BankrBot · rezearcher · Jul 17, 2026 · Jul 17, 2026 · Jul 17, 2026 · Jul 17, 2026
@@ -15,6 +15,7 @@ Bankr Skills equip builders with plug-and-play tools to build more powerful agen
 | [Uniswap](https://uniswap.org) | <details><summary><b>uniswap</b> suite (5 skills)</summary><ul><li><a href="uniswap-cca/">uniswap-cca</a> — Configure and deploy Continuous Clearing Auction (CCA) smart contracts — guided parameter setup, convex supply schedule generation, Q96 price calculations, and multi-chain CREATE2 deployment.</li><li><a href="uniswap-driver/">uniswap-driver</a> — Plan Uniswap swaps and liquidity positions then execute via deep links — verify tokens on-chain, research market conditions, and generate pre-filled Uniswap interface URLs across 12 chains.</li><li><a href="uniswap-hooks/">uniswap-hooks</a> — Security-first assistance for building Uniswap v4 hooks — threat modeling, permission flags analysis, NoOp attack prevention, delta accounting, and pre-deployment audit checklists.</li><li><a href="uniswap-trading/">uniswap-trading</a> — Integrate Uniswap swaps into frontends, backends, and smart contracts — V2/V3/V4 support via Trading API, Universal Router, or direct contract calls.</li><li><a href="uniswap-viem/">uniswap-viem</a> — EVM blockchain integration using viem and wagmi — wallet connection, contract reads/writes, real-time event subscriptions, multicall, and multi-chain support.</li></ul></details> | Uniswap integration suite — swaps, liquidity, hooks, CCA, and viem helpers. Each sub-skill installs independently from its own folder (expand the Skill column). |
 | [Alchemy](https://www.alchemy.com) | [alchemy](alchemy/) | Blockchain API access for all supported chains. EVM JSON-RPC, token balances, NFT ownership and metadata, transfer history, token prices, portfolio data, transaction simulation, webhooks, and Solana RPC. Supports API key, x402 pay-per-request (SIWE/SIWS + USDC), and MPP (Tempo/Stripe) access. |
 | [Zerion](https://zerion.io/agents) | [zerion](zerion/) | Interpreted crypto wallet data across 41+ chains. Portfolio values, token and DeFi positions, transaction history, PnL tracking, NFT holdings, gas prices, and swap quotes — enriched with USD values and protocol labels. Supports x402 pay-per-request ($0.01 USDC) and API key access. |
+| [Grey Ridge Signals](https://x402-data-api.sigrunner.workers.dev) | [grey-ridge-x402](grey-ridge-x402/) | Base-native x402 data. RPC reads (block, gas, balances, tx, receipt, wallet) enriched with **USD values** and EIP-7702 detection, plus crypto prices, cross-venue funding-rate arbitrage, DeFi yields, live Polymarket markets, and MCP-server security audits. Base-first (most x402 sellers are Ethereum-only), $0.001/call USDC via x402 (no API key) or free preview routes. 20-tool MCP server. |
 | [Base](https://base.org) | <details><summary><b>base</b> suite (5 skills)</summary><ul><li><a href="base-account/">base-account</a> — ERC-4337 smart wallet integration — Sign in with Base, one-tap USDC payments, gas sponsorship via paymasters, sub accounts, and spend permissions across 9 chains.</li><li><a href="base-deploy/">base-deploy</a> — Deploy and verify smart contracts on Base with Foundry — testnet faucet access via CDP, encrypted keystore management, BaseScan verification, and common troubleshooting.</li><li><a href="base-minikit/">base-minikit</a> — Migrate Mini Apps from MiniKit (OnchainKit) to native Farcaster SDK — async context patterns, hook-by-hook mappings, FrameProvider setup, and manifest configuration.</li><li><a href="base-network/">base-network</a> — Base Mainnet and Sepolia network configuration — RPC endpoints, chain IDs, explorer URLs, and wallet setup for Base blockchain development.</li><li><a href="base-node/">base-node</a> — Run a production Base node with Reth client — hardware sizing, port configuration, snapshot bootstrapping, security hardening, and sync monitoring.</li></ul></details> | Base ecosystem suite — account, deploy, minikit, network, and node. Each sub-skill installs independently from its own folder (expand the Skill column). |
