Thousand API

warnings

mcp.thousand-api.com

Certainty for AI Agents. Deterministic MCP tools for dates, crypto, finance. 84 tools.

https://mcp.thousand-api.com/mcpWebsiteNo authMCP 2025-11-25v1.0.0last checked 24 Aug 2026spoke MCP on 3 of 3 checks (30 days)initialize in 734 ms

How to authenticate

Checked against the endpoint by our probe on 24 Aug 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme	No auth
Protected-resource metadata	✕Not found Without it a client has to guess where the authorization server lives.
Anonymous access	Handshake succeeds; 84 tools listable
Credentials demanded in prose	✕network.http_fetch These tools are listed anonymously and their own descriptions ask for an account or key, but no challenge is issued — so a client has nothing to act on and the refusal arrives as a tool error.

What the probe found

warningTools needing credentials are listed without a challenge

1 of the 84 tools listed anonymously say in their own descriptions that they need an account or a key (network.http_fetch), but the endpoint issued no WWW-Authenticate challenge. The requirement is stated only in prose, so a call reaches the tool and comes back as a tool error instead of an authorization step.

No CORS headers for browser-based clients

A cross-origin preflight came back without Access-Control-Allow-Origin, so the endpoint is reachable from native clients only — code running in a web page is stopped by the browser before a request is ever sent.

Tools

convert.base64convert.colorconvert.csvconvert.data_sizeconvert.formatconvert.format_numberconvert.get_qrcodeconvert.markdownconvert.tomlconvert.transform_imageconvert.unitconvert.url_encodingconvert.xmlconvert.yamldata.calc_statsdata.diff_arraysdata.execute_batchdata.merge_jsondata.query_jsondata.sort_jsondata.validate_alldata.validate_formatdata.validate_jsondata.validate_schemadatetime.add_business_daysdatetime.add_calendar_daysdatetime.calc_datetime_diffdatetime.calc_scheduledatetime.check_business_hoursdatetime.check_custom_holidaysdatetime.convert_iso_durationdatetime.convert_japanese_eradatetime.format_relative_timedatetime.generate_test_datesdatetime.get_calendar_monthdatetime.get_cron_nextdatetime.get_current_datetimedatetime.get_holidaysdatetime.is_holidaydatetime.parse_laravel_schedulenetwork.calc_cidrnetwork.check_domain_formatnetwork.check_ip_in_rangenetwork.dns_lookupnetwork.get_exchange_ratenetwork.get_ip_infonetwork.get_page_metanetwork.http_fetchnetwork.inspect_urlnetwork.lookup_postal_codenetwork.resolve_urlsecurity.decode_jwtsecurity.generate_hashsecurity.generate_hmacsecurity.generate_totpsecurity.generate_uuidsecurity.validate_barcodesecurity.validate_luhnsecurity.validate_uuidtext.calc_text_similaritytext.convert_japanesetext.convert_string_casetext.diff_markdown_tablestext.diff_texttext.estimate_tokenstext.extract_text_from_htmltext.generate_random_stringtext.generate_slugtext.get_text_statstext.mask_piitext.split_textutility.calc_color_contrastutility.calc_expressionutility.calc_loanutility.calc_paginationutility.calc_taxutility.compare_versionsutility.convert_coordinatesutility.diagnose_mcputility.generate_color_paletteutility.get_distanceutility.get_tool_schemautility.get_usageutility.search_tools

Contract history

24 Aug 2026v1.0.0first recorded contract

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