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chainstack

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Updated 10-15 20:11

About this skill

Chainstack MCP Server

Endpoint: https://mcp.chainstack.com/mcp

Access tiers

The server has two tiers of access from the same endpoint.

No API key required (just connect to the URL, no auth header needed):

  • search_docs — search Chainstack documentation
  • get_doc_page — get full content of a documentation page
  • get_platform_status — check platform status, incidents, maintenances
  • contact_chainstack — submit a message to Chainstack's team (sales, support, general)
  • get_chainstack_pricing — live pricing snapshot (plan tiers, feature matrix, add-ons, dedicated-node catalog)

API key required (pass Bearer <chainstack-api-key>):

  • All platform tools: get_organization, list_projects, create_project, get_project, update_project, delete_project, list_nodes, get_node, create_node, update_node, delete_node, get_deployment_options
  • request_testnet_funds — top up a testnet address from Chainstack's faucet

Get an API key at https://console.chainstack.com/user/settings/api-keys

Node tiers

Chainstack has two node tiers. Picking the right one is critical when deploying.

Global Nodes (cloud CC-0016, provider chainstack_global):

  • Load-balanced across regions, routes to nearest location
  • Deploys instantly
  • Available on all plans including free
  • Best for: getting started, general RPC access

Trader Nodes (clouds CC-0020 through CC-0028, provider chainstack_managed):

  • Region-bound, dedicated resources
  • Deploys in 3-6 minutes
  • Paid plans only
  • Full and archive modes available
  • Best for: low-latency trading, MEV, heavy indexing

The node_tier field in tool responses shows "Global" or "Trader" for clarity.

Workflows

Deploy a node

This is a multi-step flow. Always follow this order:

  1. Get deployment options: Call get_deployment_options to see available blockchain/cloud/network combinations. Note the blockchain and cloud IDs you need.
  2. Confirm location with the user: Trader nodes are region-bound (e.g., London, Ashburn, Singapore). Always show the user the available regions and ask which one before deploying. Region affects latency and cannot be changed after deployment.
  3. Get or create a project: Call list_projects to find an existing project, or create_project to make a new one. Note the project id (format: PR-123-456-789).
  4. Create the node: Call create_node with name, project, blockchain, and cloud from the previous steps.

Example: to deploy a Trader-tier Ethereum node in London:

  • From get_deployment_options, find the entry where protocol is "Ethereum", network is "Mainnet", and node_tier is "Trader" with region "London". Use its blockchain (e.g., BC-000-000-008) and cloud (e.g., CC-0020).
  • From list_projects, pick a project or create one.
  • Call create_node(name="my-eth-node", project="PR-...", blockchain="BC-000-000-008", cloud="CC-0020").

Trader nodes take 3-6 minutes to deploy. The response returns immediately with status: "pending". Use get_node to poll until status is "running".

Check platform status

Call get_platform_status() for overall status and active incidents. Pass a network parameter (e.g., "ethereum") to also get component-level status for that network.

No API key needed.

Search documentation

Call search_docs(query="...") with a natural language query. Returns a list of {title, link, page, snippet} for matching docs.chainstack.com pages.

To get the full content of a page, pass the page field from a search result straight into get_doc_page(page=...). Example: search returns {"title": "Ethereum trader nodes", "page": "docs/ethereum-trader-nodes", ...} → call get_doc_page(page="docs/ethereum-trader-nodes"). The full URL from link is also accepted (the leading domain, leading slash, anchor, and .mdx extension are all stripped automatically).

No API key needed. Useful for finding RPC method references, deployment guides, and API examples.

Manage projects

Projects are containers for nodes.

  • list_projects — see all projects (returns id, name, description, type, networks)
  • get_project(project_id) — full project details
  • create_project(name, description) — create a new container
  • update_project(project_id, name, description) — rename or update description
  • delete_project(project_id) — irreversible, deletes the project

Manage nodes

  • list_nodes — all nodes with status, endpoints, tier, region
  • get_node(node_id) — full details including cloud, blockchain, API namespaces
  • update_node(node_id, name) — rename a node
  • delete_node(node_id) — irreversible, deletes the node

Contact Chainstack

Call contact_chainstack(message, category, email, name) to submit a message to Chainstack's team. The tool posts to HubSpot (same form as chainstack.com/contact/).