 | [EthSkills](https://ethskills.com) | <details><summary><b>ethskills</b> suite (16 skills)</summary><ul><li><a href="ethskills-addresses/">ethskills-addresses</a> — Verified contract addresses for Uniswap, Aave, Safe, USDC, ENS, Chainlink, Lido, Aerodrome, and more — across mainnet and major L2s. All verified on-chain via eth_getCode as of February 2026.</li><li><a href="ethskills-audit/">ethskills-audit</a> — 500+ item EVM smart contract audit system across 19 domains. Runs parallel specialist agents, synthesizes findings, and files GitHub issues. Separate from the security skill — this is for auditing contracts you did not write.</li><li><a href="ethskills-building-blocks/">ethskills-building-blocks</a> — DeFi legos and protocol composability — Uniswap V4 hooks, Aave flash loans, ERC-4626 vaults, Aerodrome on Base, GMX/Pendle on Arbitrum. Dominant DEX per L2 and how to combine protocols safely.</li><li><a href="ethskills-frontend-playbook/">ethskills-frontend-playbook</a> — Complete build-to-production pipeline for Ethereum dApps — fork mode setup, IPFS deployment, Vercel config, ENS subdomain setup, and a full production checklist built around Scaffold-ETH 2.</li><li><a href="ethskills-frontend-ux/">ethskills-frontend-ux</a> — Frontend UX rules for Ethereum dApps — mandatory patterns for onchain buttons, four-state connect flows, token approval sequences, address display, USD values, and RPC configuration.</li><li><a href="ethskills-gas/">ethskills-gas</a> — Current Ethereum gas prices and real transaction costs in 2026 — counters the misconception that Ethereum is expensive. Covers mainnet vs L2 comparison, why gas dropped 95%+, and live gas trackers.</li><li><a href="ethskills-indexing/">ethskills-indexing</a> — How to read and query onchain data — events, The Graph, Dune, Ponder, Multicall3, and WebSocket subscriptions. Why you cannot loop through blocks and what to use instead.</li><li><a href="ethskills-l2s/">ethskills-l2s</a> — Ethereum L2 landscape — Arbitrum, Optimism, Base, zkSync, Unichain, Celo. How they work, how to deploy, how to bridge, and which to use when. Includes 2025–2026 updates like Celo migration and Polygon zkEVM shutdown.</li><li><a href="ethskills-orchestration/">ethskills-orchestration</a> — How an AI agent plans, builds, and deploys a complete Ethereum dApp. Three-phase build system: local fork, live testnet, production. Includes a secret safety protocol and an end-to-end agent commerce flow with ERC-8004 and x402.</li><li><a href="ethskills-qa/">ethskills-qa</a> — Pre-ship audit checklist for Ethereum dApps. Ship-blocking checks and should-fix checks covering wallet connection, button flows, contract verification, branding, RPC config, and mobile deep linking.</li><li><a href="ethskills-security/">ethskills-security</a> — Solidity vulnerabilities, defensive code patterns, and a pre-deployment audit checklist. Covers reentrancy, oracle manipulation, token decimals, SafeERC20, ERC-4626 inflation, infinite approvals, and MEV.</li><li><a href="ethskills-standards/">ethskills-standards</a> — Ethereum token and protocol standards — ERC-20, ERC-721, ERC-1155, ERC-4337, ERC-8004 agent identity, EIP-7702, EIP-3009 gasless transfers, and x402 HTTP payment protocol.</li><li><a href="ethskills-testing/">ethskills-testing</a> — Smart contract testing with Foundry — unit tests, fuzz testing, fork testing against live state, and invariant testing. What to test, what to skip, and what LLMs commonly get wrong.</li><li><a href="ethskills-tools/">ethskills-tools</a> — Current Ethereum dev tools in 2026 — Foundry, Scaffold-ETH 2, abi.ninja, Blockscout MCP, x402 SDKs, RPC providers, and block explorers. What actually works today and what changed from Hardhat era.</li><li><a href="ethskills-wallets/">ethskills-wallets</a> — Ethereum wallet creation, EOAs, smart contract wallets, Safe multisig, EIP-7702, and account abstraction. Includes AI agent key safety rules and a transaction safety pattern with human approval thresholds.</li><li><a href="ethskills-why/">ethskills-why</a> — Why build on Ethereum — the AI agent angle with ERC-8004 identity, x402 payments, composability, and permissionless deployment. Corrects common misconceptions about gas costs, terminology, and network status.</li></ul></details> | Ethereum development playbooks — security, gas, L2s, testing, tooling, standards, and more. Each sub-skill installs independently from its own folder (expand the Skill column). |
 | [Bankr](https://bankr.bot) | [bankr-twitter-agent](bankr-twitter-agent/) | Framework for creating, managing, and automating a Twitter/X agent with a persistent personality and voice. |

diff --git a/grey-ridge-x402/SKILL.md b/grey-ridge-x402/SKILL.md
@@ -0,0 +1,31 @@
+---
+name: grey-ridge-x402
+description: Base-native x402 data + token security for AI agents — pay-per-call on Base USDC, no account or API key. Use BEFORE an agent buys/sells a Base token (honeypot / rug / proxy / mint-authority check), or when it needs Base-chain RPC reads (balances, gas, tx, wallet — enriched with USD values), crypto prices, cross-venue funding-rate arbitrage, DeFi yields, live Polymarket markets, or an MCP-server security audit. Base-native (most x402 data sellers are Ethereum-only) and USD-enriched. Triggers on token safety, honeypot, rug pull, is this token safe, can I sell, proxy/upgradeable, mint authority, Base RPC, wallet balance, funding rate, DeFi yield, Polymarket, crypto prices, MCP security scan.
