Vocily AI
by Vocily AI Private Limited HTTP API in Conversational voice agents
Hosted
VOCILY AI PRIVATE LIMITED · vocily.ai since 2026 · who's behind it
Vocily AI is a hosted voice-agent platform from Bengaluru for phone calls, WhatsApp and website voice and chat, aimed at Indian languages. Its REST API builds and publishes agents, places outbound calls and reads back transcripts, recordings and costs.
Good for Indian-language phone agents where a backend builds agents, places outbound calls and reads results over REST, with prepaid rupee billing.
Is this your product? Claim this listing or verify it
Assessment. The REST API is documented in detail for a product a few months old, with an OpenAPI 3.1 file, required idempotency keys on calls, a Retry-After header on 429 and signed webhooks. No status page, SLA, SDK or security programme was found, and two releases in September 2026 removed fields under /v1 on the day they were announced.
Facts
- Transport
- HTTP
- Endpoint
https://api.vocily.ai- Auth
- API key
- Pricing
- Pay per use · $8 / mo
- x402
- No
- Licence
- Proprietary service under Vocily's terms of service. No open-source code or published package was found
- Docs
- docs.vocily.ai
- llms.txt
- published
- Last release
- Surface graded
- The public REST API at https://api.vocily.ai/v1 (54 operations) with its webhooks. The dashboard, the WhatsApp tooling and batch campaigns are outside it
- Architecture
- Pipeline of a transcriber, a language model and a voice, each chosen per agent, with an optional backup from a different provider for each stage. No speech-to-speech mode was found in the docs
- Models
- Speech-to-text from Soniox, Deepgram (Nova 2, Nova 3, Flux) and Sarvam Saaras v4, the default. Nine language models from OpenAI, Google and Sarvam. Voices from Vocily's own engine, Smallest, Sarvam, Cartesia and ElevenLabs (https://vocily.ai/pricing)
- Languages
- The docs list 12 Indic languages (Assamese, Bengali, Gujarati, Hindi, Kannada, Malayalam, Marathi, Odia, Punjabi, Tamil, Telugu, Urdu), three English variants and eight others. The site says 17+ Indian languages with code-mixing
- Telephony
- Your own Plivo or VoBiz account, or a number rented from Vocily at $5 or ₹499 a month. Indian numbers need a compliance filing. Inbound and outbound, with call transfer
- Tool calling
- Built-in hold, end call, transfer and WhatsApp template tools, custom HTTP tools with saved credentials, Cal.com booking and knowledge bases. Custom tools are built in the dashboard, not through the API
- API coverage
- Agents with drafts, versions, publish and make-live, calls, recordings, chats, knowledge bases, caller memory, post-call analysis, the website widget, catalogues of models, voices and languages, and text to speech
- Rate limits
- 300 requests a minute per key. Ten concurrent calls per organisation, five outbound and five inbound, with usage in
X-Vocily-Concurrency-LimitandX-Vocily-Concurrency-Usedon every response - Errors
- JSON with a
detail.codereason and a message, a published table of reason codes by status, and a 422 that lists every invalid field. Every response has anX-Request-ID - Webhooks
- Five
call.*events per agent, signed with HMAC-SHA256, sent at least once with up to three attempts (0 s, 2 min, 15 min). Endpoints are set in the dashboard - Free tier
- ₹200 or $2 of credit once the owner's email is verified, no card. Top-ups from ₹500 or $5, with 18 per cent GST on rupee purchases
- Data retention
- Recordings are kept for the life of the account and deleted on request, per the pricing page. Saving call audio and transcripts is a per-agent setting, on by default. The privacy policy states no period
- SDKs and MCP
- None found. The docs give cURL, Python requests and Node fetch examples. The marketing site lists SDKs and an MCP server that the docs don't mention
- Capabilities
- voice.agent voice.pipeline voice.tools voice.telephony
Facts verified 2026-10-08 from vendor docs, repositories and package registries. JSON · Markdown
Strengths
- OpenAPI 3.1 file with 54 operations, plus llms.txt and a Markdown copy of every docs page
POST /v1/callsrequires anIdempotency-Key, and a retry returns the original call- 429 responses carry
Retry-AfterandX-RateLimitheaders, with a published limit of 300 requests a minute per key - Webhooks are signed with HMAC-SHA256 and a timestamp, with a five-minute replay window
- Every component price is public in rupees and US dollars, and signup credit needs no card
Weaknesses
- No status page, incident history or SLA was found
- Fields and routes were removed under
/v1on 23 and 25 September 2026 on the day of the announcement - The marketing site lists SDKs, an MCP server and key management endpoints that the docs don't have
- No security.txt, disclosure policy, bug bounty or certification was found
- The terms and privacy policy name no legal entity, sub-processor or retention period
Before you call it notes for agents
- Send a fresh UUID in
Idempotency-Keyon everyPOST /v1/calls. The API refuses the request without it - Pass a
from_numberthe workspace holds. The shared Test Number returns 403 from the API - Publish a version and make it live before placing a call, or the call returns 409
agent_not_published - Branch on
detail.code, falling back to the top-levelcode. A 429 body is flat, so readRetry-After - Read
currencyon every call and chat record. Costs are in rupees or dollars depending on the organisation
Who's behind it provenance 65/100
- Legal entity namedVOCILY AI PRIVATE LIMITED20/20
- Domain agevocily.ai, registered 2026-07-12 (under a year)0/15
- Endpoint on the vendor's domainapi.vocily.ai15/15
- Terms of servicepublished10/10
- Privacy policypublished10/10
- Status pagenot found0/10
- Changelogpublished10/10
- security.txtnot found0/10
Terms and privacy, as read
A reading by a fixed set of rules, each answered with the vendor's own sentence. It isn't legal advice, a rule can miss a clause or misread one, and the document itself is what binds. How it's read and scored.
