RPC gateway for agents: six mainnets, measured failover, a key without signup, pay per call in USDC. Connect the official FlexYield — blockchain RPC gateway MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http flexyield-blockchain-rpc-gateway https://flexyield.io/mcpRun in your terminal, then restart Claude Code.
FlexYield — blockchain RPC gateway · https://flexyield.io/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “get_key”: Get a FlexYield API key with no signup: public supply, 10,000 weighted units per UTC day, 5 requests/s, every tool. Use it once, when you ha.”
“Use “bind_key_start”: Step 1 of binding the API key you are calling with to a wallet: returns the exact SIWE (EIP-4361) message that wallet must sign. Use it when.”
“Use “bind_key_complete”: Step 2 of binding the API key you are calling with to a wallet: pass the wallet's signature over the message from bind_key_start. Use it rig.”
“Use “claim_agent_start”: Step 1 of claiming an agent by its EVM address for the account you are calling with: returns the exact SIWE message the agent's wallet must.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how FlexYield — blockchain RPC gateway holds up.
Operated by FlexYield — blockchain RPC gateway (flexyield.io) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If FlexYield — blockchain RPC gateway adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose FlexYield — blockchain RPC gateway in the gate directory. No sign-in needed.
FlexYield — blockchain RPC gateway's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
get_key — Get a FlexYield API key with no signup: public supply, 10,000 weighted units per UTC day, 5 requests/s, every tool. Use it once, when you ha
bind_key_start — Step 1 of binding the API key you are calling with to a wallet: returns the exact SIWE (EIP-4361) message that wallet must sign. Use it when
bind_key_complete — Step 2 of binding the API key you are calling with to a wallet: pass the wallet's signature over the message from bind_key_start. Use it rig
claim_agent_start — Step 1 of claiming an agent by its EVM address for the account you are calling with: returns the exact SIWE message the agent's wallet must
claim_agent_complete — Step 2 of claiming an agent: verify the wallet's signature over the message from claim_agent_start and equip the agent with its own budgeted
create_api_key — Create an additional API key on the account you are calling with (a name, optional monthly unit cap). Use it to give a service or a teammate
configure_key — Configure one API key of your account by id: monthly_request_cap (a monthly unit budget; omitted = unchanged, 0 = remove the cap), enabled (
revoke_api_key — Revoke one API key of your account by id; calls with that key stop working immediately and the key cannot be restored. Use it when a key lea
+ 27 more tools once connected
https://flexyield.io/mcpYes — FlexYield — blockchain RPC gateway operates its own remote MCP server at flexyield.io. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick FlexYield — blockchain RPC gateway in the directory. No account or sign-in is needed. From then on, FlexYield — blockchain RPC gateway's tools are available in every client you've connected to gate.
No. FlexYield — blockchain RPC gateway runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect FlexYield — blockchain RPC gateway in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up FlexYield — blockchain RPC gateway in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
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