Visual search for memes, infographics and charts — by meaning, OCR text, or image similarity.
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Get a category and its featured images. Categories group related tags (e.g. "charts", "memes", "lightning-network").
Category slug (e.g. "charts", "memes")
Get a category and its featured images. Categories group related tags (e.g. "charts", "memes", "lightning-network").
| Argument | Type | Description |
|---|---|---|
| category* | string | Category slug (e.g. "charts", "memes") |
{
"type": "object",
"required": [
"category"
],
"properties": {
"category": {
"type": "string",
"description": "Category slug (e.g. \"charts\", \"memes\")"
}
}
}Browse images for a specific tag. Returns the tag profile (description, stats) and optionally a paginated list of images tagged with it. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| tag* | string | Tag slug (e.g. "bitcoin", "meme", "lightning") |
| limit | number | Images per page (1-50, default 10). When provided, images are included in the response. |
| offset | number | Pagination offset (default 0) |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"tag"
],
"properties": {
"tag": {
"type": "string",
"description": "Tag slug (e.g. \"bitcoin\", \"meme\", \"lightning\")"
},
"limit": {
"type": "number",
"description": "Images per page (1-50, default 10). When provided, images are included in the response."
},
"offset": {
"type": "number",
"description": "Pagination offset (default 0)"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Browse and filter the image gallery without a search query. Useful for discovering content by tag, trending, or recent uploads. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| tag | string | Filter by tag slug (e.g. "bitcoin", "meme") |
| sort | string | Sort order (default: newest) |
| limit | number | Results per page (1-50, default 10) |
| offset | number | Pagination offset (default 0) |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"properties": {
"tag": {
"type": "string",
"description": "Filter by tag slug (e.g. \"bitcoin\", \"meme\")"
},
"sort": {
"enum": [
"newest",
"popular",
"oldest",
"trending"
],
"type": "string",
"description": "Sort order (default: newest)"
},
"limit": {
"type": "number",
"description": "Results per page (1-50, default 10)"
},
"offset": {
"type": "number",
"description": "Pagination offset (default 0)"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Generate canonical attribution blocks for one or more MemeStack images. Returns markdown, HTML, and plain-text citation strings ready to paste into your output, plus a combined block for citing multiple images at once.
| Argument | Type | Description |
|---|---|---|
| image_ids* | array | Up to 50 image UUIDs |
{
"type": "object",
"required": [
"image_ids"
],
"properties": {
"image_ids": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 50,
"minItems": 1,
"description": "Up to 50 image UUIDs"
}
}
}Find memes that capture a vibe, idea, or concept, ready to embed with citation blocks. Use this when writing posts, articles, or social content and you need a meme to illustrate a point. Returns only images tagged as memes (the gallery's Memes filter), so it may come back empty when no meme fits. To search every kind of image, use search_images. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| vibe* | string | The core idea in one to three words, e.g. "procrastination", "burnout" or "imposter syndrome". Every extra word narrows the match: a long descriptive phrase finds only weaker "closest" results, so leave out synonyms and words like "funny" or "relatable". |
| limit | number | How many memes to return (1-20, default 5) |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"vibe"
],
"properties": {
"vibe": {
"type": "string",
"description": "The core idea in one to three words, e.g. \"procrastination\", \"burnout\" or \"imposter syndrome\". Every extra word narrows the match: a long descriptive phrase finds only weaker \"closest\" results, so leave out synonyms and words like \"funny\" or \"relatable\"."
},
"limit": {
"type": "number",
"description": "How many memes to return (1-20, default 5)"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Find semantically related images using AI embedding similarity. Returns images with similar meaning/topic. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| id* | string | Source image UUID |
| limit | number | Max results (1-20, default 10) |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "Source image UUID"
},
"limit": {
"type": "number",
"description": "Max results (1-20, default 10)"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Find visually similar images using perceptual hash matching. Returns images that look alike. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| id* | string | Source image UUID |
| limit | number | Max results (1-20, default 10) |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "Source image UUID"
},
"limit": {
"type": "number",
"description": "Max results (1-20, default 10)"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Generate a new image from a text prompt using AI (Grok Imagine). Paid tool - billed per call via the agent payment rails (x402/L402); not covered by any free quota. Generation runs asynchronously on the server and this call polls until it completes, up to ~90 seconds. If you get a "still running" error, call the tool again with the SAME payment proof to resume polling - you will never be charged twice for one payment. Price: $0.08 standard or $0.20 quality, paid in sats over Lightning at the current BTC/USD rate or in USDC on Base. Note for x402 clients: "quality" mode exceeds the agents-SDK default per-call cap of $0.10 - raise maxPaymentValue in withX402Client to use it.
