Tools that sit on the receiving end of demand - website chat that qualifies and books a visitor before a human ever joins, in-app signal tools that turn free-trial usage into a sales-ready account, and the newer wave of AI-SDR-for-inbound entrants trying to do both. The defining tension: this category has an unusually high mortality rate. Of the ten seed tools researched for this file, three (Pocus, Correlated, Toplyne) are confirmed dead or absorbed and two more (Drift, Ultimate.ai) are folded into an acquirer's platform rather than sold standalone - suggesting "PLG signal tool" and "chat widget" were never durable categories on their own, just features that bigger platforms eventually swallowed. 5 of 15 entries in this category are reachable by an agent: 5 through a server the vendor maintains and 0 through one somebody else built. The category is tagged most often with Answer an inbound chat or call. See the full category page.
| Tool | MCP status | Server URL | Auth | Gate |
|---|---|---|---|---|
| Chili Piper chilipiper.com | Official MCP | https://www.chilipiper.com/products/mcp +3 more | OAuth or an API key Two supported paths, both vendor-documented. Option A (vendor-recommended): a Chili Piper... | Paid, self-serve |
| Intercom (Fin) intercom.com | Official MCP | https://mcp.intercom.com/mcp +2 more | OAuth or an API key OAuth (browser-based, recommended) or a Bearer token using an Intercom API token;... | Paid, self-serve |
| Ada ada.cx | Official MCP | https://docs.ada.cx/_mcp/server | Auth not recorded none documented - connects over HTTP with no credential requirement described in the... | Gate unknown |
| Endgame endgame.io | Official MCP | https://docs.endgame.io/features/mcp-server +1 more | OAuth or an API key OAuth (browser-based) for individual users via Claude/ChatGPT/Claude Code/Codex... | Gate unknown |
| Pylon usepylon.com | Official MCP | https://mcp.usepylon.com +1 more | OAuth OAuth 2.0 over stateless streamable HTTP; access is permission-scoped so a connected AI... | Gate unknown |
No server found, or the check could not settle it. Same category, not reachable by an agent today.
| Tool | MCP status | Gate | Checked |
|---|---|---|---|
| Landbot landbot.io | No MCP found | Free to start | 2026-08-24 |
| Tidio tidio.com | No MCP found | Free to start | 2026-08-24 |
| Chatbase chatbase.co | No MCP found | Paid, self-serve | 2026-08-24 |
| Forethought (now "Forethought AI Agents by Zendesk") forethought.ai | No MCP found | Enterprise only | 2026-08-24 |
| Qualified qualified.com | No MCP found | Enterprise only | 2026-08-25 |
| Drift drift.com | No MCP found | Gate unknown | 2026-08-24 |
| Correlated correlated.ai | No MCP found | Gate not applicable | 2026-08-24 |
| Pocus pocus.com | No MCP found | Gate not applicable | 2026-08-24 |
| Toplyne toplyne.io | No MCP found | Gate not applicable | 2026-08-24 |
| Ultimate.ai (Ultimate) getultimate.ai | No MCP found | Gate not applicable | 2026-08-24 |
The jobs most often tagged on the 10 tagged entries in this category.
Counted 2026-08-25 from directory.json and reconciled against tools_recount.py. Nothing on this page is hand maintained: it is a filter over the same 293 entries the rest of the site is built from. Ordered by the published rule: official MCP first, then community, then unknown, then n/a, then none-found; within each band gate order is free, paid, enterprise-leaning, enterprise-only, unknown; then alphabetical by name. Computed, never curated, never purchasable.