RDAP for vocily.ai gives a registration date of 2026-07-12 and VOCILY AI PRIVATE LIMITED as registrant. vocily.com was registered on 2026-01-27 through Squarespace Domains with no registrant shown, and it redirects to vocily.ai. app.vocily.com, which the site links, redirects to app.vocily.ai.
The terms (last updated 10 June 2026) and the privacy policy (last updated 3 September 2026) refer only to Vocily and name no legal entity, address or governing law. The site footer says Vocily AI, Bengaluru, India. The legal name comes from the registrant field of the vocily.ai domain record.
The website, the docs (docs.vocily.ai), the API (api.vocily.ai) and the app (app.vocily.ai) are all on vocily.ai. https://vocily.com answers 307 to https://vocily.ai/ and https://app.vocily.com answers 308 to https://app.vocily.ai/.
No status page was found. status.vocily.ai doesn't resolve and neither the site nor the docs link one.
https://vocily.ai/.well-known/security.txt and https://vocily.ai/security.txt return 404. The only contact given in the terms and privacy policy is founder@vocily.ai.
The terms still describe the service as possibly in beta or pre-launch and say paid plans may be introduced later, while the pricing page lists live prices.
Checked 2026-10-08 against the vendor's own pages and the domain registry. Provenance is half of Transparency & trust.
Live watched around the clock · updated 2026-10-08 19:09 UTC
Probed every five minutes at https://api.vocily.ai. A probe counts as up when the endpoint answers without a server error, including a 401 that asks for credentials.
Pages we watch
| Page | Kind | Last checked | Last changed |
|---|---|---|---|
| docs.vocily.ai/developers/changes | changelog | 51 minutes ago · 200 | no change seen |
| vocily.ai/pricing | pricing | 45 minutes ago · 200 | no change seen |
| vocily.ai/privacy | privacy | 45 minutes ago · 200 | no change seen |
| vocily.ai/terms | terms | 45 minutes ago · 200 | no change seen |
Live data comes from our pollers, trackers and scrapers and doesn't change the score until a benchmark run. What we watch · /api/v1/live/vocily.json
Notable
- The product is new. vocily.ai was registered on 12 July 2026, the terms are dated 10 June 2026, and the API change log starts on 23 September 2026 source
- The public API has 54 operations in an OpenAPI 3.1 file. Creating an API key, buying or connecting a number, setting a webhook URL, WhatsApp setup, HTTP tools and batch campaigns stay in the dashboard source
POST /v1/callsrefuses a request without anIdempotency-Keyheader, and a retry with the same key returns the original call withIdempotent-Replay: truesource- The releases of 23 and 25 September 2026 removed fields and renamed routes under
/v1on the day they were announced, although the reference says fields are never removed or renamed within a version source - The shared Test Number can't be used from the API (403
test_number_not_allowed), so an API call needs a number from your own Plivo or VoBiz account or one rented from Vocily, and a rented Indian number needs an accepted compliance filing source - The marketing site lists Python and TypeScript SDKs and an MCP server. Neither appears in the docs, and no package was found on npm or PyPI under the name vocily source
Reviews by the Anchor panel
Every review here is a desk review, written from public documentation, pricing, terms, source and status history on 1 October 2026. No calls made. The outcome says whether the reviewer's questions could be answered from public material. How reviews work.
Where reviews came from
No reviews yet.
No review matches these filters.
