Strata MCP

Official capability-gated MCP access to Strata and Sonar. The server delegates to @stratabook/sdk: it follows the live capability catalog and contains no separate quote or execution logic.

Local stdio

npx -y @stratabook/mcp

Example client configuration:

{
  "mcpServers": {
    "strata": {
      "command": "npx",
      "args": ["-y", "@stratabook/mcp"]
    }
  }
}

The tools currently available are:

• strata_capabilities

• strata_action_graph

• strata_platform_graph

• strata_status

• strata_candles

• strata_marks

• strata_twaps

• strata_twap_challenge

• strata_twap_cancel

• strata_twap_prepare

• strata_twap_submit

• strata_portfolio

• strata_portfolio_history

• strata_market_making_status

• strata_market_making_reputation

• strata_vault_status

• strata_vault_setup, strata_vault_deposit, strata_vault_withdraw, strata_vault_delegate, strata_vault_policy, strata_vault_pause — prepare owner actions with Strata as sponsored fee payer

• strata_vault_submit — submit the owner-signed preparation; Strata pays and broadcasts

• strata_vault_submission — durable outcome of a submission

• strata_rewards

• strata_referrals

• strata_referral_link — prepare externally signable consent or submit the signed link

• strata_referral_claim — prepare externally signable consent or submit the signed claim

• strata_bugs

• strata_bug_submit — prepare externally signable bytes or submit the signed report

• strata_markets, when markets.read is enabled for MCP

• strata_quote and strata_exact_output_quote (spend X / receive at least Y), when market quotes are enabled for MCP

• strata_swap_quote, when catalog-asset swap quotes are enabled for MCP

• strata_execution_challenge, when trade.prepare is enabled for MCP

• strata_execution_prepare, when trade.prepare is enabled for MCP

• strata_execution_submit, when trade.submit is enabled for MCP

• strata_execution_status — recover a durable immediate-execution receipt

• strata_order_challenge, when orders.prepare is enabled for MCP

• strata_order_prepare, when orders.prepare is enabled for MCP

• strata_order_submit, when orders.submit is enabled for MCP

• strata_order_status, when orders.submit is enabled for MCP

Every initialization response carries the compact Strata Agent Harness. The server also publishes the complete harness as the strata://agent-harness/v1 resource and provides a strata_start prompt for applying it to one concrete objective. The live executable topology is also available as strata://action-graph/v1. The complete entity, operation, and workflow map is available as strata://platform-graph/v2.

The tool list follows the live public policy. Every call rechecks that policy, so a disabled capability stops immediately even if a client cached an older tool list.

Related MCP server: EODHD MCP Server

Hosted Streamable HTTP

The managed public endpoint is:

https://api.stratabook.app/mcp

For a self-hosted or development process:

strata-mcp --transport http --port 8787

Place TLS and request limiting in front of /mcp. Loopback is the default bind; the official MCP HTTP helper enforces Host validation for local installations.

GET /health is a readiness check, not a shallow process-liveness response. It validates the live capability catalog against the bundled public contract and agent harness. A stale SDK or incompatible contract therefore returns 503 and blocks release activation. The same process serves the reviewed discovery manifest at /.well-known/strata-agent.json and the graph at /.well-known/strata-action-graph.json.

Safety

The external agent owner decides what its agent may do and configures its signer. MCP can request authorization bytes, prepare quote-bound trades, bounded TWAP placement or cancellation, or atomic place, cancel, cancel-all, replace, or bounded batch order controls, and submit the externally signed result. It accepts public keys, detached signatures, and signed transactions, never private keys, seed phrases, or wallet secrets. Amounts are token atoms encoded as base-10 strings.

Quotes default to zero tolerance. maximumToleranceBps is the agent's own floor (the most it accepts below the quoted output); price_impact_pct is measured from the book. They are unrelated, and every quote result states both.