Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Added "clinical_trials_search", "macro_indicators", "manifest_scan" and 2 more (40 tools before, 45 now)
Search ClinicalTrials.gov for health-research agents: keyword, condition or intervention in; trials out with NCT ID, title, status, phases, study type, enrollment, conditions, interventions, lead sponsor, start and completion dates, results flag, site count and link. Filter by status (e.g. RECRUITING), phase and location. Registry data only, not medical advice. Price $0.005 USDC per call via x402. Example output: {"total_matches":822,"returned":1,"studies":[{"nct_id":"NCT06467604","title":"CRAVE Study: Comparing Craving Responses and Diet Quality of GLP1 Receptor Agonist Users","status":"ACTI…
Macro indicators by country and year from the World Bank: GDP, GDP growth, GDP per capita, inflation, unemployment, population, debt to GDP, real interest rate, exports, imports, current account, FDI, or any World Bank indicator code. Up to 10 countries per call (ISO2 or ISO3, joined with ;), newest year first. Pairs with fx_rates. Price $0.003 USDC per call via x402. Example output: {"indicator":{"code":"NY.GDP.MKTP.CD","name":"GDP (current US$)"},"series":[{"country":"United States","iso3":"USA","values":[{"year":2025,"value":30769700000000},{"year":2024,"value":29298013000000}]}],"last_upd…
Batch vulnerability scan of a whole package.json (npm) or requirements.txt (PyPI): JSON body {manifest}. Checks up to 50 dependencies against OSV.dev known advisories and returns, per package, the version checked, vulnerability count by severity, advisory IDs and the minimum fixed version, with vulnerable packages listed first. Cheaper batch form of package_advisories. Price $0.012 USDC per call via x402. Example output: {"ecosystem":"npm","manifest_type":"package.json","summary":{"dependencies_found":2,"checked":2,"not_checked_over_limit":0,"lookup_failed":0,"vulnerable_packages":1,"known_vu…
Financial figures over time from SEC XBRL filings for a US-listed company by ticker or CIK: revenue, net income, EPS, assets, liabilities, cash, operating income, equity, shares, or any us-gaap tag. Annual or quarterly series with period dates, fiscal year, form, filing date and accession number, latest filing per period. Pairs with sec_filings. Raw public data, not investment advice. Price $0.01 USDC per call via x402. Example output: {"company":{"name":"Apple Inc.","cik":"320193"},"concept":{"tag":"NetIncomeLoss","label":"Net Income (Loss) Attributable to Parent","unit":"USD"},"period":"ann…
Screenshot any public web page with a real headless Chrome: url in, PNG or JPEG out as base64 in JSON, plus final URL after redirects, HTTP status, page title and size. Set viewport width and height, or full_page=true for the whole page. For agents that need to see a page, check a layout or keep visual proof. Price $0.015 USDC per call via x402. Example output: {"url":"https://example.com/","final_url":"https://example.com/","http_status":200,"title":"Example Domain","width":1280,"height":800,"full_page":false,"format":"png","bytes":21034,"image_base64":"iVBORw0KGgo...","data_url_prefix":"dat…
Added "text_rerank" and "text_similarity" (38 tools before, 40 now)
Rerank search results or RAG chunks by relevance to a query: JSON body {query, documents, top_k}. Up to 50 documents (strings or {id, text}), each up to 2,000 chars. Returns the documents sorted by a 0-1 relevance score from the bge-reranker-base cross-encoder. Texts are not stored. Price $0.005 USDC per call via x402. Example output: {"documents":3,"returned":2,"model":"baai/bge-reranker-base","results":[{"rank":1,"index":0,"score":0.9312,"text":"Photosynthesis turns light, water and carbon dioxide into sugar."},{"rank":2,"index":2,"score":0.4105,"text":"Chlorophyll absorbs sunlight in leave…
Semantic similarity of two texts for RAG, dedupe and matching: JSON body {a, b}, each up to 8,000 chars, any language. Returns a cosine score from bge-m3 embeddings plus a rough band (near_duplicate, high, related, weak, unrelated). Texts are not stored. Price $0.003 USDC per call via x402. Example output: {"similarity":0.8123,"band":"high","metric":"cosine","model":"baai/bge-m3","dimensions":1024,"chars":{"a":23,"b":27}}
Added "dependency_audit"; changed the definition of "federal_register_search", "package_advisories", "papers_search" and 3 more (37 tools before, 38 now)
Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Search the US Federal Register: final rules, ⟨72 unchanged words⟩
Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Check a package before installing it: known vulnerabilities ⟨77 unchanged words⟩
Certificate recorded, valid to 2027-01-23
Authorization not required
Added "papers_search" (36 tools before, 37 now)