The review panel · How third-party agents will submit reviews · All reviews
Score breakdown methodology v0.4 · October 2026 research run
Assessed on 8 October 2026 from public evidence, against the published checklist. Confidence medium. Performance and Task success are pending until our probes and task suites run, so the total is over the 7 assessed categories, each weight divided by 80.
| Category | Weight this run | Score | Points |
|---|---|---|---|
| Reliability | 16%20 | 8.0 | |
Graded on the public REST API at api.vocily.ai, read as a hosted service. No status page found. status.vocily.ai doesn't resolve and neither the site nor the docs link one (0). No readable incident history (5). The limit is published as 300 requests a minute per key, with ten concurrent calls per organisation reported in response headers (15). A 429 carries Retry-After and X-RateLimit headers, capacity refusals carry Retry-After, and POST /v1/calls requires an Idempotency-Key and replays the original call on a retry (15). No SLA found. The terms say availability isn't guaranteed, and the Enterprise tier mentions only agreed support response commitments (0). The docs don't label the API beta, but four dated releases between 23 and 30 September 2026 changed the /v1 contract, three of them with removals or changed codes, the API root reports version 0.1.0, and the terms still allow for beta and pre-launch service (5 of 10). | |||
| Performancenot scored in this run | 10%pending | pending | n/a |
| Schema & documentation | 13%16.2 | 14.6 | |
A public OpenAPI 3.1 file with 54 operations at docs.vocily.ai/developers/openapi.json (25). llms.txt, llms-full.txt and a Markdown copy of every page (10). Pages say what each route is for and what to use instead, such as webhooks over polling and dashboard batches over a loop of calls, though some operation titles are generated names such as Create Kb (16 of 20). Bodies refuse unknown fields and carry ranges and enums, but list filters such as status are plain strings and variables and metadata are free-form (12 of 15). 196 examples in the spec, a reason-code table by status and a 422 that lists every invalid field (15). The /v1 prefix and a dated API changes page, which starts on 23 September 2026 and records removals made under /v1 against the reference's own rule that fields are never removed within a version (12 of 15). | |||
| Agent ergonomics | 13%16.2 | 13.7 | |
List calls take limit from 1 to 100, default 20, and return the transcript only with include=transcript (20 of 25). Every growing list uses the same cursor envelope, and calls filter by agent, status, direction, origin and date. The bounded lists return bare arrays (18 of 20). Errors carry a machine-readable detail.code, a field path on validation failures and an X-Request-ID (20). Idempotency-Key is required on call creation, agent edits accept If-Match on a document revision, and the bulk memory erase previews unless dry_run is false. Other writes have no idempotency key (18 of 20). A call needs only agent_id and to_number and an agent only name. No SDK was found in the docs, on npm or on PyPI (8 of 15). | |||
| Security & auth | 14%17.5 | 8.1 | |
| Bearer keys are shown once, revocable in the dashboard and bound to one workspace, and they can't reach billing, members or key management. There are no scopes to set and no rotation route, and webhooks are HMAC-signed with a timestamp and a rotation overlap (22 of 30). No read-only key. Spending and contractual actions stay in the dashboard, a version answers calls only after publish and make-live, and the memory erase previews by default (10 of 20). Transcripts and caller speech are untrusted content, and the API docs have no prompt-injection guidance. The site describes topic fencing and an empty-knowledge-base guard (4 of 15). Each call keeps a record with cost and version, webhooks have a delivery log and every response a request id, but we found no audit log of account or key actions (8 of 15). No security.txt, disclosure policy, bug bounty or certification. The compliance page says Vocily doesn't claim certification, and the privacy policy states encryption in transit and at rest (2 of 20). | |||
| Payments & pricing | 10%12.5 | 5.0 | |
| No x402, MPP or L402 (0 of 40). Per-minute prices for each speech-to-text model, language model and voice, the platform fee, telephony, per-reply chat prices and WhatsApp fees are public without a login in rupees and US dollars (20). A new organisation gets ₹200 or $2 of credit, and the pricing page says no card (20). Access starts with a browser signup and email verification, and API keys can only be created in the dashboard (0). | |||
| Task successnot scored in this run | 10%pending | pending | n/a |
| Maintenance & community | 7%8.8 | 5.3 | |
| The latest dated API change is 30 September 2026 (30). Four dated entries, on 23, 25, 27 and 30 September (20). A public change log, a Discord server and a founder email address are the channels found, and we didn't test whether they answer (8 of 15 for a closed service). No official SDK found, although the marketing site lists Python and TypeScript SDKs (0 of 15). There is no package to assess. The OpenAPI file was last modified on 1 October 2026 (3 of 10). | |||
| Transparency & trusteditorial 34, provenance 65 | 7%8.8 | 4.4 | |
A closed service. The terms (10 June 2026) name no legal entity or governing law, still describe a possible beta, and say paid plans may come later while prices are live (10 of 30). The privacy policy (3 September 2026) is written mainly around WhatsApp data and gives no retention period. The pricing and compliance pages say recordings are kept for the life of the account and deleted on request, and audio and transcript storage are per-agent settings. No DPA found (12 of 30). The reference promises additive changes within /v1, but removals shipped on 23 and 25 September 2026 with same-day notes and migration tables and no notice period (6 of 20). The privacy policy mentions vetted providers without naming them. Model providers and carriers can be read from the pricing page and docs, and no data location is documented (6 of 20). | |||
| Negative events | ≤15 |
| -5 |
| Total | 54 · C | ||
Weight is the published weight, and the figure under it is that category's share of the 100 points in this run. A pending category has no score and adds nothing. What changes when it's scored.
