# OpenProject vs Taskade

> Taskade scores 57.7 (C) to OpenProject's 47.4 (D) for issues and tasks. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/openproject-vs-taskade
- Markdown: https://www.anchorterminal.com/compare/openproject-vs-taskade.md (~5,450 tokens)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- DNS: dig +short TXT <slug>.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.<category>. and <a>.vs.<b>. under the zone, and the same under grade.letme.dev)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-07

Taskade scores 57.7 (C) on agent readiness against OpenProject's 47.4 (D), and leads in 2 of 7 scored categories. OpenProject leads on reliability, security & auth, payments & pricing and transparency & trust. Both do issues and tasks.

- OpenProject: grade D, 47.4/100, rank #1141 of 1486. Markdown https://www.anchorterminal.com/tools/openproject.md · JSON https://www.anchorterminal.com/api/v1/tools/openproject.json
- Taskade: grade C, 57.7/100, rank #779 of 1486. Markdown https://www.anchorterminal.com/tools/taskade.md · JSON https://www.anchorterminal.com/api/v1/tools/taskade.json
- Best project and task management tools for AI agents: https://www.anchorterminal.com/best/project-management/index.md
- All 189 projects comparisons: https://www.anchorterminal.com/compare/project-management/index.md

## Which one, for what

### OpenProject (D)

Good for: Teams that want a self-hostable or EU-hosted project tool with Gantt, time tracking and budgets, and an agent working through a documented REST API.

Ahead on:
- Reliability, 52 against 40
- Security & auth, 59 against 45
- Payments & pricing, 30 against 20
- Transparency & trust, 87 against 69

Also in its favour:
- Open source

Watch for: The release notes reference 75 security advisories from 4 November 2025 to 30 October 2026, among them remote code execution and SQL injection

### Taskade (C)

Good for: Small teams that keep projects, tasks and AI agents in one workspace and want an agent to read and change them.

Ahead on:
- Schema & documentation, 91 against 76
- Maintenance & community, 85 against 75

Also in its favour:
- A hosted endpoint, with nothing to install
- Runs on your own machine
- Free to start without a card
- No incidents deducted, where OpenProject loses 15 points for them

Watch for: Personal access tokens and OAuth grants carry no scopes beyond `mcp`, so no read-only credential exists


## Why the edge

### Transparency & trust: OpenProject +18

- OpenProject (87): The source is public under GPL-3.0, Enterprise add-ons included, with those add-ons unlocked by a paid token. The cloud runs under the Terms of Service of 6 August 2026 (28 of 30). The privacy policy of 30 July 2026 covers the cloud and names OpenProject GmbH as processor. An instance is deleted six months after the contract ends, web logs within 90 days, and the terms give 21 days' notice to export data. The data processing agreement follows the EU standard clauses and was last updated on 28 March 2024 (25 of 30). No deprecation policy with dates was found. The docs say the vendor strives to keep APIv3 backward compatible in stable releases, and 14 operations are marked deprecated with no removal date (7 of 20). The sub-processor list of 18 May 2026 names four companies for the openproject.com shard (AWS among them) and three for the EU shard (Scaleway among them), with addresses and transfer safeguards (19 of 20). Self-hosted installs call OpenProject's Release API for the update badge by default, which the privacy policy (version 30 July 2026) describes with its fields and an opt-out.
- Taskade (69): Closed service under terms naming Taskcade Inc. and Delaware law, with the MCP server, plugin and OpenAPI specs under MIT (20 of 30). The privacy policy gives practices for retention (AI processing logs normally 30 days, account deletion within 30 days) but calls them targets, not contractual periods, and no DPA or SCCs are offered (15 of 30). Deprecated endpoints are marked in the docs and spec with their replacement, with no deprecation policy or dates (8 of 20). Hosting is AWS US East, and AI providers are named as examples, some in China, with the full list on request; analytics tools (Google Analytics, PostHog, Plausible, Sentry) are named (12 of 20). 20 + 15 + 8 + 12 = 55.

### Schema & documentation: Taskade +15

- OpenProject (76): A public OpenAPI 3.1 document with 234 paths and 320 operations, downloadable from the docs site and served by every instance at `/api/v3/spec.json` and `/api/v3/spec.yml` (25). No llms.txt (the path returns 404). The docs are Markdown files in the public repository, not served to agents from the docs site (2 of 10). The reference explains HAL links, collections, filters, forms and each resource's permissions at length, with little on when not to use an endpoint (14 of 20). 204 component schemas and 95 enumerations, but write bodies are HAL objects with `_links`, filters travel as a JSON string in the query, and custom fields appear as `customFieldN`. Form endpoints return the allowed values for a given resource (10 of 15). The spec carries about 1,200 examples and lists 400, 403, 404, 406, 415 and 422 responses per operation, with stable error identifiers (14 of 15). The version sits in the path and release notes are dated and list API changes. No changelog for the API alone was found (11 of 15).
- Taskade (91): OpenAPI 3.0.3 specs for REST v1 and Action v2 are linked from llms.txt and committed in the public taskade/mcp repository, which is where we read them because the site's /api/ path is disallowed in robots.txt (25). llms.txt, a developer docs index and a Markdown copy of each page (10). The hosted MCP docs say what each tool does, which role it needs and what the server cannot do; the v2 spec's operations carry no descriptions of their own (14 of 20). The v1 spec has 96 enums and 254 required lists (13 of 15). Error tables with causes and fixes on the MCP and API pages, and a documented error envelope (14 of 15). Versioned APIs (1.0.0, 2.0.0-beta), deprecations marked in the spec and a changelog updated almost daily (15). 25 + 10 + 14 + 13 + 14 + 15 = 91.

