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ai.withone/mcpv1.2.1Search

Search, document and execute authenticated API calls across 500+ apps via one MCP server

In-path gate · all MCP tools

Using One in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire
Auditable install path →Watch it hold a drift →
Trust verdict · v1 advisory · method
NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-12).

Contracts can change after screening, with no version bump. The gate pins One’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Related: how to trust an MCP server · screen before install · silent contract drift

Environment variables
ONE_SECRET
requiredsecret

One API key from https://app.withone.ai/settings/api-keys

ONE_PERMISSIONS

Restrict actions by HTTP method: read (GET), write (GET/POST/PUT/PATCH) or admin (all)

ONE_CONNECTION_KEYS

Comma-separated connection keys the agent may see, or * for all

ONE_ACTION_IDS

Comma-separated action IDs the agent may see and run, or * for all

ONE_KNOWLEDGE_AGENT

Set true to drop execute_one_action and run in knowledge-only mode

ONE_IDENTITY

Scope connections to a single user, team, organization or project identifier

ONE_IDENTITY_TYPE

Type of ONE_IDENTITY: user, team, organization or project

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
25
installability
25
documentation
15
stability
10
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