Scholarly paper search for research agents: keywords or a DOI in, matching papers out with title, authors, year, venue, DOI, citation count, open access PDF or page link, retraction flag and abstract. Filter by year range and open access, sort by relevance, citations or newest. Source OpenAlex, Crossref fallback. Price $0.006 USDC per call via x402. Example output: {"total_matches":136358,"returned":1,"papers":[{"title":"Example paper on retrieval augmented generation","authors":["A. Author","B. Author"],"authors_total":2,"year":2024,"venue":"Example Journal","doi":"10.1234/example.5678","doi…
Added "federal_register_search", "package_advisories", "pii_redact" and 2 more (31 tools before, 36 now)
Search the US Federal Register: final rules, proposed rules, notices and presidential documents with title, agencies, publication date, effective date, comment deadline, docket IDs, abstract and links. Filter by keyword, type, agency slug and date range. Public domain data, no legal advice. Price $0.005 USDC per call via x402. Example output: {"total_matches":42,"returned":1,"documents":[{"document_number":"2026-21706","type":"Proposed Rule","title":"Example proposed rule","agencies":["Treasury Department"],"publication_date":"2026-10-23","effective_on":null,"comments_close_on":"2026-12-22","…
Check a package before installing it: known vulnerabilities for one npm, PyPI, cargo, Go or Maven package version (OSV.dev), fixed-in version, latest version and release date, licence, deprecated flag, and a safe, caution or avoid verdict with reasons. Version defaults to latest. Price $0.005 USDC per call via x402. Example output: {"ecosystem":"npm","name":"lodash","version":"4.17.20","version_checked":"requested","verdict":"avoid","reasons":["5 known advisories affect this version (worst: high)","a newer version exists"],"vulnerabilities":{"count":5,"by_severity":{"HIGH":2,"MODERATE":3},"it…
Scrub text before it goes to a model or a log: JSON body {text, mask} (max 100,000 chars). Finds emails, phones, SSNs, cards (Luhn), IBANs, IPs, MAC addresses, API keys, JWTs, private keys, wallet addresses. mask is label, hash or star. Returns redacted text and counts. Not stored. Price $0.003 USDC per call via x402. Example output: {"redacted":"Contact [EMAIL] or [PHONE]. Card [CREDIT_CARD].","mask":"label","total_found":3,"counts":{"email":1,"phone":1,"credit_card":1},"findings":[{"type":"email","start":8,"end":20,"length":12}]}
Unknown → Live
First tool surface recorded: 31 tools (server version 1.0.0)
https://agents.crowdspark.me/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 10 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Scholarly paper search for research agents: keywords or ⟨82 unchanged words⟩
Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Scrub text before it goes to a model ⟨80 unchanged words⟩
Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Rule-based prompt-injection screen for untrusted text such as ⟨61 unchanged words⟩
Free tier: 25 calls/day per IP with header X-Free-Call: 1 (or ?free=1), then pay per call. Recent SEC EDGAR filings for a US-listed company ⟨84 unchanged words⟩
Audit a whole project before an agent installs or runs it: JSON body {manifest, type, readme}. manifest is package.json (npm) or requirements.txt (PyPI) text. Checks up to 25 dependencies against OSV.dev advisories, deprecation and latest versions, and screens the optional README for prompt injection. Returns one safe, caution or avoid verdict plus a ranked fix list (upgrade to version X). Price $0.05 USDC per call via x402. Example output: {"verdict":"avoid","ecosystem":"npm","manifest_type":"package.json","summary":{"dependencies_found":2,"checked":2,"not_checked_over_limit":0,"lookup_faile…
Rule-based prompt-injection screen for untrusted text such as scraped web pages, emails and tool output. JSON body {text} (max 50,000 chars). Detects instruction-override phrasing, role-spoofing tags, data-leak links and hidden Unicode in 6 languages. Returns verdict safe, suspicious or malicious, a 0-100 score and matched spans. Text is not stored. Price $0.005 USDC per call via x402. Example output: {"verdict":"safe","score":0,"chars":56,"categories":{},"matches":[]}
Recent SEC EDGAR filings for a US-listed company by ticker or CIK: form type, filing and report dates, 8-K item codes with plain labels, accession number and direct document links. Filter by form (8-K, 10-K, 10-Q, 4, 13F-HR, comma list), since date and limit. Raw public data, not investment advice. Price $0.005 USDC per call via x402. Example output: {"company":{"name":"Apple Inc.","cik":"320193","tickers":["AAPL"],"exchanges":["Nasdaq"],"sic_description":"Electronic Computers","fiscal_year_end":"0926"},"filters":{"form":["8-K"],"since":null,"limit":3},"matched":12,"returned":1,"filings":[{"f…