mcp-coda

Install: uvx mcp-coda | PyPI | MCP Registry | Changelog

uvx mcp-coda                          # with writes
MCP_READ_ONLY=true uvx mcp-coda       # locked read-only: write tools are not listed

mcp-coda is a Model Context Protocol (MCP) server for Coda. It lets an AI assistant read and write Coda docs, pages, tables, and rows through the Coda API. It also runs formulas, manages permissions and folders, publishes docs, and triggers automations. The server exposes 54 tools, 12 resources, and 5 prompts. It supports the MCP 2026-07-28 specification (often called MCP 2.0) and stays compatible with 2025-11-25 clients. It works with Claude Desktop, Claude Code, Cursor, Windsurf, VS Code Copilot, and any MCP-compatible client. Runs in one of two modes: with writes, or locked read-only (MCP_READ_ONLY=true) so the 20 write tools are never offered to the model.

mcp-coda uses FastMCP, httpx, and Pydantic.

1-Click Installation

Tip: For other AI assistants (Claude Code, Windsurf, IntelliJ, Gemini CLI), visit the Coda MCP Installation Gateway.

# with writes
claude mcp add coda -e CODA_API_TOKEN=your-token-here -- uvx mcp-coda
# locked read-only
claude mcp add coda -e MCP_READ_ONLY=true -e CODA_API_TOKEN=your-token-here -- uvx mcp-coda

{
  "mcpServers": {
    "coda": {
      "command": "uvx",
      "args": ["mcp-coda"],
      "env": {
        "CODA_API_TOKEN": "your-token-here",
        "MCP_READ_ONLY": "true"
      }
    }
  }
}

# with writes
gemini mcp add -s user -e CODA_API_TOKEN=your-token-here coda uvx mcp-coda
# locked read-only
gemini mcp add -s user -e MCP_READ_ONLY=true -e CODA_API_TOKEN=your-token-here coda uvx mcp-coda

{
  "servers": {
    "coda": {
      "type": "stdio",
      "command": "uvx",
      "args": ["mcp-coda"],
      "env": { "CODA_API_TOKEN": "your-token-here", "MCP_READ_ONLY": "true" }
    }
  }
}

# with writes
codex mcp add coda --env CODA_API_TOKEN=your-token-here -- uvx mcp-coda
# locked read-only
codex mcp add coda --env MCP_READ_ONLY=true --env CODA_API_TOKEN=your-token-here -- uvx mcp-coda

uv pip install mcp-coda

Configuration

Supported Token Types

The server checks these environment variables in order — first match wins:

1. CODA_API_TOKEN
2. CODA_TOKEN
3. CODA_PAT

Generate tokens at coda.io/account#apiSettings. Tokens grant access to all docs accessible by the token owner. Tokens have no scope restrictions. Coda's sharing settings control doc-level access.

Compatibility

Protocol support

mcp-coda implements the Model Context Protocol 2026-07-28 specification, often called MCP 2.0. It also stays compatible with 2025-11-25 clients. A FastMCP client pinned to 2026-07-28 and a legacy client both list all tools and reach the Coda API over stdio. The companion code PR adds a regression test that checks tools/list with an in-memory client pinned to 2026-07-28.

• Spec version: MCP 2026-07-28 (MCP 2.0), backward compatible with 2025-11-25.
• Built on: FastMCP 4.x and the MCP Python SDK 2.x.
• Transports: stdio (default) and streamable-http (recommended for remote). sse (HTTP+SSE) still works, but the 2026-07-28 specification deprecates it, so the server prints a warning.
• Capabilities: tools, resources, and prompts. The server uses no Roots, Sampling, Logging, elicitation, or resource subscriptions, so the 2026-07-28 deprecations do not affect it.

Error results

An expected failure — a 404, a 401, a rate limit, or a write that reaches the read-only guard — comes back as a tool result with isError: true rather than a value the caller must inspect for an error key. (In locked read-only mode the write tools are hidden, so calling one returns an Unknown tool error; the error envelope below is the guard's own response, returned only when a client reaches a write tool anyway.) The result body is the text content: a JSON object with error, an actionable hint, and, where relevant, status_code, body, and retry_after. The result carries no structuredContent — the TypeScript MCP SDK validates structuredContent against the tool's output schema even when isError is true, so an error payload there would make strict clients reject the whole result. Unexpected exceptions (a bug in a tool) are also isError: true, their text is TypeName: message, and the server logs them with a traceback.

