Overlap
REMOTE · OVERLAP-AI.COM · SCANNED OCT 4
Records what you're working on so Overlap can introduce you to someone two weeks ahead of you.
Available components
Recent critical change
Authorization (14 Sept 2026). See the changelog before you install this server.
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (respond_to_match). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability72
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1261 tokens (~180/item across 7 items; 7 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management67
- Stability observed for 20 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the Overlap MCP server?
Overlap is a hosted endpoint at https://overlap-ai.com/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · overlap-ai.com
claude mcp add --transport http com-overlap-ai-overlap 'https://overlap-ai.com/api/mcp'
{
"mcpServers": {
"com-overlap-ai-overlap": {
"url": "https://overlap-ai.com/api/mcp"
}
}
} {
"servers": {
"com-overlap-ai-overlap": {
"type": "http",
"url": "https://overlap-ai.com/api/mcp"
}
}
} [mcp_servers.com-overlap-ai-overlap] url = "https://overlap-ai.com/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-overlap-ai-overlap": {
"type": "remote",
"url": "https://overlap-ai.com/api/mcp",
"enabled": true
}
}
} openclaw mcp add com-overlap-ai-overlap --url 'https://overlap-ai.com/api/mcp' --transport streamable-http
mcp_servers:
com-overlap-ai-overlap:
url: "https://overlap-ai.com/api/mcp" {
"McpServers": {
"com-overlap-ai-overlap": {
"Transport": "http",
"Url": "https://overlap-ai.com/api/mcp"
}
}
} assistant mcp add com-overlap-ai-overlap -t streamable-http -u 'https://overlap-ai.com/api/mcp'
{
"mcpServers": {
"com-overlap-ai-overlap": {
"type": "http",
"url": "https://overlap-ai.com/api/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Sept 26 0
- Tool “check_matches” now declares an output schema ▲ functional
- Tool “confirm_match_request” now declares an output schema ▲ functional
- Tool “create_match_request” now declares an output schema ▲ functional
- Tool “get_match_details” now declares an output schema ▲ functional
- Tool “preview_pool” now declares an output schema ▲ functional
- Tool “respond_to_match” now declares an output schema ▲ functional
- Tool “withdraw_match_request” now declares an output schema ▲ functional
- First check of Tool coverage: 100 functional
- 28 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 8 Oct 2026 · Probed https://overlap-ai.com/api/public/mcp · Declared URL https://overlap-ai.com/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=overlap-ai.com | CN=WE1,O=Google Trust Services,C=US | 25 Aug 2026 | 23 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | bfc48ddce955649113496ff2c5a126f7 |
| SANs: overlap-ai.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of overlap-ai.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| overlap-ai.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 3 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://overlap-ai.com/api/mcp | Redirected | 308 | https://overlap-ai.com/api/public/mcp |
| streamable-http · followed | https://overlap-ai.com/api/public/mcp | Verified | 200 | |
| http (plaintext) | http://overlap-ai.com/api/mcp | HTTPS enforced | 301 | https://overlap-ai.com/api/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_matches Check for matches ~55
Where the user stands. It returns every current match request, the number of other people in the pool, and any match. Use it to answer what the user submitted, and who they matched with. A match can appear days later.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| matches | array | yes | – |
| others_in_pool | integer | yes | Other people in the pool, each counted once. |
| requests | array | yes | – |
No examples provided.
confirm_match_request Confirm the draft match request ~94
Confirm one draft match request and add it to the matching pool. The other requests of the user do not change. It stays active until the user withdraws it. Call this ONLY after the user approves the exact stored text. Always pass its request_id.
| Name | Type | Req | Description |
|---|---|---|---|
| request_id | string | yes | The request_id from create_match_request or check_matches. Always name the exact request that the user approved, or asked you to withdraw. |
| Name | Type | Req | Description |
|---|---|---|---|
| match_limit_note | string | – | – |
| matches_found | integer | yes | – |
| note | string | yes | – |
| pipeline_completed | boolean | yes | False when matching ran out of time. It finishes in the background. |
| request_id | string | yes | – |
| status | string | yes | – |
No examples provided.
create_match_request Share what the user is going through as a match request ~409
Use this tool to save a private match request draft when the user wants to find a peer living through a similar personal situation. Write the match request from the current conversation. Write 2–5 sentences in the third person, and 200–1500 characters. Use the words of the user, not formal or clinical words. Cover three things: the situation, where the user is in it, and what help they want. Write it so that a stranger in the same place recognizes themselves. Any situation belongs here: an illness, a company, a move, a course, a hard year. Example of a good match request: "She was diagnosed with early-stage breast cancer four months ago and is halfway through chemotherapy. The medical side goes to plan. She finds the isolation harder than the treatment. The people around her keep telling her to stay positive. She hopes to hear from someone at a similar stage who understands the day-to-day of it." Never invent a detail. Never include a name, an email address, an employer or another personal identifier. With no replaces_draft_id, this tool saves a new independent private draft. With replaces_draft_id, it saves the complete revised text as a new draft and supersedes only the identified earlier draft. Existing open requests remain unchanged. The draft is not submitted to the matching pool and contacts nobody. Returns request_id, status and the exact stored request_text. Publishing uses the separate confirm_match_request tool and requires the user’s explicit approval of that exact stored text. Discarding uses withdraw_match_request with the draft’s request_id.
