{"$schema":"https://verifymcp.io/schemas/trust-report.json","schemaVersion":1,"license":{"name":"CC BY-NC 4.0","url":"https://creativecommons.org/licenses/by-nc/4.0/"},"generatedAt":"2026-11-05T18:55:24.877Z","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp","markdownUrl":"https://verifymcp.io/servers/org-freetts-mcp/mcp.md","server":{"slug":"org-freetts-mcp","name":"FreeTTS","registryName":"org.freetts/mcp","description":"Text to speech in 149 languages: MP3 links from any assistant. Free without an account.","registryStatus":"active","deletedAt":null,"statusMessage":null,"liveness":"live","publisher":{"class":"unknown","claimed":false}},"component":{"slug":"mcp","type":"remote","identifier":"https://mcp.freetts.org/mcp","withdrawn":false,"url":"https://verifymcp.io/servers/org-freetts-mcp/mcp","version":"1.0.5","transport":null,"scoredAt":"2026-11-05T01:16:03.134Z"},"score":{"total":87,"tier":"high trust","status":"scored","weekDelta":1,"history":[{"date":"2026-11-05","total":87},{"date":"2026-11-04","total":87},{"date":"2026-11-03","total":87},{"date":"2026-11-02","total":87},{"date":"2026-11-01","total":87},{"date":"2026-10-31","total":87},{"date":"2026-10-30","total":87},{"date":"2026-10-29","total":86},{"date":"2026-10-28","total":86},{"date":"2026-10-27","total":85},{"date":"2026-10-26","total":85},{"date":"2026-10-25","total":84},{"date":"2026-10-24","total":84},{"date":"2026-10-23","total":83},{"date":"2026-10-22","total":83},{"date":"2026-10-21","total":82},{"date":"2026-10-20","total":82},{"date":"2026-10-19","total":81},{"date":"2026-10-18","total":81},{"date":"2026-10-17","total":81},{"date":"2026-10-16","total":80},{"date":"2026-10-15","total":80},{"date":"2026-10-14","total":79},{"date":"2026-10-13","total":79},{"date":"2026-10-12","total":78},{"date":"2026-10-11","total":78},{"date":"2026-10-10","total":77},{"date":"2026-10-08","total":76},{"date":"2026-10-05","total":75},{"date":"2026-10-04","total":74}]},"categories":[{"name":"Endpoint Security","score":74,"verdict":"fail","reasons":["The endpoint's TLS certificate is valid, in date, and uses a strong key.","No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.","HTTPS is enforced; there's no plaintext access path.","HSTS check failed: the Strict-Transport-Security header is absent.","DNSSEC check failed: this domain isn't protected by DNSSEC."],"codes":[{"code":"tls.valid","args":{}},{"code":"auth.none_no_destructive","args":{}},{"code":"https.enforced","args":{}},{"code":"headers.hsts_absent","args":{}},{"code":"dnssec.absent","args":{}}]},{"name":"Transport & Reachability","score":100,"verdict":"pass","reasons":["Verified streamable-http transport via a live MCP handshake."],"codes":[{"code":"transport.verified","args":{"transport":"streamable-http"}}]},{"name":"Schema Quality & AI Usability","score":85,"verdict":"fail","reasons":["100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).","AI-judged instruction clarity (excellent).","Context-footprint check failed: tool/resource definitions use about 1678 tokens (~119/item across 14 items; 7 tools + 7 resources), over budget; trim descriptions and params.","Usage-examples check failed: none of the tools include examples."],"codes":[{"code":"schema.descriptions","args":{"pct":"100"}},{"code":"schema.ai_quality","args":{"band":"excellent"}},{"code":"schema.footprint_heavy","args":{"avg":"119","items":"14","tools":"7","tokens":"1678","resources":"7"}},{"code":"schema.examples_absent","args":{}}]},{"name":"Stability & Change Management","score":100,"verdict":"pass","reasons":["No destabilizing schema changes in the last 30 days."],"codes":[{"code":"stability.stable","args":{}}]},{"name":"Tool Coverage","score":99,"verdict":"partial","reasons":["100% of tools have a non-trivial description (not blank, and not just the tool's name).","97% of tool parameters carry a description."],"codes":[{"code":"toolquality.descriptions","args":{"pct":"100"}},{"code":"toolquality.param_docs","args":{"pct":"97"}}]},{"name":"Tool