EchoRelay MCP MCP server

A managed runtime for custom API integrations that allows agents to manage lines, endpoints, keys, logs, and dead-letter queues via MCP tools.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by EchoRelay

MCP endpoint (Streamable HTTP)

https://mcp.echorelay.dev

Vendor documentation

What you can do with it

List and manage API lines and endpoints
View and modify relay configuration
Publish or rollback line drafts
Check project billing and credits

Tools advertised by the last live check:

get_project
list_lines
list_endpoints
get_endpoint
get_config
config_diff
list_config_revisions
get_line_draft
preview_line_draft
publish_line_draft
discard_line_draft
discard_draft_endpoint
schedule_line_publish
cancel_line_publish
rollback_config
get_billing
set_burst_opt_in
set_rpm_ceiling
set_outbound_allowlist
create_line
delete_line
activate_line
deactivate_line
duplicate_line
set_docs_shared
create_endpoint
generate_line_draft
update_endpoint
delete_endpoint
default_endpoint_template
dry_run_endpoint
list_members
invite_member
remove_member
set_member_role
resend_invite
list_api_keys
create_api_key
rotate_api_key
reveal_rotation_successor
revoke_api_key
get_key_policy
set_key_policy
list_credentials
create_credential
update_credential
delete_credential
list_requests
get_request
get_receipts
get_metrics
list_dlq
get_dlq_entry
retry_dlq_entry
discard_dlq_entry
list_subscription_plans
list_credit_packs
list_addons
get_subscription
preview_plan_change
start_subscription
change_plan
cancel_subscription
set_overage_billing
start_topup
subscribe_addon
unsubscribe_addon
resume_addon
downgrade_addon
list_active_addons
list_audit_events
list_projects
create_project
rename_project
archive_project
protect_project
unarchive_project
create_project_token
list_project_tokens
revoke_project_token

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http echorelay-mcp https://mcp.echorelay.dev

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add echorelay-mcp --url https://mcp.echorelay.dev

Cursor

Merge this server into .cursor/mcp.json in your project, then enable echorelay-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "echorelay-mcp": {
      "url": "https://mcp.echorelay.dev"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "echorelay-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.echorelay.dev",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start echorelay-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "echorelay-mcp": {
      "type": "http",
      "url": "https://mcp.echorelay.dev"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http echorelay-mcp https://mcp.echorelay.dev

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "echorelay-mcp": {
      "url": "https://mcp.echorelay.dev"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "echorelay-mcp": {
      "serverUrl": "https://mcp.echorelay.dev"
    }
  }
}

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