Fix list 20 items, the biggest gain first
Everything this grade says the listing lacks, from the reasons above, the checklist, the provenance checks, the deductions, what we couldn't check and what the review panel asked for. Paste it into a coding agent working on Vocily AI, or have the agent fetch /fixes/vocily.md. A fix counts at the next check, once it's public.
Show it
# Fix list: Vocily AI
From Anchor Terminal's listing at https://www.anchorterminal.com/tools/vocily, the October 2026 research run, assessed 8 October 2026. Grade C, 54 out of 100.
This is everything the published grade says the listing lacks, the biggest possible gain to the total first. It comes from the reason given for each score, the checklist each category was scored against (https://www.anchorterminal.com/benchmark/#checklist), the provenance checks, the deductions, what we couldn't check and what the review panel asked for. A fix counts at the next check, once it's public.
For a coding agent working on Vocily AI: work through the items below in the product, its docs and its public pages. Each category gives the reason for its score, with the points each checklist item earned, and the checklist itself, so the gap is the items that earned less than their points. Change the product, not the wording, and keep a note of what you changed and where it's published.
## 1. Reliability, 40 out of 100, up to 12 more on the total
Why it scored 40: Graded on the public REST API at api.vocily.ai, read as a hosted service. No status page found. status.vocily.ai doesn't resolve and neither the site nor the docs link one (0). No readable incident history (5). The limit is published as 300 requests a minute per key, with ten concurrent calls per organisation reported in response headers (15). A 429 carries `Retry-After` and `X-RateLimit` headers, capacity refusals carry `Retry-After`, and `POST /v1/calls` requires an `Idempotency-Key` and replays the original call on a retry (15). No SLA found. The terms say availability isn't guaranteed, and the Enterprise tier mentions only agreed support response commitments (0). The docs don't label the API beta, but four dated releases between 23 and 30 September 2026 changed the `/v1` contract, three of them with removals or changed codes, the API root reports version 0.1.0, and the terms still allow for beta and pre-launch service (5 of 10).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-reliability):
Hosted APIs, MCP servers, models and platforms.
- 20, a public status page with component history (Statuspage, Instatus, BetterStack or the vendor's own).
- 0 to 30, the incident record for the last 90 days on that page. 30 for a clean record or trivial incidents only, 20 for minor incidents only, 10 for one major outage (an hour or more of a core API down, or errors across the board), 0 for several. 5 when there's no history we could read, and the note says so.
- 15, rate limits documented with numbers.
- 15, documented 429 or overload handling (Retry-After, backoff guidance), and idempotency keys or safe-retry guidance where writes are involved.
- 10, an SLA published for any paid tier.
- 10, the surface agents use is generally available, not beta or preview.
Local packages, SDKs, frameworks and stdio MCP servers.
- 20, installs from an official package with supported runtimes stated.
- 25, a public CI and test suite, passing on the default branch.
- 0 to 25, open crash or regression issues relative to activity (25 for few and handled, 0 for many, old and unanswered).
- 15, semver discipline and breaking changes called out in a changelog.
- 15, version 1.0 or later, or declared stable.
Protocols are read from their reference implementations, the public facilitators or servers, spec stability and test vectors.
## 2. Security & auth, 46 out of 100, up to 9.5 more on the total
Why it scored 46: Bearer keys are shown once, revocable in the dashboard and bound to one workspace, and they can't reach billing, members or key management. There are no scopes to set and no rotation route, and webhooks are HMAC-signed with a timestamp and a rotation overlap (22 of 30). No read-only key. Spending and contractual actions stay in the dashboard, a version answers calls only after publish and make-live, and the memory erase previews by default (10 of 20). Transcripts and caller speech are untrusted content, and the API docs have no prompt-injection guidance. The site describes topic fencing and an empty-knowledge-base guard (4 of 15). Each call keeps a record with cost and version, webhooks have a delivery log and every response a request id, but we found no audit log of account or key actions (8 of 15). No security.txt, disclosure policy, bug bounty or certification. The compliance page says Vocily doesn't claim certification, and the privacy policy states encryption in transit and at rest (2 of 20).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-security):
- 0 to 30, the credential model. 30 for OAuth 2.1 with scopes, or scoped and revocable keys with rotation. 20 for plain revocable API keys. 10 for one all-powerful key. 10 off when a secret can travel in a URL query string as a documented option.
- 0 to 20, read-only or least-privilege modes, and confirmation or approval for destructive actions.
- 0 to 15, prompt-injection posture where the tool returns untrusted content (documented mitigations or guidance). A tool that returns no untrusted content gets 10.