Safety","score":100,"verdict":"pass","reasons":["No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.","We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.","An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it."],"codes":[{"code":"toolsafety.injection_clean","args":{}},{"code":"toolsafety.destructive_none","args":{"tools":"7"}},{"code":"toolsafety.manipulation_clean","args":{"units":"9","judged":"9"}}]},{"name":"Capabilities","score":100,"verdict":"pass","reasons":["Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.","Supports UI / widget rendering."],"codes":[{"code":"protocol.supported","args":{"latest":"2026-07-28","version":"2025-11-25"}},{"code":"cap.ui_supported","args":{}}]}],"inconclusive":[],"malware":[],"components":[{"slug":"mcp","type":"remote","identifier":"https://mcp.freetts.org/mcp","withdrawn":false,"score":87,"current":true,"url":"https://verifymcp.io/servers/org-freetts-mcp/mcp","markdownUrl":"https://verifymcp.io/servers/org-freetts-mcp/mcp.md"},{"slug":"freetts-mcp","type":"npm","identifier":"@freetts/mcp","withdrawn":false,"score":77,"current":false,"url":"https://verifymcp.io/servers/org-freetts-mcp/freetts-mcp","markdownUrl":"https://verifymcp.io/servers/org-freetts-mcp/freetts-mcp.md"}],"facts":[{"label":"Endpoint","value":"https://mcp.freetts.org/mcp"},{"label":"Transports","value":"streamable-http"},{"label":"Auth","value":"none"},{"label":"Version","value":"1.0.5"}],"install":{"available":true,"bundleSha256":null},"tools":[{"name":"list_voices","title":"List FreeTTS voices","description":"List FreeTTS voices for a language or a search word, with the voice id to pass to text_to_speech. Says which voices are free and which need a FreeTTS PRO key (HD and Signature). Use it when the user names a language, accent or gender, or asks what voices exist.","inputs":[{"name":"free_only","type":"boolean","required":false,"description":"Only voices that work without a FreeTTS key."},{"name":"gender","type":"string","required":false,"description":"Filter by gender."},{"name":"language","type":"string","required":false,"description":"Language or locale, like 'German', 'de-DE', 'Spanish (Mexico)' or 'en'. Empty lists every language."},{"name":"limit","type":"integer","required":false,"description":"How many to return. Default 15."},{"name":"search","type":"string","required":false,"description":"A word to match in the voice name or personality, like 'Andrew', 'calm' or 'news'."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":176},{"name":"suggest_voice","title":"Suggest a FreeTTS voice","description":"Suggest three FreeTTS voices for a language and a use (audiobook, tutorial, ad, news, children's story, meditation, podcast), with a short reason each. Use it when the user has not named a voice.","inputs":[{"name":"gender","type":"string","required":false,"description":null},{"name":"language","type":"string","required":true,"description":"Language or locale, like 'English (US)', 'de-DE' or 'Portuguese (Brazil)'."},{"name":"use","type":"string","required":false,"description":"What the audio is for, in a few words."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":107},{"name":"text_to_speech","title":"Text to speech (FreeTTS)","description":"Convert text to spoken audio with a FreeTTS voice and return a download link to the MP3 (or WAV with a FreeTTS PRO key). Use it when the user wants text read aloud, narrated, or saved as an audio file. Without a FreeTTS key: standard voices, up to 2,000 characters a call, a short spoken \"FreeTTS\" tag at the end, file kept one hour. With a key: the account's plan (PRO: HD and Signature voices, no tag, 10,000 characters a call, files kept 30 days).","inputs":[{"name":"format","type":"string","required":false,"description":"mp3 (default) or wav (FreeTTS PRO)."},{"name":"include_audio","type":"boolean","required":false,"description":"Also return the audio bytes in the result (large). Default false; the link is enough for most clients."