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ActAs

dev.actas/accountsv0.4.1Email

Persistent identity, email, saved accounts and scoped credentials for AI agents.

The current version, v0.4.1, was published to the official MCP registry on 2026-10-19. It is distributed as actas on npm and as a hosted remote over streamable-http, filed under Email by this index, and declares one environment variable. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using ActAs 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. 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? Test a description on the public screen → It is a separate check from the verdict above, so the two can differ.

That verdict was true at screening time (snapshot 2026-10-19).

Contracts can change after screening, with no version bump. The gate pins ActAs’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
ACTAS_CONNECTION_FILE
required

Absolute path to your private scoped ActAs connection JSON file. Keep the file private.

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
20
installability
25
documentation
15
stability
5
Alternatives in Email
BlitzAPI
ai.blitz-api/b2b-data

Search and enrich B2B companies and people: verified work emails, US phone numbers, job postings.

Oneprofile
ai.getoneprofile/oneprofile

Find prospects, research them, and run email and LinkedIn outreach in your Oneprofile workspace.

AgentDiet B2B Company, Tech Stack & Contact Lead Enrichment
dev.agentdiet/company-enrich

Extracts verified emails, social links, 40+ tech stack signals, pricing tiers, and company summar.