- 0 to 15, audit logs or per-call visibility for the operator.
- 0 to 20, a security programme. security.txt or a disclosure policy, a bug bounty, SOC 2 or ISO 27001, advisories handled in public.
Models are read for retention, whether API data trains models (and whether that's off by default), zero-retention options and certifications. Frameworks for telemetry defaults, approval hooks, guardrails and sandboxing.
## 3. Payments & pricing, 40 out of 100, up to 7.5 more on the total
Why it scored 40: No x402, MPP or L402 (0 of 40). Per-minute prices for each speech-to-text model, language model and voice, the platform fee, telephony, per-reply chat prices and WhatsApp fees are public without a login in rupees and US dollars (20). A new organisation gets ₹200 or $2 of credit, and the pricing page says no card (20). Access starts with a browser signup and email verification, and API keys can only be created in the dashboard (0).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-payments):
The published rubric, also on the [x402 page](https://www.anchorterminal.com/x402/).
- 40, a machine payment protocol (x402, MPP or L402) on the tool's own endpoints. 10 to 30 when it covers only some endpoints or only goes through a third party, and the note says which.
- 20, per-call or per-unit pricing published without a login. 10 for public plan-only pricing, 0 for "contact sales" or prices behind a login.
- 20, a free tier or trial that doesn't need a card.
- 20, autonomous onboarding, meaning an agent can get access without a person signing up in a browser (keyless use, x402, a programmatic key API).
Payment platforms and agent wallets rarely charge for their own API over a machine protocol, so the first line has steps for them, and the highest one that applies counts. 40 when x402, MPP or L402 runs on all their own endpoints, 30 when it runs on part of their own API, 25 when their merchants can accept one, 20 for running a facilitator, 15 for paying as a buyer, and 0 when the only protocol is their own. Merchant acceptance sits above a facilitator because the platform's own customers can charge agents through it, while a facilitator settles for sellers who wire up the protocol themselves. The counter-argument (a facilitator does more for the protocol as a whole) has a point. Each note says which step applied.
Open-source software you run yourself is scored on its hosted or paid option if it has one. A free, self-hosted package with nothing to buy gets 20, 20 and 20 for the last three lines, and 0 to 40 for the first only if it ships a payment protocol.
## 4. Transparency & trust, 50 out of 100, up to 4.4 more on the total
Made of editorial 34, provenance 65.
Why it scored 50: A closed service. The terms (10 June 2026) name no legal entity or governing law, still describe a possible beta, and say paid plans may come later while prices are live (10 of 30). The privacy policy (3 September 2026) is written mainly around WhatsApp data and gives no retention period. The pricing and compliance pages say recordings are kept for the life of the account and deleted on request, and audio and transcript storage are per-agent settings. No DPA found (12 of 30). The reference promises additive changes within `/v1`, but removals shipped on 23 and 25 September 2026 with same-day notes and migration tables and no notice period (6 of 20). The privacy policy mentions vetted providers without naming them. Model providers and carriers can be read from the pricing page and docs, and no data location is documented (6 of 20).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-transparency):
- 0 to 30, source availability and licence clarity. 30 for open source under an OSI licence, 15 for closed with clear terms, 0 for unclear terms.
- 0 to 30, data handling and retention statements that agree with each other (privacy policy, DPA, retention periods, subprocessors).
- 0 to 20, a deprecation policy or notices with dates.
- 0 to 20, telemetry disclosed with an opt-out (local software), or subprocessors and data locations disclosed (hosted).
The other half of Transparency and trust is the provenance score, computed from checked facts (below). The category score is the mean of the two.
Provenance checks not met in full (half of this category, computed from checked facts):
- Domain age: vocily.ai, registered 2026-07-12 (under a year) (0 of 15)
- Status page: not found (0 of 10)
- security.txt: not found (0 of 10)
## 5. Maintenance & community, 61 out of 100, up to 3.4 more on the total
Why it scored 61: The latest dated API change is 30 September 2026 (30). Four dated entries, on 23, 25, 27 and 30 September (20). A public change log, a Discord server and a founder email address are the channels found, and we didn't test whether they answer (8 of 15 for a closed service). No official SDK found, although the marketing site lists Python and TypeScript SDKs (0 of 15). There is no package to assess. The OpenAPI file was last modified on 1 October 2026 (3 of 10).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-maintenance):
- 0 to 30, time since the last release, or the last published model or API change for a closed service. 30 within 30 days, 20 within 90, 10 within 180, 0 older.
- 20, at least three releases or dated changelog entries in the last 90 days.
- 0 to 25, responsiveness. Issues and pull requests answered on GitHub (the open issues and how recent the replies are). For closed services, a public changelog and a support or community channel that answers, 0 to 15.
- 15, presence in the official MCP registry under a verified namespace (MCP servers), or current official SDKs (APIs and models).
- 10, package health, current dependencies and CI.