| Argument | Type | Description |
|---|---|---|
| mode | string | Generation quality tier - "standard" (default, cheaper) or "quality" (higher fidelity, costs more). |
| prompt* | string | Text description of the image to generate (max 2000 characters). |
| aspect_ratio | string | Output image aspect ratio (default "1:1"). |
{
"type": "object",
"required": [
"prompt"
],
"properties": {
"mode": {
"enum": [
"standard",
"quality"
],
"type": "string",
"description": "Generation quality tier - \"standard\" (default, cheaper) or \"quality\" (higher fidelity, costs more)."
},
"prompt": {
"type": "string",
"maxLength": 2000,
"description": "Text description of the image to generate (max 2000 characters)."
},
"aspect_ratio": {
"enum": [
"1:1",
"3:4",
"16:9"
],
"type": "string",
"description": "Output image aspect ratio (default \"1:1\")."
}
}
}Get full metadata for a specific image by ID, including caption, alt text, tags, OCR text, zap stats, and URLs. For a chart that is part of a series, chart.series lists every edition (other years) by id.
| Argument | Type | Description |
|---|---|---|
| id* | string | Image UUID |
{
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "Image UUID"
}
}
}Get top-ranked images by zaps received, or top zappers by amount zapped, over a time period.
| Argument | Type | Description |
|---|---|---|
| type* | string | Leaderboard type |
| period | string | Time period (default: week) |
{
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"enum": [
"images",
"zappers"
],
"type": "string",
"description": "Leaderboard type"
},
"period": {
"enum": [
"day",
"week",
"month",
"all"
],
"type": "string",
"description": "Time period (default: week)"
}
}
}Get every variant of a meme tracked on MemeStack, given the ID of any one of them. Returns the dominant (most popular) version plus each variant, with citation blocks for each. Use this to research how a meme has evolved or to find variants of a known image.
| Argument | Type | Description |
|---|---|---|
| image_id* | string | Image UUID |
{
"type": "object",
"required": [
"image_id"
],
"properties": {
"image_id": {
"type": "string",
"description": "Image UUID"
}
}
}Get the profile for a tag (description, image count, total zaps, related tags) without fetching any images. Use browse_by_tag to also retrieve images.
| Argument | Type | Description |
|---|---|---|
| tag* | string | Tag slug (e.g. "bitcoin", "meme") |
{
"type": "object",
"required": [
"tag"
],
"properties": {
"tag": {
"type": "string",
"description": "Tag slug (e.g. \"bitcoin\", \"meme\")"
}
}
}Get a user's public profile including display name, stats, and avatar info.
| Argument | Type | Description |
|---|---|---|
| identifier* | string | User public key (hex) or UUID |
{
"type": "object",
"required": [
"identifier"
],
"properties": {
"identifier": {
"type": "string",
"description": "User public key (hex) or UUID"
}
}
}List all available image categories. Use this to discover what categories exist before calling browse_by_category.
No arguments.
{
"type": "object",
"properties": {}
}List the most-used tags on MemeStack by all-time usage count. (Time-period filtering is not yet supported - tag usage is currently counted across the full lifetime of each tag.)
