Sumble MCP server
Research companies by known identifiers or explicit search criteria, then check their hiring activity. Access is gated: request enablement for your organization before connecting.
Agent workflows for Sumble.
Resolve organizations
Use when enriching known companies by Sumble ID. Returns headcount and industry; up to 3 credits per match, 20 IDs maximum. A timed-out call may still be charged.
Search organizations
Use when discovering companies by a Sumble advanced query, such as a technology or industry filter. Up to 3 credits per returned company. Page with offset; a timed-out call may still be charged.
Find job posts
Use when checking hiring activity at known organizations. Returns job titles, dates and technology slugs without related people. Up to 3 credits per job. A timed-out call may still be charged.
7 Sumble actions, graded by risk.
These actions come from the Arc0 registry. Your identity, provider permissions and Arc0 policies determine which actions can run.
read
7Look things up, subject to your permissions.
- sumble.resolve_organizationsResolve organizations
Use when enriching known companies by Sumble ID. Returns headcount and industry; up to 3 credits per match, 20 IDs maximum. A timed-out call may still be charged.
- sumble.search_organizationsSearch organizations
Use when discovering companies by a Sumble advanced query, such as a technology or industry filter. Up to 3 credits per returned company. Page with offset; a timed-out call may still be charged.
- sumble.find_jobsFind job posts
Use when checking hiring activity at known organizations. Returns job titles, dates and technology slugs without related people. Up to 3 credits per job. A timed-out call may still be charged.
- sumble.find_teamsFind teams
Use when mapping teams and their hiring or technology signals at known organizations. Returns no related people. Up to 3 credits per team; a timed-out call may still be charged.
- sumble.find_technologiesFind technologies
Use when resolving a technology name to Sumble slugs before filtering companies or jobs. Returns catalog matches and the full match count. Costs 1 credit when results exist. A timed-out call may still be charged.
- sumble.start_person_lookupStart person lookup
Use when checking one known person by exact Sumble ID. Returns a request ID to poll, not completed enrichment. Up to 2 credits on the first successful poll. A timed-out kickoff may orphan a job with no returned ID; it costs nothing unless polled.
- sumble.poll_person_lookupPoll person lookup
Use when polling a one-person job created here (up to 2 credits on first success). Do not poll IDs started elsewhere: email/phone reveals can charge 90+ credits even though discarded here. Pending means retry the same ID later; repeat success is free. A timed-out poll may still be charged.
write
0Create and change things. Allow, or ask the user first.
- No write actions.
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Control access to Sumble.
After early access is enabled, connect the intended Sumble account, authorize your AI client and set policies for its tools.
Provider permissions and Arc0 policy both apply. Allow reads, require approval for selected writes, or deny destructive actions. The audit log records execution decisions.
Configure policies and approvalsExample policy choices
- Read actions: allow where authorized
Arc0 MCP endpoint: https://api.arc0.ai/mcp
How Sumble connects.
Connect Sumble using API key. OAuth grants the provider scopes shown during consent; API keys and other credentials retain the permissions configured at the provider. Arc0 stores credentials in its encrypted vault and does not pass them to the model. Disconnect to remove access through Arc0; revoke a key at the provider to invalidate it there. Token refresh and provider-side revocation depend on the authentication lane and provider.
The connection serves authorized calls through Arc0 MCP and REST. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Sumble with your AI client.
Request access to Sumble first. An Arc0 administrator must enable it for your organization before these actions appear. Then authorize your AI client separately. It only receives tools and accounts allowed for that identity.
Sumble with Claude
Claude Desktop + Claude Code
- In Claude Desktop, add Arc0 through the remote MCP settings and use OAuth. Follow the generic remote-client steps if your account’s interface differs.
- For Claude Code, run the command below. Open /mcp, select Arc0, and authenticate in your browser. Select your workspace and review access.
- Check the connection with claude mcp get arc0.
claude mcp add --transport http --scope user arc0 https://api.arc0.ai/mcpSumble with ChatGPT
ChatGPT on the web
- Open Plugins in ChatGPT, select the plus button, then Add custom MCP server.