},{"name":"language","type":"string","required":false,"description":"Language of the text when no voice is given, like 'German' or 'pt-BR'."},{"name":"rerender_of","type":"string","required":false,"description":"Read the same words as an earlier result again, in another voice or speed: the audio link (or id) that result returned, from the last 24 hours. The text is then not needed."},{"name":"speed","type":"integer","required":false,"description":"Percent slower (negative) or faster (positive). Default 0."},{"name":"text","type":"string","required":false,"description":"The text to read. Plain text; SSML is not needed. Required unless rerender_of is given."},{"name":"voice","type":"string","required":false,"description":"A FreeTTS voice id from list_voices, like en-US-JennyNeural (a short name like 'Jenny' also works). If empty, a good standard voice for the language is chosen."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":350},{"name":"check_usage","title":"Check FreeTTS usage and plan","description":"Show the FreeTTS plan behind this connection and what is left: characters today or this month, requests a minute, HD voices, watermark. Use it when the user asks about limits, their plan, or why a request was refused.","inputs":[],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":56},{"name":"dialogue_to_speech","title":"Dialogue to speech (two or more voices)","description":"Turn a script with several speakers into one audio file, a different FreeTTS voice per speaker, with a pause between lines. Write each line as 'Name: text'. Use it for two-host shows, interviews, scenes, language lessons with two speakers. Needs a connected FreeTTS PRO account.","inputs":[{"name":"language","type":"string","required":false,"description":"Language of the lines when no voices are given."},{"name":"pause_ms","type":"integer","required":false,"description":"Silence between lines in milliseconds. Default 600."},{"name":"script","type":"string","required":true,"description":"Lines like 'Abd: Tonight we cook shakshuka.' one per line. Names before the colon."},{"name":"voices","type":"object","required":false,"description":"Speaker name to FreeTTS voice id, like {\"Abd\": \"en-US-AndrewNeural\", \"Guest\": \"en-US-EmmaNeural\"}. Unnamed speakers get a voice each."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":180},{"name":"script_to_tracks","title":"Script to timed tracks (Script mode)","description":"Record a script with exact timing, the way FreeTTS Script mode does: (pause 2) is exactly 2 seconds of silence, (beep), (ding) and (click) play a sound, 'CUE:' lines are read in a second voice, 'TRACK: name' starts a new audio file, 'NAME: line' makes a scene with a voice per character. Returns one file with everything plus one file per track. Use it for ear prompter tracks, voiceovers timed to footage, rehearsal tracks, workout or recipe step audio. Needs a connected FreeTTS PRO account.","inputs":[{"name":"count_in","type":"string","required":false,"description":"Spoken count-in before each track, one number a second. Default none."},{"name":"cue_voice","type":"string","required":false,"description":"Voice for CUE: lines and [bracketed] words. Default Aria."},{"name":"line_voice","type":"string","required":false,"description":"Voice for the main lines: a steady voice name or id (Guy, Andrew, Ava, Aria, Jenny, Brian, Emma, Sonia, Ryan, Libby, Natasha, William, Clara, Liam...). Default Guy."},{"name":"my_part","type":"string","required":false,"description":"In a scene, the character you play: their lines become timed gaps for you to say them."},{"name":"paragraph_pause_ms","type":"integer","required":false,"description":"Silence after each paragraph. Default 1000."},{"name":"script","type":"string","required":true,"description":"The script text. See freetts.org/text-to-speech-for-actors for the syntax."