Abstraxn Agent Kit's public MCP server gives any AI agent instant access to Web3 and market data with no signup or API key required. Query live blockchain data including block numbers, gas prices, transaction status, and ERC-20 token information and prices across major EVM chains and Solana. You can also access x402engine's pay-per-call APIs for crypto market data, wallet, token and ENS lookups, on-chain transaction simulation, and flight and hotel search. Paid calls are settled directly from the caller's own crypto wallet through the x402 protocol, while Abstraxn never holds or custodies funds. Ideal for AI agents that need real-time blockchain, Web3, and market data without onboarding friction.
Run: claude mcp add --transport http abstraxn https://abstraxn-agent-kit--developer-5ke1.run.tools
Can I add Abstraxn as a connector in ChatGPT or Claude.ai?
Yes — it’s a remote MCP server, so no local install is needed. ChatGPT: Settings → Connectors → Advanced → Developer mode → Add connector, then paste https://abstraxn-agent-kit--developer-5ke1.run.tools. Claude.ai: Settings → Connectors → Add custom connector, then paste the same URL.
# EmblemAI MCP
EmblemAI is a hosted Model Context Protocol server that gives AI agents a full-featured crypto wallet plus **200+ tools** for trading, DeFi, NFTs, and on-chain analytics across **7 blockchains**:
- **Bitcoin** — native BTC, Ordinals inscriptions, Runes, BRC-20, Stamps / SRC-20, Alkanes, rare sats
- **Solana** — SOL + SPL tokens, Jupiter-routed swaps, Solana memecoin discovery, RugCheck
- **Ethereum** — native ETH, ERC-20, ERC-721 / ERC-1155 NFTs, ETH swaps
- **Base** — native ETH on L2, ERC-20, NFTs, Clanker discovery
- **BSC** — native BNB, BEP-20, FourMeme bonding-curve discovery and trading
- **Polygon** — native MATIC, ERC-20, swaps
- **Hedera** — HBAR, HTS tokens, MemeJob discovery and trading
Plus prediction markets via **Polymarket**, market research, conditional orders (limit / stop-loss / take-profit) on supported chains, and on-chain analytics.
## Quick start
The Smithery deployment connects directly to the hosted EmblemAI MCP at `https://emblemvault.ai/api/mcp`. You only need an API key:
1. Sign in at [emblemvault.ai](https://emblemvault.ai).
2. Open **Settings → Vault Access Key** and copy your key.
3. Paste it as the `apiKey` parameter in the Smithery connection form.
Browsing tools (`tools/list`) works anonymously, so you can inspect the catalog before authenticating.
## Auth modes
| Mode | When to use | Scope |
| --- | --- | --- |
| **API key** (`x-api-key`) | Unattended agents, cron jobs, server-to-server, any workflow that mints tokens or sends transactions | Full read + write, no expiry until revoked |
| **OAuth 2.0 + PKCE** (RFC 7591 Dynamic Client Registration) | Interactive sessions where a human can click a browser popup | Read-only `vault:read`, short-lived JWT |
| **x402 micropayments** | Pay-per-call across the public catalog without an account | Per-tool-call USDC settlement |
The Smithery deployment defaults to the API-key path, configured via the `apiKey` parameter (sent to the upstream as the `x-api-key` header).
## Enabling transactional tools
State-changing tools (sends, swaps, mints, conditional-trade creates) are hidden by default. Opt in by setting the `enableTransactions` parameter to `enabled` — Smithery's gateway forwards it as the `x-mcp-transactions: enabled` header. Transactional tools then surface in `tools/list` with a `-transaction` suffix, which makes them easy to allow- or block-list with wildcard rules in the host client.
Note: transactional tools also require API-key auth — OAuth bearers do not pass the `vault:write` gate.
## Specialized listings (filter)
The full 200-tool surface is wide. For Bitcoin-only, Solana-only, or any other curated slice, use the stdio bridge `@emblemvault/mcp` (npm) and set:
```
EMBLEMAI_TOOLS_FILTER="bitcoin*,*Rune*,*Inscription*"
```
The bridge applies the glob filter to both `tools/list` and `tools/call`, exposing only the matching subset to the host LLM. The hosted Smithery deployment always exposes the full catalog; the filter is a stdio-side feature.
## Categories
Trading · DeFi · NFTs · Wallet · Bitcoin Ordinals · Polymarket prediction markets · Cross-chain · Market analytics · Research / web search.
## Links
- Hosted MCP: `https://emblemvault.ai/api/mcp`
- Stdio bridge: `@emblemvault/mcp` ([github](https://github.com/EmblemCompany/Agent-skills/tree/main/mcp-bridge))
- Repo: [EmblemCompany/Agent-skills](https://github.com/EmblemCompany/Agent-skills)
- Web app: [emblemvault.ai](https://emblemvault.ai)
- Glama listing: [glama.ai/mcp/servers/EmblemCompany/Agent-skills](https://glama.ai/mcp/servers/EmblemCompany/Agent-skills)
- Docs: [emblemvault.ai/docs/mcp](https://emblemvault.ai/docs/mcp)
## License
MIT (stdio bridge + documentation). Hosted MCP is managed SaaS.