- Name it Arc0, enter the server URL below, and choose OAuth. Use dynamic client registration if asked; no Arc0 API key is needed.
- Review the notice and select Create as a plugin. Complete Arc0 sign-in, workspace selection and consent, then install and select the plugin in your conversation. Labels and access vary by account; managed workspaces may require administrator approval.
https://api.arc0.ai/mcpSumble with OpenAI Codex
Codex app + CLI
- Run the registration command below. The app and CLI share ~/.codex/config.toml.
- Complete browser OAuth, choose your Arc0 workspace, and review access. If authentication does not start, run codex mcp login arc0.
- Check codex mcp list, then open a new Codex chat. Inspect an existing arc0 entry before changing it.
codex mcp add arc0 --url https://api.arc0.ai/mcpSumble with Cursor
Remote MCP setup
- Add Arc0 in your client’s remote MCP settings using the server URL below.
- Choose OAuth, sign in to Arc0, select the intended workspace and review access.
- Confirm the server is connected and start with an allowed read. These are generic remote-MCP steps; consult your client’s settings for its current interface.
https://api.arc0.ai/mcpSumble with VS Code
Remote MCP setup
- Add a remote HTTP MCP server named Arc0 using the URL below.
- Use OAuth and finish Arc0 sign-in, workspace selection and consent.
- Confirm discovery succeeds before requesting a read. These are generic remote-MCP steps; client UI and availability may differ.
https://api.arc0.ai/mcpSumble with Any MCP client
Streamable HTTP
- Use a client that supports remote MCP over Streamable HTTP. Add the server URL below and choose OAuth.
- For a client without OAuth, use a self-bound API key with execute permission in the X-API-Key header. Store it in secret storage or an environment variable, outside source control. Never send both an API key and an OAuth bearer token.
- Use the MCP clients guide for the SDK transport example and Embedded identity for business-managed end users.
https://api.arc0.ai/mcpAfter setup, ask your agent to find an allowed read action, load its schema, and execute it on the intended account. Check Activity for the receipt. A connected MCP client alone does not confirm a successful provider call.
Sumble and Arc0, answered.
Does Sumble work with Claude Desktop and Claude Code?
Yes, after early access is enabled for your organization and you connect the intended account. Use Arc0’s remote MCP endpoint with OAuth. Claude Code has a documented registration command; Desktop uses the generic remote-client setup.
Can I use Sumble with OpenAI Codex, ChatGPT and Cursor?
Yes, after early access is enabled for your organization and you connect the intended account. Codex and ChatGPT have setup instructions in Arc0’s MCP clients guide. Cursor uses the generic remote-MCP steps. Tool access remains scoped to the authorized identity.
Is this the official Sumble MCP server?
This is Arc0’s integration page, not a claim of an official Sumble server. Arc0 adds a shared connection, policy and audit experience across apps. Consult Sumble for its own current MCP offerings.
Which Sumble actions are supported?
7 registry-defined actions: 7 read, 0 write and 0 destructive. Provider permissions, access enablement and Arc0 policy determine what can execute.
Which permissions does Sumble need?
Connect Sumble using API key. OAuth grants the provider scopes shown during consent; API keys and other credentials retain the permissions configured at the provider. Arc0 stores credentials in its encrypted vault and does not pass them to the model. Disconnect to remove access through Arc0; revoke a key at the provider to invalidate it there. Token refresh and provider-side revocation depend on the authentication lane and provider.
Can I restrict writes in Sumble?
You can deny write and destructive actions or require approval. Provider scopes and Arc0 action policies are separate controls; a policy does not grant additional provider permissions.
What does Sumble through Arc0 cost?
See Arc0 pricing for current connectivity plans. The provider may require its own subscription or charge per request. Arc0 plan allowances do not make third-party data or paid actions free.
Request Sumble access.
Sumble MCP server: 7 actions including resolve organizations, search organizations, find job posts. Request early access through Arc0.
Free to build · MCP + REST · Audit log on every plan
Sumble and its logo are trademarks of their respective owners. Arc0 is not affiliated with or endorsed by Sumble.