},{"name":"sentence_pause_ms","type":"integer","required":false,"description":"Silence after each sentence. Default 500."},{"name":"speed","type":"integer","required":false,"description":"Percent slower or faster for the main lines. Default 0."},{"name":"track_end","type":"string","required":false,"description":"After the last line of each track: nothing, a long beep, or the word End. Default none."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":370},{"name":"transcribe_audio","title":"Transcribe audio (speech to text)","description":"Turn a recording into text with FreeTTS speech to text. Give a public https URL to an audio file (mp3, wav, m4a, ogg, webm). Needs a connected FreeTTS PRO account.","inputs":[{"name":"audio_url","type":"string","required":true,"description":"Public https URL of the audio file."},{"name":"language","type":"string","required":false,"description":"Language of the recording, like 'en-US', 'de-DE', 'Arabic' or 'es', or 'auto' to detect it (default)."}],"outputs":[],"hasOutputSchema":false,"hasExamples":false,"tokenEstimate":108}],"toolsTruncatedAtCapture":false,"diagnostics":{"capturedAt":"2026-11-05T01:16:03.000Z","track":"remote","endpoint":"https://mcp.freetts.org/mcp","declaredUrl":null,"truncated":false,"tls":{"outcome":"valid","label":"Valid","version":"TLS 1.3","cipherSuite":"TLS_AES_128_GCM_SHA256","chainError":null,"certificates":[{"subject":"CN=freetts.org","issuer":"CN=YE2,O=Let's Encrypt,C=US","notBefore":"2026-09-20T10:50:28Z","notAfter":"2026-12-19T10:50:27Z","keyType":"ECDSA","keyBits":256,"isCa":false},{"subject":"CN=YE2,O=Let's Encrypt,C=US","issuer":"CN=Root YE,O=ISRG,C=US","notBefore":"2025-09-03T00:00:00Z","notAfter":"2028-09-02T23:59:59Z","keyType":"ECDSA","keyBits":384,"isCa":true},{"subject":"CN=Root YE,O=ISRG,C=US","issuer":"CN=ISRG Root X2,O=Internet Security Research Group,C=US","notBefore":"2026-05-13T00:00:00Z","notAfter":"2032-09-02T23:59:59Z","keyType":"ECDSA","keyBits":384,"isCa":true},{"subject":"CN=ISRG Root X2,O=Internet Security Research Group,C=US","issuer":"CN=ISRG Root X1,O=Internet Security Research Group,C=US","notBefore":"2026-05-13T00:00:00Z","notAfter":"2032-09-02T23:59:59Z","keyType":"ECDSA","keyBits":384,"isCa":true}]},"dnssec":{"result":"insecure","label":"Not signed","name":"mcp.freetts.org.","steps":[{"zone":".","outcome":"verified","label":"Verified"},{"zone":"org.","outcome":"verified","label":"Verified"},{"zone":"freetts.org.","outcome":"insecure_proven","label":"Unsigned (proven)"}]},"auth":{"outcome":"none","label":"No authorisation required","gate":null,"gateLabel":null,"status":200,"authorizationServers":[]},"httpsRedirect":{"outcome":"https_enforced","label":"HTTPS enforced","status":301},"transports":[{"transport":"streamable-http","outcome":"verified","label":"Verified","status":200,"followed":false}],"provenance":null,"installScripts":[],"installScriptsTotal":null,"vulnerabilities":[],"vulnerabilitiesTotal":null,"dependencies":null},"mismatches":[],"changelog":{"trackingSince":"2026-09-30","recent":[{"id":"chg_01a18f87-2daf-7dc6-ae5d-d8c1fb68028b","kind":"param.required_to_optional","summary":"“text_to_speech” made “text” optional","materiality":"cosmetic","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18f87-2daf-7dc6-ae5d-d8c1fb68028b"},{"id":"chg_01a18f87-2db1-7467-8d39-99857a9bd265","kind":"param.added_optional","summary":"“text_to_speech” added an optional parameter 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“player-old-2”","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18f87-2db2-7e98-9e26-a2cfbd5a2284"},{"id":"chg_01a18f87-2db2-7841-9e9c-037b2b4e6014","kind":"resource.added","summary":"New resource “player-old-1”","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18f87-2db2-7841-9e9c-037b2b4e6014"},{"id":"chg_01a18f87-2db1-7c4c-93ec-6fc173c9e9cc","kind":"resource.uri_changed","summary":"Resource “player” now points somewhere else (ui://freetts/player-v2.html → ui://freetts/player-v4.html)","materiality":"security","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-31","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18f87-2db1-7c4c-93ec-6fc173c9e9cc"},{"id":"chg_01a18a60-63a1-79de-aebf-935d402e53a8","kind":"score.total_changed","summary":"Trust score (86 → 87)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18a60-63a1-79de-aebf-935d402e53a8"},{"id":"chg_01a18a60-63a1-73f1-b595-d2cfe7f0b5f5","kind":"server.version_changed","summary":"Server version (1.0.9 → 1.1.0)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18a60-63a1-73f1-b595-d2cfe7f0b5f5"},{"id":"chg_01a18a60-63a0-7c37-989e-ba1c522a12a7","kind":"resource.added","summary":"New resource “player”","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18a60-63a0-7c37-989e-ba1c522a12a7"},{"id":"chg_01a18a60-63a0-702b-8f8d-2f2bbeb80f11","kind":"check.appeared","summary":"First check of Capabilities (pass)","materiality":"functional","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18a60-63a0-702b-8f8d-2f2bbeb80f11"},{"id":"chg_01a18a60-639e-7d88-924d-3d832985354e","kind":"check.verdict","summary":"Stability (0.97 → pass)","materiality":"security","direction":"neutral","scoreDelta":null,"occurredOn":"2026-10-30","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18a60-639e-7d88-924d-3d832985354e"},{"id":"chg_01a18014-5f38-7d22-81db-c5883fbd308f","kind":"score.total_changed","summary":"Trust score (85 → 86)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-28","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a18014-5f38-7d22-81db-c5883fbd308f"},{"id":"chg_01a175c7-0954-7b55-ae38-27ad8c7faa5a","kind":"score.total_changed","summary":"Trust score (84 → 85)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-26","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a175c7-0954-7b55-ae38-27ad8c7faa5a"},{"id":"chg_01a16b7a-04ba-73ca-95c4-b3bd6be971a4","kind":"score.total_changed","summary":"Trust score (83 → 84)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-24","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a16b7a-04ba-73ca-95c4-b3bd6be971a4"},{"id":"chg_01a1612b-f120-7538-8c14-86893f582e6b","kind":"score.total_changed","summary":"Trust score (82 → 83)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-22","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a1612b-f120-7538-8c14-86893f582e6b"},{"id":"chg_01a156de-5591-7a2e-9c92-10f5abc9a8f4","kind":"score.total_changed","summary":"Trust score (81 → 82)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-20","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a156de-5591-7a2e-9c92-10f5abc9a8f4"},{"id":"chg_01a14769-e073-743f-93c6-2cc80a461edd","kind":"score.total_changed","summary":"Trust score (80 → 81)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-17","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a14769-e073-743f-93c6-2cc80a461edd"},{"id":"chg_01a13d1e-6444-7b11-8063-983d797e4ec3","kind":"score.total_changed","summary":"Trust score (79 → 80)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-15","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a13d1e-6444-7b11-8063-983d797e4ec3"},{"id":"chg_01a132cc-e634-7f27-b4f4-858440bd17de","kind":"score.total_changed","summary":"Trust score (78 → 79)","materiality":"functional","direction":"improvement","scoreDelta":1,"occurredOn":"2026-10-13","url":"https://verifymcp.io/servers/org-freetts-mcp/mcp#chg-chg_01a132cc-e634-7f27-b4f4-858440bd17de"}],"truncated":true,"feedUrl":"https://verifymcp.io/servers/org-freetts-mcp/mcp/changelog.json"},"links":{"html":"https://verifymcp.io/servers/org-freetts-mcp/mcp","markdown":"https://verifymcp.io/servers/org-freetts-mcp/mcp.md","changelogJson":"https://verifymcp.io/servers/org-freetts-mcp/mcp/changelog.json","changelogRss":"https://verifymcp.io/servers/org-freetts-mcp/mcp.xml","external":[{"label":"Remote endpoint","href":"https://mcp.freetts.org/mcp"},{"label":"Repository","href":"https://github.com/freetts/mcp"},{"label":"Website","href":"https://freetts.org/developers/mcp"}]}}