# SavvyCal API + MCP vs Truto Unified Calendar API (slim)

> Truto Unified Calendar scores 60.4 (C) to SavvyCal's 57 (C) for calendar booking. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/savvycal-vs-truto-calendar.md (~4,300 tokens) · this version ~2,180 tokens · JSON https://www.anchorterminal.com/compare/savvycal-vs-truto-calendar.json · canonical https://www.anchorterminal.com/compare/savvycal-vs-truto-calendar
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-07
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Truto Unified Calendar API scores 60.4 (C) on agent readiness against SavvyCal API + MCP's 57 (C), and leads in 5 of 7 scored categories. SavvyCal API + MCP leads on payments & pricing and transparency & trust. Both do calendar booking.

- SavvyCal API + MCP: C 57, rank #815 of 1510 · https://www.anchorterminal.com/tools/savvycal.min.md
- Truto Unified Calendar API: C 60.4, rank #655 of 1510 · https://www.anchorterminal.com/tools/truto-calendar.min.md
- SavvyCal API + MCP, good for An agent booking on a person's SavvyCal links or driving their account through the MCP server. Ahead on Payments & pricing, 30 against 20; Transparency & trust, 73 against 61. Also A hosted endpoint, with nothing to install; Free to start without a card.
- Truto Unified Calendar API, good for Software companies that need their product's agent to read and book across customers' Google, Outlook, Cal.com and Calendly accounts. Ahead on Reliability, 77 against 70; Agent ergonomics, 71 against 53; Maintenance & community, 50 against 40.

| Category | SavvyCal API + MCP | Truto Unified Calendar API |
| --- | --- | --- |
| Reliability (16%) | 70 | 77 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 74 | 75 |
| Agent ergonomics (13%) | 53 | 71 |
| Security & auth (14%) | 50 | 52 |
| Payments & pricing (10%) | 30 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 40 | 50 |
| Transparency & trust (7%) | 73 | 61 |

| Fact (where they differ) | SavvyCal API + MCP | Truto Unified Calendar API |
| --- | --- | --- |
| Vendor | SavvyCal, Inc. | Yin Yang Inc. |
| Hosted endpoint | `https://api.savvycal.com/v1` | no (local only) |
| Transports | HTTP, Streamable HTTP |  |
| Auth | OAuth or key | API key |
| Pricing | Freemium | Paid |
| Tools exposed | 63 | none |
| Last release | 2026-10-27 | 2026-10-26 |
| Terms last updated | 2026-01-21 | no date given |
| Privacy policy last updated | 2026-10-17 | 2024-10-19 |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |

Why the edge:
- Agent ergonomics, Truto Unified Calendar API +18: SavvyCal API + MCP 53 (List responses are sized by `limit` (default 20, at most 100) with no field selection. The MCP server lists 63 tools with no documented toolset or read-only list, though a client can ask for the `mcp:read` scope alone (10 of 25). Cursor pagination with `after`, `before` and `limit`, and date and status filters on events (17 of 20). Errors name the field, the failed validation and a limit count, which an agent can act on, but a 429 carries no wait time (14 of 20). No idempotency key on booking or link creation, and the MCP annotations could not be read; the docs say the assistant confirms before cancelling, deleting or inviting (6 of 20). Creating an event needs five fields, and there is no official SDK in any language (6 of 15). 10 + 17 + 14 + 6 + 6 = 53.); Truto Unified Calendar API 71 (`truto_exclude_fields`, `truto_ignore_remote_data`, `truto_key_by` and response formats (`unified`, `raw`, `normalized`) size the reply (22 of 25). Query operators such as `[gt]` and `[in]`, `sort_by`, `limit` and cursors, with a meta endpoint that says which filters each vendor supports (18 of 20). Errors name the HTTP status and say whether Truto or the provider failed, with the provider's message extracted (18 of 20). No idempotency key found for creates (5 of 20). Every call needs only the token and `integrated_account_id`; a CLI and the Link SDK exist, with no general API SDK found (8 of 15). 22 + 18 + 18 + 5 + 8 = 71.)
- Transparency & trust, SavvyCal API + MCP +12: SavvyCal API + MCP 73 (Closed service with terms that name SavvyCal, Inc. under Minnesota law and forbid automated access to the site, with the API left to the developer docs (15 of 30). The privacy policy (17 October 2026), DPA (16 January 2023) and processor list (24 October 2026) agree on US hosting, Stripe and return or destruction on termination, but no retention period is stated beyond account lifetime (22 of 30). The developer overview promises additive changes; there is no deprecation policy or dated notice, and the terms allow any feature to change without notice (5 of 20). A processor list with purposes, hosting on Fly.io in Virginia and Crunchy Bridge on AWS us-east, but no locations per processor (15 of 20). 15 + 22 + 5 + 15 = 57.); Truto Unified Calendar API 61 (Closed service under terms naming Yin Yang Inc. (15 of 30). Truto says it stores no customer data and calls vendors live, logs are kept 30 or 90 days by plan, data is kept 15 days after termination, and a DPA is public (25 of 30). Deprecated admin endpoints are marked with no policy or dates (6 of 20). Enterprise customers can choose a data region and tokens can be stored regionally; no subprocessor list was found (8 of 20). 15 + 25 + 6 + 8 = 54.)
- Payments & pricing, SavvyCal API + MCP +10: SavvyCal API + MCP 30 (No x402, MPP or L402 (0). Per-seat plan prices public, nothing per call (10). A Free plan with the API, webhooks and MCP server included and no card mentioned, though booking through a link needs Basic or Premium and there is no self-serve trial (20). A person signs up in a browser and approves the OAuth consent (0). 0 + 10 + 20 + 0 = 30.); Truto Unified Calendar API 20 (No x402, MPP or L402 (0). Plan prices per connector a year are public, with unlimited calls (10). A free 30-day sandbox is given after a work-email request reviewed within a business day (10 of 20). A person requests access or books a demo (0). 0 + 10 + 10 + 0 = 20.)
- Maintenance & community, Truto Unified Calendar API +10: SavvyCal API + MCP 40 (Read as a closed service. The newest dated change is the MCP integration of 27 October 2026 on the updates board (30). It is the only dated entry since 7 July, so fewer than three in 90 days (0 of 20). A public updates board, a feature request board and a support address with a stated 24-hour reply within US Central business hours (10 of 15). No official SDKs (0). No package to assess (0). 30 + 0 + 10 + 0 + 0 = 40.); Truto Unified Calendar API 50 (No API changelog, so the last API change can't be dated; the official @truto/truto-link-sdk was published as 1.3.5 on 26 October 2026, which we take as the latest dated release (20 of 30, since it is the connection widget, not the calendar API). Six Link SDK versions since 8 August (10 of 20, for the same reason). Support through Slack on paid plans, with no public tracker (5 of 15). A CLI and the Link SDK are official, with no API client (10 of 15). Package health not checked (5 of 10). 20 + 10 + 5 + 10 + 5 = 50.)
- Reliability, Truto Unified Calendar API +7: SavvyCal API + MCP 70 (Read with the hosted lines. Instatus page at savvycal.instatus.com with App, Microsoft 365, Google Calendar and Integrations components and a month-by-month history (20). No notices from June to November 2026 and 100 per cent App uptime each month, a clean record (30). The only limit with a number is in the OpenAPI spec, 10 event creations a minute per link, failed ones included; nothing covers the rest of the API (7 of 15). That 429 is declared with no Retry-After, backoff guidance or idempotency key, and webhooks are the only place retries are described (3 of 15). No SLA; the terms give the service as is (0). The v1 API is generally available and the MCP server, announced 27 October 2026, is not marked beta (10). 20 + 30 + 7 + 3 + 0 + 10 = 70.); Truto Unified Calendar API 77 (Graded as a hosted service on the Unified Calendar API. Better Stack status page with components for api.truto.one health, ping and link-token endpoints and the static IP proxy, with incident history (20). The feed lists "APIs and Dashboard are down" on 29 October 2026 and delayed sync jobs and webhooks on 1 November, which counts as one major outage (10). Truto's own limit is 50 requests every 10 seconds per integrated account, in front of each vendor's (15). A vendor 429 comes back with Retry-After and normalised `ratelimit-limit`, `-remaining` and `-reset` headers, with no idempotency guidance for creates (12 of 15). The Enterprise plan lists an SLA guarantee (10). Generally available (10). 20 + 10 + 15 + 12 + 10 + 10 = 77.)