MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · AI / LLM tooling

Photo Mosaic & AI Collage Maker - Collager.ai

Photo mosaic maker and AI photo collage maker: turn your own photos into a mosaic or a collage.

Checks passed
16 / 22

0 failed · 6 not measured

Median response
343 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
6

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
501

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 345 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name collager-ai.

  • Pass
    Lists tools

    tools/list returned 6 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 343 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 345 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    20 of 22 parameters have a description (91%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-16T05:12:59.337762Z, within 180 days.

  • Pass
    Open-source licence

    GitHub reports an OSI licence.

Start using Photo Mosaic & AI Collage Maker - Collager.ai

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http photo-mosaic-ai-collage-maker-collager-ai https://collager.ai/mcp

Capabilities

Tools 6

get_shape_collage

Returns the status and the watermarked preview of a collage made with make_shape_collage, by its id (clg_...). Use when make_shape_collage answered status "processing", or to show the collage again.

Discovered
list_collage_shapes

Shows the menu of Collager.ai photo collages with a real example: the shapes make_shape_collage can draw (hearts of 27-164 photos, numbers, words, I love you, circle, star, flower, grid, your own mask) and how many photos fill each without repeats. Call it first when the user only mentions Collager.ai, says hello to it, or asks what it can make.

Discovered
list_mosaic_styles

Shows the looks of a Collager.ai photo mosaic (one large picture made of hundreds or thousands of small photos) with example images: soft classic, clean subject, stronger mosaic, uniform or mixed tile sizes. Use before start_photo_mosaic when the user wants to choose a style.

Discovered
make_shape_collage

Builds a photo collage in the shape of a heart, a number (age, anniversary, year), a word, a star, a flower and more from the user's photos, and returns a watermarked preview within seconds. Use when the user asks for a heart collage, a birthday/anniversary number collage, a 'photo collage in the shape of ...', or a collage from several photos. Pass the photos as public links in photo_urls, or as files the user attached (photos). 1 to 300 photos; if there are fewer photos than cells, photos repeat. The result id (clg_...) is a private handle valid for 30 days; photos and results are deleted after 30 days. The preview is watermarked; the full-resolution file is downloaded from the collager.ai page given in full_resolution_page. Building can take up to a minute - if status is still processing, call get_shape_collage with the id.

Discovered
plan_shape_collage

Shows the plan of the photo collage the user picked (shape, how many photos it holds, background) with a real example, and how to attach the photos. Use it when the user has chosen a shape but has not attached the photos yet. After the user attaches the photos or shares links, call make_shape_collage with the same shape and background.

Discovered
start_photo_mosaic

Gives the link where the user builds a photo mosaic: one main photo recreated from many small photos (best with 100-2000 photos - family archive, wedding, team, school year). The user uploads the photos on collager.ai, picks the style, and the site builds a watermarked preview in minutes. Call it only after the user has decided to make a photo mosaic; to show the options first, use list_mosaic_styles.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected345 ms6
Connected341 ms6