Ceramic MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Ceramic MCP or direct API to search public web content, retrieve relevant documents and links, summarize findings, and extract citations through natural language.

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Api Key

Ceramic Search is a lexical web search service that returns relevant public web content for keyword queries. Use it to surface timely web snippets and sources your agents can cite and act on.

1 Tools

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TOOLS

Supported Tools

Every Ceramic action and event your agent gets out of the box.

Search Web

Search the public web with concise lexical keywords and return up to 10 relevant pages with descriptions.

SETUP GUIDE

Connect Ceramic MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["ceramic"],
  mcp: true,
});
Create a session scoped to Ceramic and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Search public web for 'AI regulation' updates",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Ceramic request
SETUP GUIDE

Connect Ceramic API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["ceramic"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Ceramic
3

Run Ceramic tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Search public web for 'AI regulation' updates" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Ceramic tool calls through the session, and print the final answer

Why Use Composio?

AI Native Ceramic Integration

  • Supports both Ceramic MCP and direct API based integrations
  • Structured, LLM-friendly schemas so agents reliably run Ceramic search and retrieval tools
  • Rich coverage for searching, retrieving, summarizing, and citing public web content

Managed Auth

  • Secure API key handling with automatic storage and scoped access for Ceramic
  • Central place to manage, scope, and revoke Ceramic API keys without hard-coding them
  • Per-user and per-environment credentials instead of embedding keys in code

Agent Optimized Design

  • Tools are tuned using real error and success data to improve Ceramic call reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Ceramic
  • Scoped, least-privilege access to Ceramic resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

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FAQ

Frequently asked questions

Yes, Ceramic requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Ceramic connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Ceramic account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Ceramic actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Ceramic at any time.

When you connect a Ceramic account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Ceramic as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Ceramic. If Ceramic lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Ceramic at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Ceramic connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Ceramic rejects the old key. Create a new key in Ceramic and reconnect the account from the Composio dashboard or by asking your agent to reconnect Ceramic. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Ceramic use. Paid plans add higher limits and team features. Your Ceramic plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Ceramic accounts).

With Composio, you connect Ceramic once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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