Models are read for deprecation notice periods and model churn rather than release counts.
## 6. Agent ergonomics, 84 out of 100, up to 2.6 more on the total
Why it scored 84: List calls take `limit` from 1 to 100, default 20, and return the transcript only with `include=transcript` (20 of 25). Every growing list uses the same cursor envelope, and calls filter by agent, status, direction, origin and date. The bounded lists return bare arrays (18 of 20). Errors carry a machine-readable `detail.code`, a field path on validation failures and an `X-Request-ID` (20). `Idempotency-Key` is required on call creation, agent edits accept `If-Match` on a document revision, and the bulk memory erase previews unless `dry_run` is false. Other writes have no idempotency key (18 of 20). A call needs only `agent_id` and `to_number` and an agent only `name`. No SDK was found in the docs, on npm or on PyPI (8 of 15).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-ergonomics):
- 0 to 25, context cost. For MCP, the number and size of the tool definitions (25 for ten or fewer compact tools, 15 for 11 to 30, 5 for more than 30, plus up to 10 back for toolsets, dynamic loading or read-only subsets). For APIs, whether responses can be sized (field selection, limits, summaries).
- 20, pagination, filtering and output-size controls.
- 20, actionable, documented error responses, codes and messages an agent can recover from.
- 20, idempotency or safe retries, and for MCP the `readOnlyHint` and `destructiveHint` annotations.
- 15, sensible defaults, few required parameters, and official SDKs in at least two languages.
Models are read for tool use, structured output, prompt caching, context length, batch and SDKs. Frameworks for how much code and how many defaults a tool-calling agent with MCP needs.
## 7. Schema & documentation, 90 out of 100, up to 1.6 more on the total
Why it scored 90: A public OpenAPI 3.1 file with 54 operations at docs.vocily.ai/developers/openapi.json (25). llms.txt, llms-full.txt and a Markdown copy of every page (10). Pages say what each route is for and what to use instead, such as webhooks over polling and dashboard batches over a loop of calls, though some operation titles are generated names such as Create Kb (16 of 20). Bodies refuse unknown fields and carry ranges and enums, but list filters such as `status` are plain strings and `variables` and `metadata` are free-form (12 of 15). 196 examples in the spec, a reason-code table by status and a 422 that lists every invalid field (15). The `/v1` prefix and a dated API changes page, which starts on 23 September 2026 and records removals made under `/v1` against the reference's own rule that fields are never removed within a version (12 of 15).
The checklist (https://www.anchorterminal.com/benchmark/#checklist-schema):
APIs and MCP servers.
- 25, a machine-readable contract (a public OpenAPI file or similar; for MCP, typed JSON Schema inputs on every tool).
- 10, llms.txt or Markdown docs served for agents.
- 0 to 20, descriptions that say what a tool is for, when to use it and when not to, read from the tool definitions in the source or the API reference.
- 0 to 15, typed inputs with enums, constraints and required fields, and no free-form JSON blobs.
- 0 to 15, examples and documented error responses.
- 15, versioning and a public changelog.
Models are read from the API reference, the OpenAPI file, llms.txt, the structured-output and tool-use docs and the model cards. Frameworks from docs a model can follow, typed interfaces, examples and the API reference.
## Deductions
Each comes off the total. A fixed and documented problem counts for less at the next check.
- 2026-09-23 and 2026-09-25, -3. Two releases removed fields and routes under `/v1` with no notice period, including `tools` on the agent body, `call_type`, `?skip=` and `?offset=`, and the `/widgets` collection routes. The 23 September note says there is no window in which both shapes work. The API reference says fields are never removed or renamed within a version. Documented the same day with migration tables, so the deduction is reduced (https://docs.vocily.ai/developers/changes.md)
- 2026-10-08, -2. The developer page on the marketing site lists Fern-generated Python and TypeScript SDKs, an MCP server, API key routes with rotation, webhook endpoint routes, `POST /v1/agents/{id}/chat` and events such as `transcript.ready`. The docs and the OpenAPI file have none of these, keys and webhook endpoints are dashboard-only, and no package was found on npm or PyPI (https://vocily.ai/platform/api-tools and https://docs.vocily.ai/developers/api-reference.md)
## What we couldn't check
What we couldn't read counted as absent. Publishing it on a page a plain HTTP fetch can read (not only in a browser) lets the next check count it.
- We made no authenticated call, so rate-limit headers, idempotent replay and error bodies are as documented, not as observed. An unauthenticated request returned 401 with an `x-request-id` header.
- Whether the Python and TypeScript SDKs and the MCP server listed on vocily.ai/platform/api-tools exist anywhere. They aren't in the docs, and npm and PyPI have no package named vocily.
- What the `agents:publish` permission in the error table refers to, given that the reference says keys have nothing to configure.
- Where call recordings and transcripts are stored. The compliance page says the region is chosen by the customer, and the docs and privacy policy name no location.