| Argument | Type | Description |
|---|---|---|
| limit | number | How many tags to return (1-100, default 20) |
{
"type": "object",
"properties": {
"limit": {
"type": "number",
"description": "How many tags to return (1-100, default 20)"
}
}
}Find MemeStack images that look visually similar to a given image. Accepts an HTTPS image URL or a `data:image/...;base64,...` URL for bytes pasted into agent context. Returns visually-similar matches via perceptual-hash (dHash) hamming distance, with citation blocks. Heavily rate-limited (10/min/IP) since each call hashes the input. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| url* | string | HTTPS image URL, or data:image/(jpeg|png|webp);base64,... URL |
| limit | number | Max results (1-20, default 10) |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "HTTPS image URL, or data:image/(jpeg|png|webp);base64,... URL"
},
"limit": {
"type": "number",
"description": "Max results (1-20, default 10)"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Search charts, maps and infographics that carry stored metadata of two kinds. Charts from Our World in Data and three statistical publishers (provenance 'authoritative') carry the publishing dataset and its citation, the unit, the regions plotted, the period the chart actually displays (never the dataset's wider history), and whether the source has published newer data since the image was captured. Community-uploaded charts (provenance 'extracted') carry a title, source line, unit and period that were read from the image itself and not checked against the original data. browse_by_tag, browse_by_category, get_leaderboard and get_meme_variants return images WITHOUT this metadata; the other search and image tools include it whenever a row exists. This tool covers only images that HAVE stored metadata, so use search_images for the widest chart coverage. Set publisher_only to keep only the publishers' own charts (licence-clean, citable). Every image carries rights (source publisher/creator/community, licence, attribution line, commercial_use yes/no/unknown - unknown is never a guess), and match_quality says whether the search found any strong match (strong / closest_only / none). Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| limit | number | Results per page (1-50, default 10) |
| query* | string | What the chart should show, in plain words - e.g. "global cereal yields" or "life expectancy by country". |
| offset | number | Pagination offset (default 0) |
| region | string | Restrict to charts that plot this entity exactly as the chart names it, e.g. "World", "Germany". |
Search the MemeStack image gallery. Runs semantic AI and keyword matching in parallel and merges results. Returns images with captions, tags, zap stats, and URLs. Every image carries rights (source publisher/creator/community, licence, attribution line, commercial_use yes/no/unknown - unknown is never a guess), and match_quality says whether the search found any strong match (strong / closest_only / none). Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| q | string | Alias for `query`. Provided so REST-API muscle memory (?q=...) works on the MCP tool too. If both are set, `query` wins. |
| tag | string | Filter results by a single tag slug (backward compat) |
| sort | string | Sort order (default: relevance) |
| tags | string | Filter results by multiple tag slugs (comma-separated, AND logic - e.g. "bitcoin,meme") |
| limit | number | Results per page (1-50, default 10) |
| query* | string | Search query - combines semantic AI and keyword matching automatically. Use the key words only (e.g. "bitcoin halving infographic"): a long descriptive phrase matches fewer images strongly. Alias: `q` (matches the REST API param name). |
Search for images by the text written or printed in them (OCR). Different from regular search - only matches the text_in_image field, not captions or tags. Use this to find screenshots of specific quotes, signs, watermarks, or memes with specific embedded text. Results exclude images classified controversial unless include_controversial is true.
| Argument | Type | Description |
|---|---|---|
| limit | number | Results per page (1-50, default 10) |
| query* | string | Text to search for in image OCR |
| offset | number | Pagination offset |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "number",
"description": "Results per page (1-50, default 10)"
},
"query": {
"type": "string",
"description": "Text to search for in image OCR"
},
"offset": {
"type": "number",
"description": "Pagination offset"
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}Submit an image to the MemeStack review queue. Paid tool - $0.10 per submission, paid in sats over Lightning at the current BTC/USD rate or in USDC on Base via the agent payment rails (x402/L402); no account or API key. IMPORTANT: there is NO refund if moderation rejects the submission (duplicate, nsfw/spam, low quality) - the fee is the anti-spam mechanism. Accepted images await human review before publication. Accepts an HTTPS image URL or a data:image/...;base64 URL (JPEG/PNG/WebP, max 8MB). Optional caption/tags/attribution are hints shown to the AI tagger and moderators - never published verbatim. If the call fails or times out, retry with the SAME payment proof to resume - one payment delivers at most one submission and is never charged twice (up to 10 delivery attempts per payment; a corrected image_url is allowed while no submission has been created yet).
| Argument | Type | Description |
|---|---|---|
| tags | array | Optional tag hints (max 10). |
| caption | string | Optional caption hint for the AI tagger (admin-visible, never published verbatim). |
| image_url* | string | HTTPS image URL, or data:image/(jpeg|png|webp);base64,... URL. Max 8MB. |
| attribution | string | Optional credit line for the original creator/source (shown to moderators, not published). |
{
"type": "object",
"required": [
"image_url"
],
"properties": {
"tags": {
"type": "array",
"items": {
"type": "string",
"maxLength": 40
},
"maxItems": 10,
"description": "Optional tag hints (max 10)."
},
"caption": {
"type": "string",
"maxLength": 200,
"description": "Optional caption hint for the AI tagger (admin-visible, never published verbatim)."
},
"image_url": {
"type": "string",
"description": "HTTPS image URL, or data:image/(jpeg|png|webp);base64,... URL. Max 8MB."
},
"attribution": {
"type": "string",
"maxLength": 200,
"description": "Optional credit line for the original creator/source (shown to moderators, not published)."