A successful result carries the Coda JSON object as structuredContent beside the pretty-printed text, and tools advertise no outputSchema: payloads pass the upstream fields through untyped, so strict clients validate nothing and receive the object directly rather than a double-encoded {"result": "<json>"} wrapper. A typed schema is opt-in per tool via @mcp.tool(output_schema=…).

Tools (54)

Resources (12)

The server exposes MCP resources that provide ambient context and do not consume tool calls.

Data Resources (live API)

Rules (static knowledge)

Guides (how-to)

Prompts (5)

The server provides MCP prompts — reusable task templates that clients can invoke.

Usage Examples

Docs & Pages

"List all my Coda docs"
→ coda_list_docs(is_owner=True)

"Get the content of page 'Sprint Planning' in doc d1"
→ coda_list_pages(doc_id="d1") → find page ID
→ coda_get_page_content(doc_id="d1", page_id_or_name="canvas-abc")

"Create a new doc from a template"
→ coda_create_doc(title="Q1 Planning", source_doc="template-doc-id")

Tables & Rows

"List all tables in doc d1"
→ coda_list_tables(doc_id="d1")

"Find rows where Status is 'Done'"
→ coda_list_rows(doc_id="d1", table_id_or_name="Tasks", query="Done")

"Insert a new row into the Tasks table"
→ coda_insert_rows(doc_id="d1", table_id_or_name="Tasks", rows=[{"cells": [{"column": "Name", "value": "New task"}]}])

"Update a row's status"
→ coda_update_row(doc_id="d1", table_id_or_name="Tasks", row_id_or_name="i-abc", row={"cells": [{"column": "Status", "value": "In Progress"}]})

Formulas & Controls

"Get the value of the TotalBudget formula"
→ coda_get_formula(doc_id="d1", formula_id_or_name="TotalBudget")

"Check the current value of the DateFilter control"
→ coda_get_control(doc_id="d1", control_id_or_name="DateFilter")

Permissions & Sharing

"Share a doc with a teammate"
→ coda_add_permission(doc_id="d1", access="write", principal_email="alice@example.com")

"List who has access to a doc"
→ coda_list_permissions(doc_id="d1")

Security Considerations

• Token scope: Coda API tokens grant access to all docs the token owner can access. Use a dedicated service account for production deployments to limit exposure.
• Read-only mode: Set MCP_READ_ONLY=true (or CODA_READ_ONLY=true) in the launch you control and the server starts locked: the 20 write tools and the write-workflow prompts are not listed, a call to one returns "Unknown tool", and the guard refuses any write that still reaches it. Nothing lifts the lock at runtime — not a false from another source, not a .env file, not tool arguments; any value other than false/0/no/off/empty locks, and --read-only can only raise it. The lock is only as strong as the launch: set it where users cannot edit it (a managed MCP config such as Claude Code managed-mcp.json, a container, k8s or systemd env, or a hosted HTTP deployment). A user who starts the server themselves controls its environment. A Coda token has no scopes, so this lock is the only read-only control.
• MCP tool annotations: Each tool declares readOnlyHint, destructiveHint, and idempotentHint for client-side permission prompts.
• No credential storage: The server does not persist tokens. It reads credentials from environment variables at startup.
• HTTP transport auth: Host/Origin protection is not authentication. Binding an HTTP transport to a non-loopback host requires CODA_HTTP_BEARER_TOKEN (min 16 chars); clients send Authorization: Bearer <token> and anything else gets a 401. Without it the server refuses to start on a non-loopback host.

Upgrading to 0.9.0

Two defaults changed. Both are breaking for callers that relied on the old behaviour:

• coda_publish_doc no longer lists docs in the public gallery by default. discoverable now defaults to False — publishing alone makes a doc reachable by URL; pass discoverable=True to list it in the Coda gallery. mode is now restricted to view, play, or edit.
• An HTTP transport on a non-loopback host now requires a bearer token. uvx mcp-coda --transport streamable-http --host 0.0.0.0 (or any non-loopback host) exits with an error unless CODA_HTTP_BEARER_TOKEN (min 16 chars) is set; clients then send Authorization: Bearer <token>. Binding to 127.0.0.1 is unchanged.