| Name | Type | Req | Description |
|---|---|---|---|
| replaces_draft_id | string | – | The request_id of a draft the user has already seen. Pass it only for a revision. Leave it out for a new independent request. |
| request_text | string | yes | The complete text of the request. Write 2–5 sentences in the third person, and at most 1500 characters. Say what the user hopes to get from a meeting. |
| Name | Type | Req | Description |
|---|---|---|---|
| instruction | string | yes | – |
| request_id | string | yes | – |
| request_text | string | yes | The stored text, to show the user word for word. |
| status | string | yes | – |
No examples provided.
get_match_details Get match details ~78
Get the full details of one match: what the other person wrote, why the two of them matched, something to open with, and where the match stands. It only reads. To accept, decline or block the match, call respond_to_match. Never promise an address.
| Name | Type | Req | Description |
|---|---|---|---|
| match_id | string | yes | The match_id from check_matches. |
| Name | Type | Req | Description |
|---|---|---|---|
| icebreaker | – | yes | Something to open with. |
| introduced_at | – | – | – |
| match_id | string | yes | – |
| state | string | yes | – |
| their_name | – | – | – |
| their_request_text | string | yes | – |
| they_accepted | boolean | yes | – |
| why_you_matched | – | yes | – |
| you_accepted | boolean | yes | – |
No examples provided.
preview_pool See how many people are going through something similar ~151
Count people in overlap's peer-connection pool who are going through a similar personal situation. Use when the user asks whether another person shares their situation before deciding whether to join. Do not use for intersections of lists, sets or schedules, dating, or finding licensed professionals. Returns a number and nothing else, capped at 10 — never anyone's words, name or details. It saves nothing: no match request is created and nobody is contacted. This is the one tool that works without an account.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | yes | What the person is going through, in their own words. Two to five sentences is enough. This is only embedded and counted against — it is never stored and never shown to anyone. |
| Name | Type | Req | Description |
|---|---|---|---|
| capped | boolean | yes | True when the count hit the cap of 10. |
| count | integer | yes | People in the pool with a similar situation, at most 10. |
No examples provided.
respond_to_match Answer a match ~212
Record the one answer the user gave about a match: accept, decline or block. Call it only after the user has said which of the three they want. When both people accept, overlap opens a private conversation in the app. It also sends each person a link by email. Never promise an address. A decline covers this one request, and a later request from that person can still match. A block is permanent and covers the person, so send block only when the user asks for exactly that.
| Name | Type | Req | Description |
|---|---|---|---|
| match_id | string | yes | The match_id from check_matches. |
| response | string | yes | The one answer the user gave. Use accept when the user wants this match. Use decline to pass on it: that covers this request only, and the next request from the same person can still match. Use block… |
| Name | Type | Req | Description |
|---|---|---|---|
| icebreaker | – | yes | Something to open with. |
| introduced_at | – | – | – |
| match_id | string | yes | – |
| state | string | yes | – |
| their_name | – | – | – |
| their_request_text | string | yes | – |
| they_accepted | boolean | yes | – |
| why_you_matched | – | yes | – |
| you_accepted | boolean | yes | – |
No examples provided.
withdraw_match_request Withdraw the match request ~105
Withdraw one match request, either a draft or an open one. Always pass its request_id. If it is unclear which one the user means, call check_matches first. The other requests of the user stay active. This voids a pending match from this request. It keeps a match that both people accepted.
| Name | Type | Req | Description |
|---|---|---|---|
| request_id | string | yes | The request_id from create_match_request or check_matches. Always name the exact request that the user approved, or asked you to withdraw. |
| Name | Type | Req | Description |
|---|---|---|---|
| request_id | string | yes | – |
| status | string | yes | – |
No examples provided.
What is the Overlap MCP server?
Overlap is an MCP server listed in the public MCP registry as com.overlap-ai/overlap. Records what you're working on so Overlap can introduce you to someone two weeks ahead of you. This page covers its hosted endpoint (https://overlap-ai.com/api/mcp).
Is the Overlap MCP server safe to use?
Overlap scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Overlap MCP server expose?
Overlap exposes 7 tools: preview_pool, create_match_request, confirm_match_request, check_matches, get_match_details, and 2 more. Their descriptions and schemas cost roughly 1,104 tokens of context every time the server is loaded.
Does the Overlap MCP server require authentication?
No. We connected to Overlap without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Overlap MCP server still maintained?
Overlap is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.