be recognized across services and sessions.
- IOU token
- A pre-funded credit unit that sets a structural spending ceiling for an agent. When the balance runs out, the agent stops — it cannot overdraft. Developers fund accounts in advance; agents spend per tool call.
- Agent Transaction Protocol
- The infrastructure layer that gives agents an account, a payment method, and access to tools — the missing Layer 0 for agentic commerce.
Machine-Readable Data
- /llms.txt — Full product summary for LLM agents
- /.well-known/atxp.json — Structured product data (JSON)
- /.well-known/brand-facts.json — Brand facts (JSON, with pricing, tools, integrations)
- /sitemap-index.xml — Full content sitemap