Yield Agentic Hub
Provides tools for interacting with Algorand, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the Algorand blockchain.
Provides tools for interacting with Bitcoin (native), including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the Bitcoin blockchain.
Provides tools for interacting with Ethereum, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the Ethereum blockchain.
Provides tools for interacting with NEAR, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the NEAR blockchain.
Provides tools for interacting with Solana, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the Solana blockchain.
Provides tools for interacting with Stellar, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the Stellar blockchain.
Provides tools for interacting with Sui, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the Sui blockchain.
Provides tools for interacting with TON, including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the TON blockchain.
Provides tools for interacting with XRP Ledger (XRPL), including discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, and attestation, enabling AI agents to perform financial operations on the XRP Ledger.
YieldAgentX402 SDKs
Public client libraries and integrations for YieldAgentX402 — the custody-free, policy-gated, receipt-backed execution layer for AI agents.
Platform · MCP Docs · Try without signup · Get API key
This repo hosts the open-source distribution packages. The platform itself (gateway, ShadeGuard policy engine, TEE attestation, orchestrator, Filecoin/BTFS anchoring) lives in a separate private repository — we ship the bits agents need to use the platform here.
Packages in this repo
Package | Registry | What it does |
npm: | Typed TypeScript SDK. Wraps all 16 MCP tools with first-class types, idempotency, webhook verify, Shade Agent helpers. Zero deps. Works in Node, browsers, Workers, Deno, Bun. | |
npm: | Stdio MCP wrapper. Drop into Claude Desktop / Code / Cursor / Windsurf to give any MCP client all 16 YieldAgentX402 tools across 18 chains. | |
Zero-dependency WebCrypto verifier for receipts + webhook signatures. Works in browser, Node 18+, Cloudflare Workers, Deno. | ||
CrewAI tool wrappers — policy dry-run, x402 payment, secure workflow, receipt verify, Shade Agent MPC wallet status. | ||
PyPI: | LangChain tool wrappers — discovery, policy preview, receipt verify, action planner (MCP gateway). |
Try without signup
curl -X POST https://api.yieldagentx402.app/mcp \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call",
"params":{"name":"yax_get_capabilities","arguments":{}}}'No API key required. Returns all 16 tools, 18 chains, rate limits, fees, supported runtime configs.
Want an instant test key?
curl -X POST https://api.yieldagentx402.app/api/apply \
-H "Content-Type: application/json" \
-d '{"agent_name":"my-agent"}'Returns a yax_test_* key (5 USD cap, 7-day expiry) for safe read-only tools.
What is YieldAgentX402?
A trust layer for agents that move money.
16 MCP tools — discovery, secure workflow execution, x402 payment settlement, policy dry-run, receipt verification, attestation, finance/CRM skill tools
18 chains — Base, Ethereum, Bitcoin (native), Starknet, NEAR, Solana, Stacks, BNB, Rootstock, Filecoin EVM + native, Aptos, Sui, TON, Tron, XRPL, Stellar, Algorand
Custody-free wallet — one NEAR MPC key authority derives EVM + BTC addresses on demand. No private keys held by the gateway or worker. Starknet uses Stark curve preset.
Intel TDX TEE attestation — mrEnclave verifiable at
/api/tee/reportHMAC-SHA256 receipts — every call returns a signed receipt
Filecoin + BTFS dual anchoring — permanent tamper-proof proof storage
x402 protocol settlement — 0.25% protocol fee, machine-verifiable in
/.well-known/x402asextra.protocolFeeBps: 25
Custody-free wallet — one MPC key, three chains
Chain | Address | Curve |
EVM (Base/Eth) |
| secp256k1 (MPC) |
Bitcoin (P2WPKH) |
| secp256k1 (MPC) |
Starknet |
| Stark (preset) |
Live manifest: https://shade-agent-worker.cryptoblac.workers.dev/api/wallet
Live infra
Surface | URL |
MCP endpoint | |
Public discovery |
|
Instant test key |
|
Ready-to-paste configs |
|
x402 manifest | |
MCP manifest | |
Status | |
TEE report | |
Shade Agent wallet | https://shade-agent-worker.cryptoblac.workers.dev/api/wallet |
Receipt verifier (UI) | |
Postman collection | https://yieldagentx402.app/postman/yieldagentx402.postman_collection.json |
Contributing
Issues and PRs on the public SDK packages are welcome here. Platform-level changes (gateway, policy engine, TEE worker) happen in a private repo — open an issue if you have a feature request and we'll triage.
License
MIT — see LICENSE.
Maintenance
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