}
}
}Suggest tag slugs matching a prefix. Use this to verify a tag exists before filtering by it, or to discover related tags. Prefix must be >= 2 characters.
| Argument | Type | Description |
|---|---|---|
| limit | number | Max suggestions (1-50, default 10) |
| prefix* | string | Tag prefix to autocomplete (>= 2 characters), e.g. "bit" -> "bitcoin". |
{
"type": "object",
"required": [
"prefix"
],
"properties": {
"limit": {
"type": "number",
"description": "Max suggestions (1-50, default 10)"
},
"prefix": {
"type": "string",
"minLength": 2,
"description": "Tag prefix to autocomplete (>= 2 characters), e.g. \"bit\" -> \"bitcoin\"."
}
}
}| data_to | number | Latest year of interest. See data_from. |
| data_from | number | Earliest year of interest. Matches charts whose DISPLAYED period overlaps [data_from, data_to]. Charts with no provable displayed period are excluded, and the underlying dataset's wider history is never used for this test. |
| chart_source | string | Restrict to one upstream source key: "owid" (Our World in Data), "usda_ers" (USDA Economic Research Service), "eurostat" or "eea" (European Environment Agency), or "extracted" (community charts whose details were read from the image). |
| publisher_only | boolean | Only charts imported from a licence-clean publisher: Our World in Data (CC BY 4.0), the USDA Economic Research Service (US public domain), Eurostat or the European Environment Agency (both CC BY 4.0). Community uploads, including copies of publisher charts, are left out. Default false. |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "number",
"description": "Results per page (1-50, default 10)"
},
"query": {
"type": "string",
"description": "What the chart should show, in plain words - e.g. \"global cereal yields\" or \"life expectancy by country\"."
},
"offset": {
"type": "number",
"description": "Pagination offset (default 0)"
},
"region": {
"type": "string",
"description": "Restrict to charts that plot this entity exactly as the chart names it, e.g. \"World\", \"Germany\"."
},
"data_to": {
"type": "number",
"description": "Latest year of interest. See data_from."
},
"data_from": {
"type": "number",
"description": "Earliest year of interest. Matches charts whose DISPLAYED period overlaps [data_from, data_to]. Charts with no provable displayed period are excluded, and the underlying dataset's wider history is never used for this test."
},
"chart_source": {
"type": "string",
"description": "Restrict to one upstream source key: \"owid\" (Our World in Data), \"usda_ers\" (USDA Economic Research Service), \"eurostat\" or \"eea\" (European Environment Agency), or \"extracted\" (community charts whose details were read from the image)."
},
"publisher_only": {
"type": "boolean",
"description": "Only charts imported from a licence-clean publisher: Our World in Data (CC BY 4.0), the USDA Economic Research Service (US public domain), Eurostat or the European Environment Agency (both CC BY 4.0). Community uploads, including copies of publisher charts, are left out. Default false."
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}| offset |
| number |
| Pagination offset (default 0) |
| publisher_only | boolean | Only charts imported from a licence-clean publisher: Our World in Data (CC BY 4.0), the USDA Economic Research Service (US public domain), Eurostat or the European Environment Agency (both CC BY 4.0). Community uploads, including copies of publisher charts, are left out. Default false. |
| include_controversial | boolean | Include images classified controversial (excluded by default). |
{
"type": "object",
"required": [
"query"
],
"properties": {
"q": {
"type": "string",
"description": "Alias for `query`. Provided so REST-API muscle memory (?q=...) works on the MCP tool too. If both are set, `query` wins."
},
"tag": {
"type": "string",
"description": "Filter results by a single tag slug (backward compat)"
},
"sort": {
"enum": [
"newest",
"popular",
"oldest"
],
"type": "string",
"description": "Sort order (default: relevance)"
},
"tags": {
"type": "string",
"description": "Filter results by multiple tag slugs (comma-separated, AND logic - e.g. \"bitcoin,meme\")"
},
"limit": {
"type": "number",
"description": "Results per page (1-50, default 10)"
},
"query": {
"type": "string",
"description": "Search query - combines semantic AI and keyword matching automatically. Use the key words only (e.g. \"bitcoin halving infographic\"): a long descriptive phrase matches fewer images strongly. Alias: `q` (matches the REST API param name)."
},
"offset": {
"type": "number",
"description": "Pagination offset (default 0)"
},
"publisher_only": {
"type": "boolean",
"description": "Only charts imported from a licence-clean publisher: Our World in Data (CC BY 4.0), the USDA Economic Research Service (US public domain), Eurostat or the European Environment Agency (both CC BY 4.0). Community uploads, including copies of publisher charts, are left out. Default false."
},
"include_controversial": {
"type": "boolean",
"description": "Include images classified controversial (excluded by default)."
}
}
}