Rate Limits & Permissions

Rate Limits

Coda enforces per-token rate limits (varies by plan). When Coda rate-limits a request, the tool returns a 429 error with retry_after seconds. The server does not retry. Wait that many seconds, then retry. Most paginated endpoints default to 50 results per page (coda_list_docs 25, coda_list_columns 100). Use limit to adjust.

Async Mutations

Coda processes write operations (insert, update, delete rows) asynchronously. Tools return a requestId. Check it with coda_get_mutation_status to confirm completion.

Required Permissions

Access Control

CLI & Transport Options

# Default: stdio transport (for MCP clients)
uvx mcp-coda

# HTTP transport (SSE or streamable-http)
uvx mcp-coda --transport sse --host 127.0.0.1 --port 8000
uvx mcp-coda --transport streamable-http --port 9000

# Binding to a non-loopback host requires a bearer token
CODA_HTTP_BEARER_TOKEN=$(openssl rand -hex 32) \
  uvx mcp-coda --transport streamable-http --host 0.0.0.0 --port 9000
# Clients authenticate with the token:
#   curl -H "Authorization: Bearer $CODA_HTTP_BEARER_TOKEN" http://host:9000/mcp

# Config comes from env vars
CODA_API_TOKEN=your-token uvx mcp-coda --read-only

--coda-token still works but is deprecated and hidden from --help: it exposes the token to ps and shell history. Use CODA_API_TOKEN.

The server loads .env files from the working directory automatically via python-dotenv.

Docker

The image is a minimal, non-root python:3.13-slim build. The image defaults to locked read-only (MCP_READ_ONLY=true); pass -e MCP_READ_ONLY=false to allow writes.

docker build -t mcp-coda .

# stdio (default), locked read-only
docker run -i --rm -e CODA_API_TOKEN=your-token mcp-coda

# HTTP transport on a non-loopback host requires a bearer token (min 16 chars);
# clients then send Authorization: Bearer <token>
BEARER=$(openssl rand -hex 32)
docker run --rm -p 9000:9000 \
  -e CODA_API_TOKEN=your-token \
  -e CODA_HTTP_BEARER_TOKEN="$BEARER" \
  mcp-coda --transport streamable-http --host 0.0.0.0 --port 9000

FAQ

Does mcp-coda support MCP 2.0 (the 2026-07-28 spec)?

Yes. mcp-coda implements the MCP 2026-07-28 specification, commonly called MCP 2.0. It also works with 2025-11-25 clients.

Which transports does mcp-coda support?

The server supports stdio (the default) and streamable-http. It also supports sse, but the 2026-07-28 specification deprecates it. Prefer streamable-http for remote connections.

Can I run mcp-coda read-only so the assistant cannot change anything?

Yes. Start it with MCP_READ_ONLY=true (or CODA_READ_ONLY=true). The 20 write tools and the write-workflow prompts are then not listed at all, so the model never sees them; a call to one returns "Unknown tool", and nothing can turn writes back on while the process runs. Set it in a launch you control — a managed MCP config, a container or systemd env, or a hosted deployment — because a user who starts the server themselves can start it without the variable. A Coda token has no scopes, so this lock is the only read-only control.

What token scopes does mcp-coda need?

Coda tokens have no scopes. A token reaches every doc its owner can reach. Coda's sharing settings control doc-level access. Use a dedicated service account to limit exposure.

Does mcp-coda work with self-hosted Coda?

Coda is a hosted service, so there is no self-hosted deployment. Set CODA_BASE_URL only to target a proxy or a non-default API base.

Which clients work with mcp-coda?

mcp-coda works with Claude Desktop, Claude Code, Cursor, Windsurf, VS Code Copilot, and any MCP-compatible client over stdio or HTTP.

How many tools, resources, and prompts does it provide?

mcp-coda provides 54 tools, 12 resources, and 5 prompts. They cover docs, pages, tables, rows, formulas, controls, permissions, folders, publishing, automations, and analytics.

Related MCP Servers

• mcp-gitlab — GitLab integration (83 tools, 7 resources, 6 prompts)
• mcp-atlassian-extended — Jira + Confluence integration (22 tools, 15 resources, 5 prompts)
• mcp-argocd — Argo CD integration (37 tools, 7 resources, 7 prompts)

Development

git clone https://github.com/vish288/mcp-coda.git
cd mcp-coda
uv sync --all-extras

uv run pytest --cov
uv run ruff check .
uv run ruff format --check .

License

MIT