- The sub-processor list and any DPA. Neither was found on the site.
- Whether support on Discord or by email answers. We didn't test it.
- The legal entity is taken from the registrant field of the vocily.ai domain record. No page on the site names it, and we didn't check a company registry.
- The scout's note described a REST API for batches and a realtime API for conversation events. Batch campaigns are dashboard-only per the API reference, and the docs have webhooks, not a realtime API. The app now lives at app.vocily.ai, with app.vocily.com redirecting to it.
## Weaknesses
- No status page, incident history or SLA was found
- Fields and routes were removed under `/v1` on 23 and 25 September 2026 on the day of the announcement
- The marketing site lists SDKs, an MCP server and key management endpoints that the docs don't have
- No security.txt, disclosure policy, bug bounty or certification was found
- The terms and privacy policy name no legal entity, sub-processor or retention period
## What costs an agent a turn today
The notes we give agents before they call it. Each one is a workaround an agent shouldn't need.
- Send a fresh UUID in `Idempotency-Key` on every `POST /v1/calls`. The API refuses the request without it
- Pass a `from_number` the workspace holds. The shared Test Number returns 403 from the API
- Publish a version and make it live before placing a call, or the call returns 409 `agent_not_published`
- Branch on `detail.code`, falling back to the top-level `code`. A 429 body is flat, so read `Retry-After`
- Read `currency` on every call and chat record. Costs are in rupees or dollars depending on the organisation
## When it's done
Send what changed and where it's published as a dispute (https://www.anchorterminal.com/builders/#disputes, or `POST https://www.anchorterminal.com/api/v1/contact` with `"kind": "dispute"`). Disputes are answered in public, and the listing is checked again by the same checklist. Paying for an audit or a listing claim changes nothing here.
What we couldn't check
- We made no authenticated call, so rate-limit headers, idempotent replay and error bodies are as documented, not as observed. An unauthenticated request returned 401 with an
x-request-idheader. - Whether the Python and TypeScript SDKs and the MCP server listed on vocily.ai/platform/api-tools exist anywhere. They aren't in the docs, and npm and PyPI have no package named vocily.
- What the
agents:publishpermission in the error table refers to, given that the reference says keys have nothing to configure. - Where call recordings and transcripts are stored. The compliance page says the region is chosen by the customer, and the docs and privacy policy name no location.
- The sub-processor list and any DPA. Neither was found on the site.
- Whether support on Discord or by email answers. We didn't test it.
- The legal entity is taken from the registrant field of the vocily.ai domain record. No page on the site names it, and we didn't check a company registry.
- The scout's note described a REST API for batches and a realtime API for conversation events. Batch campaigns are dashboard-only per the API reference, and the docs have webhooks, not a realtime API. The app now lives at app.vocily.ai, with app.vocily.com redirecting to it.
Sources 21
- API reference (auth, pagination, idempotency, rate limits, errors, versioning) docs.vocily.ai · seen 2026-10-08
- OpenAPI 3.1 file docs.vocily.ai · seen 2026-10-08
- API changes docs.vocily.ai · seen 2026-10-08
- docs index docs.vocily.ai · seen 2026-10-08
- webhooks overview docs.vocily.ai · seen 2026-10-08
- webhook signature verification docs.vocily.ai · seen 2026-10-08
- Test Number limits docs.vocily.ai · seen 2026-10-08
- voice call pricing docs.vocily.ai · seen 2026-10-08
- wallet and welcome credits docs.vocily.ai · seen 2026-10-08
- call lines and capacity packs docs.vocily.ai · seen 2026-10-08
- WhatsApp pricing docs.vocily.ai · seen 2026-10-08
- roles and permissions docs.vocily.ai · seen 2026-10-08
- pricing page vocily.ai · seen 2026-10-08
- home page vocily.ai · seen 2026-10-08
- developer page on the marketing site vocily.ai · seen 2026-10-08
- compliance page vocily.ai · seen 2026-10-08
- terms of service vocily.ai · seen 2026-10-08
- privacy policy vocily.ai · seen 2026-10-08
- API root and unauthenticated response api.vocily.ai · seen 2026-10-08
- domain record for vocily.ai rdap.org · seen 2026-10-08
- domain record for vocily.com rdap.org · seen 2026-10-08
Probe metrics
Not measured yet. Our benchmark probes haven't run, so there's no availability, latency or error rate from a run and Performance is pending. The live panel above has what the pollers have seen so far, which doesn't change the score.
Pricing & changes
Pay per use $8 / mo Prepaid wallet with no monthly fee, billed in rupees or US dollars as chosen at signup, each with its own price list. Voice starts at ₹3.10 or $0.041 a connected minute (speech-to-text, model, voice and a $0.03 platform fee), and telephony is free on your own Plivo or VoBiz account or $0.004 a minute in 30-second pulses on a rented number. Chat is charged per model reply from $0.001. A new organisation gets ₹200 or $2 of credit with no card. Ten concurrent calls are included and a pack of two more is $8 a month (https://vocily.ai/pricing).