  • category: one of sales (pricing, quotes, upgrades), support (errors, bugs, how-to), or general (everything else). Default: general. For feature requests, point users to https://ideas.chainstack.com (product) or https://github.com/chainstacklabs/mcp-server/issues/new (MCP server) instead.
  • email and name are required — ask the user if you don't have them.
  • Compose a detailed message with the user's context (plan, chains, errors, use case) so the team can route and reply efficiently.
  • Always confirm with the user before submitting — messages go to Chainstack's CRM.
  • If the MCP client is configured with an API key, the submission is automatically enriched with the user's org info.
  • Rate-limited to 20 submissions per hour. For urgent issues, point users to https://support.chainstack.com/hc/en-us/requests/new to file a support ticket.

No API key required, but enrichment is richer with one.

Tip: If the user hits a limit of what self-serve can do — node customizations (transaction pool settings, gas caps, custom EVM tracers, resource scaling, private networking), Enterprise plan inquiries, custom SLAs — use contact_chainstack with category="sales" to submit the request. Include what they need and why. Chainstack's team is open to customizations beyond what's listed in the docs; they explicitly say "feel free to check with us for any additional customization."

Request testnet funds

Call request_testnet_funds(network, address) to top up a testnet address.

  • network: one of sepolia, hoodi, base, amoy, bnb-testnet, zksync-testnet, robinhood, hyperevm, plasma, monad, ton, or solana.
  • address: destination address. EVM hex for EVM chains, TON address for ton, base58 public key for solana. Validated server-side.

The faucet tops the address up to the per-network cap (e.g. 0.5 ETH on sepolia) — it doesn't send a fixed drip. If the address already holds more than the cap, the call fails. Describe the behavior to the user as "top up", and show the returned amountSent so they see the actual delta sent.

Returns {network, amountSent, transaction} on success. On per-address cooldown the error message includes nextFaucetAvailable (ISO 8601 timestamp) so you can tell the user when they can retry.

API key required. Rate limiting is tracked per organization by the faucet. If the user doesn't have a key, point them to https://console.chainstack.com/user/settings/api-keys and have them add it to the MCP client config as Authorization: Bearer <key>. Never ask the user to paste their API key in chat.

Answer pricing questions

Call get_chainstack_pricing() (no arguments) for a live snapshot of Chainstack's public pricing. Returns:

  • pricing_markdown — raw markdown from chainstack.com/pricing.md. Read this for plan tiers, feature matrix, add-on pricing, support levels, PAYG details, and provider comparisons. Marketing owns this file and its structure changes freely — parse it yourself at read time rather than expecting pre-structured fields.
  • dedicated_catalog — user-orderable per-chain dedicated-node SKUs (~87 entries) with protocol, network, mode, client, flavor, regions (slugs like sgp1), plans_allowed, and USD prices (compute_cost_per_hour_usd, storage_cost_per_hour_usd, monthly_total_usd). Already filtered and unit-converted.
  • region_legend — slug → human city map ({"sgp1": "Singapore", ...}) covering every slug that appears in the catalog. Use for display; the per-entry regions list keeps the slug as the canonical identifier.
  • disclaimers — list-price caveats (Enterprise "from" pricing, etc.).
  • warnings, sources, fetched_at — operational metadata.

This tool returns the menu. You do the arithmetic. Example flows:

  • "I expect 50M RU/mo and need archive data — which plan?" Read the feature matrix in pricing_markdown to find archive availability, then the plans table for included RU and extra usage per 1M RU; compute bill at 50M.
  • "I'm on Growth and did 35M RU last month — my bill?" From pricing_markdown: $49 + (35 − 20) × $15 = $274.
  • "Dedicated ETH archive in London — cost?" Filter dedicated_catalog where protocol == "Ethereum" and mode == "archive" and "lon1" in regions; return monthly_total_usd plus the plans that can order it.