+---
+
+# Grey Ridge Signals — Base-native x402 Data + Token Security
+
+Agent-native, pay-per-call data on **Base** (USDC via x402 — no account, no API key).
+
+## Token security — check BEFORE you trade ($0.02)
+`GET /chain/token-security?token=0x...` — **the "can I safely buy/sell this Base token?" check every trading agent needs.** Runs real compute (not a lookup): a live `eth_call` state-override **honeypot simulation** (funds a synthetic wallet, attempts a transfer, observes revert), **proxy/upgradeability detection** (EIP-1967 / UUPS / legacy OZ slots), a **bytecode red-flag scan** (mint / pause / blacklist / fee-setter authorities), and **ownership state** (renounced vs. active owner) → a `risk_score` + `clear|review|block` verdict + human-readable flags. Free preview: `curl -s https://x402-data-api.sigrunner.workers.dev/chain/token-security/preview`
+
+## The rest of the suite
+- **Base RPC** ($0.001): block, gas (EIP-1559 + `gas_price_usd`), ETH/ERC-20 balances (+ `balance_usd`), tx, receipt (+ L1-fee breakdown), wallet bundle, EIP-7702 detection.
+- **Crypto signals**: prices (+ 24h change), cross-venue funding-rate arbitrage (HL/OKX/dYdX), DeFi yields (risk-adjusted).
+- **Prediction markets**: live Polymarket (bestBid/ask/spread, tags).
+- **Security**: on-demand MCP-server audit (tool-poisoning / prompt-injection).
+
+## Access
+- **x402 (no account)**: pay $0.001-$0.10 USDC per call on Base — agent pays inline, no API key.
+- **Free preview** routes to try with no wallet.
+
+## MCP install (22 tools)
+```json
+{"mcpServers":{"grey-ridge-x402":{"type":"streamable-http","url":"https://x402-data-api.sigrunner.workers.dev/mcp"}}}
+```
+
+## Research -> Execute
+Grey Ridge is the **Base data + safety layer**: vet a token, price a wallet in USD, find funding/yield/PM edges — then hand off to Bankr for **execution**.
+
+Docs: https://x402-data-api.sigrunner.workers.dev/llms.txt
diff --git a/grey-ridge-x402/catalog.json b/grey-ridge-x402/catalog.json
@@ -0,0 +1,21 @@
+{
+  "schemaVersion": 1,
+  "slug": "grey-ridge-x402",
+  "provider": "Grey Ridge Signals",
+  "providerUrl": "https://x402-data-api.sigrunner.workers.dev",
+  "demo": {
+    "title": "grey-ridge-x402.sh",
+    "language": "bash",
+    "code": "# Free preview \u2014 no wallet needed\ncurl -s https://x402-data-api.sigrunner.workers.dev/chain/gas-price/preview\n\n# Base RPC wallet bundle with USD (pay $0.003 USDC via x402, no API key)\ncurl https://x402-data-api.sigrunner.workers.dev/chain/wallet?address=0x...\n\n# Cross-venue funding-rate arbitrage\ncurl -s https://x402-data-api.sigrunner.workers.dev/crypto/funding/preview\n\n# Live Polymarket markets\ncurl -s https://x402-data-api.sigrunner.workers.dev/pm/markets/preview"
+  },
+  "setup": [
+    "No signup: use x402 \u2014 pay $0.001-$0.10 USDC per call on Base, no API key",
+    "Try free: curl https://x402-data-api.sigrunner.workers.dev/chain/gas-price/preview",
+    "MCP (20 tools): add the streamable-http server at https://x402-data-api.sigrunner.workers.dev/mcp"
+  ],
+  "install": {
+    "type": "bankr",
+    "repoPath": "grey-ridge-x402",
+    "command": "install the grey-ridge-x402 skill from https://github.com/BankrBot/skills/tree/main/grey-ridge-x402"
+  }
+}