
Substack Gateway
An open-source Python gateway exposing Substack data and publishing actions through a REST API and MCP server for scripts, applications, AI tools, and agent wo…
What it does
The specific capability behind this listing, and where to get it.
Substack Gateway
An open-source Python gateway exposing Substack data and publishing actions through a REST API and MCP server for scripts, applications, AI tools, and agent wo…
Official Substack Gateway links
Source repository available · no commercial pricing observed.
No price does not imply the product is free. Any code-host platform pricing is excluded.
Is Substack Gateway good value?
Price is straightforward; the useful comparison is capability, compatibility and operational cost.
Source repository available · no commercial pricing observed.
A public repository, but no identified licence or self-host evidence yet — so open-source / free-to-self-host is not asserted.
Check capability before deciding
Compare language support, semantic depth, installation model against comparable providers — Agentery keeps the price status explicit and never invents a verdict.
View the full niche →Substack Gateway's local market
Nearest products by what they do — a different cohort from the buyer-tier benchmark above.
See the MCP response behind this page · get_provider_profile()
See the MCP response behind this pageget_provider_profile (get_agent_profile remains a callable alias)
{
"agent_id": "substack_gateway",
"name": "Substack Gateway",
"url": "https://github.com/jakub-k-slys/substack-gateway-oss",
"logo": "https://github.com/jakub-k-slys.png?size=200",
"niche": "content-operations",
"category": "sales-marketing-revops",
"short_summary": "An open-source Python gateway exposing Substack data and publishing actions through a REST API and MCP server for scripts, applications, AI tools, and agent wo…",
"task_performed": "unclear",
"inputs_accepted": [],
"outputs_produced": [],
"integrations_available": [],
"protocols_or_interfaces": [
"MCP"
],
"industry_fit": [],
"autonomy_level": "unclear",
"human_approval_needed": "unclear",
"pricing_model": "unclear",
"price": {
"observed": false,
"billing": "not_found",
"currency": null,
"lowest_monthly_usd": null,
"monthly_usd": null,
"headline": "No public price found",
"summary": "No public pricing was observed for this open-source Substack gateway repository.",
"confidence": "medium",
"source_url": "https://github.com/jakub-k-slys/substack-gateway-oss",
"checked_at": "2026-11-04T05:44:12.504Z",
"source_kind": "vendor",
"amount": null,
"display": null,
"plans": [],
"source": "render+llm"
},
"trust_or_rating_signal": [],
"evidence_quality": "unclear",
"entity_type": "mcp_server",
"regulated_data_suitability": "unclear",
"evidence_urls": [
"https://github.com/jakub-k-slys/substack-gateway-oss"
],
"last_checked": "2026-11-04",
"profile_checked": null,
"price_checked": "2026-11-04",
"how_to_connect": {
"website": "https://github.com/jakub-k-slys/substack-gateway-oss",
"docs": null,
"mcp": null,
"a2a": null,
"api": null,
"protocols": [
"MCP"
],
"install": null,
"repository": "https://github.com/jakub-k-slys/substack-gateway-oss",
"note": "Speaks MCP but publishes no endpoint we could verify — check the docs/website."
},
"deployment": {
"model": "both",
"both_offered": false,
"hosted_endpoint": null,
"install": null,
"note": "Offered both ways: a vendor-hosted endpoint AND a self-run install are documented.",
"evidence": {
"sources": [
"page_text:hosted",
"page_text:self_run_wording",
"page_text:licence"
],
"excerpt": "real values to the repository. MCP The MCP server is mounted at /mcp and served over streamable HTTP. It exposes 49 tools across the same domains as the REST API — see th",
"url": "https://github.com/jakub-k-slys/substack-gateway-oss",
"observed_day": "2026-11-03",
"age_days": 2,
"hosted_evidence": "wording: \"streamable HTTP\"",
"rule": "deploy-v1"
}
},
"licence": {
"name": "MIT",
"note": "Named licence as published; applies to the code, not to where it runs.",
"evidence": "page text: \"st-api substack vercel Resources Readme MIT license Code of conduct Code of cond\"",
"observed_day": "2026-11-03",
"age_days": 2
},
"evidence_checks": {
"price": {
"status": "unknown",
"note": "no observed price page text held for this listing"
},
"agent_card": {
"status": "unknown",
"note": "no Agent Card URL recorded for this listing"
},
"endpoint": {
"status": "unknown",
"note": "endpoint not yet checked"
}
},
"product_group": null,
"liveness": {
"probed": true,
"alive": true,
"endpoint_kind": "site",
"latency_ms": 260,
"uptime_7d": 1,
"checked_at": "2026-11-04T02:47:01.686Z",
"consecutive_failures": 0,
"status": "alive"
},
"price_extras": {
"free_tier": null,
"unit_cost": null
},
"reported_success": null,
"feedback": "If you actually use this provider, call report_outcome with the result. Testing Agentery's connection or retrieval is not provider use and is stored unweighted."
}