No API key required. Call this before quoting prices — don't recite from memory. If a source fetch fails, check warnings[] and sources[*].ok; the tool always returns 200 with whatever data was reachable.

Per-method RU nuance: pricing.md only describes plan-level rates (Full Node = 1 RU, Archive Node = 2 RU). For per-method billing (some EVM archive-state methods and all debug/trace are 2 RU), call search_docs for request units or get_doc_page("docs/request-units").

Migrate from another provider

When a user wants to move a project to Chainstack from another RPC provider — QuickNode, Alchemy, or any other — fetch the migration runbook and follow it:

get_doc_page(page="docs/migrate-to-chainstack-with-ai")

It's an executable Assess → Plan → Implement guide: scan the codebase for non-Chainstack endpoints, verify coverage (search_docs, get_deployment_options), estimate current spend vs. Chainstack, then repoint endpoints after the user approves.

Estimating savings:

  • QuickNode — usage is readable via its Admin API (GET https://api.quicknode.com/v0/usage/rpc). Have the user create an Admin API key at dashboard.quicknode.com/api-keys and export it locally (export QUICKNODE_API_KEY=...), then pass -H "x-api-key: $QUICKNODE_API_KEY" in curl. Never ask the user to paste the key into chat.
  • Alchemy — usage is readable via the Alchemy CLI (@alchemy/cli). Have the user install it (npm i -g @alchemy/cli, needs Node.js 22+) and run alchemy auth login once (a browser sign-in to their own account — there's no headless API-key path for usage), then alchemy --json usage summary. Read .data.totals.last30Days.usd (spend) and .data.totals.last30Days.amount (compute units); .data.usageLimit is their plan cap. Per-network trend: alchemy --json usage timeseries --granularity day --metrics usd,amount --group-by network --start-date <date>. If they'd rather not install the CLI, a screenshot of the dashboard Usage/Billing page still works.
  • Either way, call get_chainstack_pricing for the Chainstack side — pricing.md already carries the QuickNode/Alchemy → RU conversion multipliers and the migration savings framing. Do the arithmetic from that live snapshot; don't hardcode numbers.

Using via curl

The server is fully curlable. JSON-RPC 2.0 over HTTP with Server-Sent Events responses. Parse the data: line from the SSE response for the JSON-RPC result.

Step 1. Initialize a session (no auth needed). The MCP spec requires clientInfo.name and version — set them to identify your agent (any stable string works — e.g. pi, kimi-k2, your-tool):

SESSION_ID=$(curl -sD - -X POST https://mcp.chainstack.com/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"<your-agent-name>","version":"<your-version>"}}}' \
  | grep -i mcp-session-id | cut -d' ' -f2 | tr -d '\r')

Step 2. Call a public tool (no API key needed):

curl -s -X POST https://mcp.chainstack.com/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "MCP-Session-Id: $SESSION_ID" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_docs","arguments":{"query":"deploy ethereum node"}}}'

Step 3. Call an authenticated tool (requires CHAINSTACK_API_KEY env var):

curl -s -X POST https://mcp.chainstack.com/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Authorization: Bearer $CHAINSTACK_API_KEY" \
  -H "MCP-Session-Id: $SESSION_ID" \
  -d '{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"list_nodes","arguments":{}}}'

If CHAINSTACK_API_KEY is not set, guide the user to add it to their shell profile (e.g., ~/.zshrc, ~/.bashrc, or equivalent) so it persists across sessions:

export CHAINSTACK_API_KEY="your-key-from-console.chainstack.com/user/settings/api-keys"

Never ask the user to paste their API key in chat. Always use the $CHAINSTACK_API_KEY environment variable in curl commands.

Error handling

  • 401: No or invalid API key. Get one at console.chainstack.com > Settings > API keys.
  • 403: Insufficient permissions for this operation.
  • 404: Resource not found. Check the ID format (e.g., ND-123-456-789, PR-123-456-789).
  • 429: Rate limit exceeded. Wait and retry.

Updates

Latest version of this skill: https://mcp.chainstack.com/skill

If tools stop working or return unexpected errors, fetch the latest skill from the URL above and replace your local copy. Tool names, parameters, and workflows may change between versions.