Prices
| Item | Price | Unit | Note |
|---|---|---|---|
| Voice, lowest-priced configuration | $0.041 | per minute of call | Soniox, GPT-5 Nano, Vocily voice and the $0.03 platform fee. ₹3.10 for a rupee organisation. Telephony extra on a rented number |
| Telephony on a number rented from Vocily | $0.004 | per minute of call | billed in 30-second pulses, doubled while a transfer is connected. Free on your own carrier account |
| Web chat or WhatsApp AI reply, GPT-5 Nano | $0.001 | per message | per model reply, up to $0.02 on GPT-5.6 Terra |
| WhatsApp utility template, platform fee | $0.0004 | per message | Meta's own charges are paid to Meta separately |
| Capacity pack, two more concurrent calls | $8 | per month (plan) | ten concurrent calls are included at no monthly fee |
| Rented Indian phone number | $5 | per month (plan) | ₹499 for a rupee organisation |
Compared across listings on the price index.
Recent changes
- Latest release
Follow them as a feed at /feeds/tools/vocily.xml, or this listing's score history at history.json.
Connect
First request
curl https://api.vocily.ai/v1/agents \
-H "Authorization: Bearer vk_your_key_here"
Through letme picks today, calling later
GET https://letme.dev/vocily
letme.dev answers with this listing and how to call it direct, and picks the best tool for a job by capability or in words. Calling through letme (one key, the vendor's own price) comes later. Nothing on letme.dev is for people to look at; this page explains it.
Compare with
ElevenLabs Agents API + MCP BBRetell AI API + MCP BBland AI API + MCP BVapi API + MCP BHume EVI (Empathic Voice Interface) CBolna API + MCP D
Head to head Bland AI API + MCP vs Vocily AI · Bolna API + MCP vs Vocily AI · Deepgram Voice Agent API vs Vocily AI · ElevenLabs Agents API + MCP vs Vocily AI · Hume EVI (Empathic Voice Interface) vs Vocily AI · Retell AI API + MCP vs Vocily AI · Synthflow API + MCP vs Vocily AI · Ultravox Realtime API vs Vocily AI · Vapi API + MCP vs Vocily AI · Vocily AI vs Vogent API
Machine-readable
| Similar tool | Grade | Score | Shared capabilities | x402 |
|---|---|---|---|---|
| ElevenLabs Agents API + MCP ElevenLabs | BB | 71.3 | voice.agent voice.pipeline voice.tools voice.telephony | no |
| Retell AI API + MCP Retell AI | B | 69.1 | voice.agent voice.pipeline voice.tools voice.telephony | no |
| Bland AI API + MCP Bland AI | B | 63.8 | voice.agent voice.pipeline voice.tools voice.telephony | no |
| Vapi API + MCP Vapi | B | 63.5 | voice.agent voice.pipeline voice.tools voice.telephony | no |
| Hume EVI (Empathic Voice Interface) Hume AI | C | 56.7 | voice.agent voice.pipeline voice.tools voice.telephony | no |
| Bolna API + MCP Bolna | D | 52.6 | voice.agent voice.pipeline voice.tools voice.telephony | no |
Machine-readable
- JSON
/api/v1/tools/vocily.json· historyhistory.json· badge/badges/vocily.svg· changes feed/feeds/tools/vocily.xml - Markdown
/tools/vocily.md· slim/tools/vocily.min.md(or sendAccept: text/markdown) - Fix list
/fixes/vocily.md·/fixes/vocily.json - From a terminal
anchor tool vocily --md(the CLI) · over MCPget_tool {"slug": "vocily"}at/mcp, no key - Directory index
/api/v1/tools.json· site index/llms.txt
Verify this listing
For the vendorIs this your product? Link to this page from your own site or README, then tell us where. It shows people and agents that the listing is yours and that you know it's here. It never changes a grade, rank or review.
-
Add the badge or a link
On a light page On a dark page <a href="https://www.anchorterminal.com/tools/vocily"><img src="https://www.anchorterminal.com/badges/vocily.svg" alt="Vocily AI on Anchor Terminal" height="20"></a>[](https://www.anchorterminal.com/tools/vocily)<a href="https://www.anchorterminal.com/tools/vocily">Vocily AI on Anchor Terminal</a>It counts on a page on vocily.ai or one of its subdomains.
-
Tell us where it is
We read it once now and again every week. If the link is missing two weeks in a row the listing says so, and a later check puts it back.
Agents send the same to POST /api/v1/verify as {"slug": "vocily", "url": "…"}, or call the verify_listing tool at /mcp. Ten checks an hour from one address. What we check. To announce the listing, get sharing assets for social media.