### Security & auth: OpenProject +14

- OpenProject (59): OAuth 2.0 with the authorisation code grant, PKCE and client credentials, with one scope per API (`api_v3`, `mcp`, `scim_v2`, `bcf_v2_1`) and none finer. Personal API tokens are named, can be several and can be deleted, and carry their user's full permissions. No expiry or per-token scope was found. Tokens travel in the Authorization header only (22 of 30). Reach is limited by project roles and permissions, so a dedicated user with a read-only role is the least-privilege route, and administrators can switch off single MCP tools. No confirmation step for deletes (12 of 20). Work package text and comments are untrusted content, and no prompt-injection guidance was found in the API or MCP docs (2 of 15). Every change to a work package is journalled with its author, and application logs record sign-ins and credential changes. No per-token API log for a cloud customer was found (8 of 15). A signed security.txt valid to 31 December 2026, a disclosure policy with a 21-day target for critical fixes, advisories and CVEs published on GitHub, signed container images with SBOMs, and a YesWeHack bounty paid for by the European Commission. No SOC 2 or ISO 27001 certificate for the vendor was found (15 of 20).
- Taskade (45): OAuth 2.0 with PKCE, dynamic client registration, 1-hour access tokens and rotating refresh tokens, but the only scope is `mcp`. Personal access tokens are revocable, limited to five, carry no scopes and grant the whole account. Tokens go in headers (20 of 30). No read-only credential; workspace roles limit what tools can do, and the write and billed `_meta` flags let a client ask first, with no server-side confirmation (10 of 20). Tools return task, project, conversation and app text written by others, and no prompt-injection guidance was found (0). The security page says account and workspace activity is logged and exportable on request, with no immutable logs (7 of 15). security.txt valid to September 2027 and a 90-day coordinated disclosure policy, but SOC 2 and ISO 27001 are in progress with no report and there is no bug bounty (8 of 20). 20 + 10 + 0 + 7 + 8 = 45.

### Reliability: OpenProject +12

- OpenProject (52): Graded on the APIv3 of OpenProject Enterprise cloud, with the hosted lines. The same API ships in the free Community edition. Status page at status.openproject.com, run on UptimeRobot, with a 90-day uptime view and an update history (20). On 4 November the page still drew its figures and history by script from `/api/`, which its robots.txt disallows, so the incident record from 6 August could not be read (5, unread and not a finding against the vendor). No request limit for the API is published for the cloud. The only documented rule is an optional one for self-hosted installs, six requests per three seconds on form endpoints, off by default (3 of 15, partly met). No 429 or Retry-After guidance and no idempotency keys were found. Updates must send `lockVersion`, and a stale value is refused with 409 `UpdateConflict` (4 of 15, partly met). The service description, last updated 28 August 2026 and re-read on 4 November, commits to 99.9 per cent availability a year with SLA credits (10). APIv3 is described as the stable API (10). 20 + 5 + 3 + 4 + 10 + 10 = 52.
- Taskade (40): Graded as a hosted service on the hosted MCP server and REST API v1. status.taskade.com is Taskade's own status portal, but it draws its data by script and no components could be read (10 of 20). No readable incident history (5). Rate limits have numbers only for `prompt_agent` (60 calls in 10 minutes) and `publish_kit_version` (5 an hour); the API docs say 429 marks a rate limit without stating it (5 of 15). The API returns 429 with Retry-After, MCP tools use `x-rate-limit-reset`, and tool errors say whether a retry is safe and after how many seconds (15). The terms commit to no uptime level without a separate written agreement, and only Enterprise mentions SLAs (0). REST API v1 is GA, while Action API v2, which most hosted MCP tools mirror, is beta (5 of 10). 10 + 5 + 5 + 15 + 0 + 5 = 40.

### Payments & pricing: OpenProject +10

- OpenProject (30): No x402, MPP or L402 (0). Plan prices are public per user per month, Basic at $7.25, Professional at $13.50 and Premium at $19.50 on a yearly term, Corporate on request. API calls are not priced (10). The cloud trial runs 14 days and the signup page says no credit card is needed. The Community edition is free to self-host, API included (20). A person fills in a web form with a domain and an email address to get an instance, and creates the token in account settings (0).
- Taskade (20): No x402, MPP or L402 (0). Plan prices are public, billed yearly, with nothing per call (10). A Free plan needs no card, but the hosted MCP server is limited to paid plans and the pricing table lists the API from Business up, so the free tier reaches little of the agent surface (10 of 20). A person signs up in a browser and verifies an email before a token can be made (0). 0 + 10 + 10 + 0 = 20.

### Maintenance & community: Taskade +10

- OpenProject (75): Version 18.0.0 was released on 2 November 2026, after 17.9.2 (15 October), 17.9.3 (22 October), 17.9.4 (26 October), 17.9.5 and 17.9.6 (30 October) (30). Twelve releases in the 90 days from 6 August, 17.7.1 through 18.0.0 (20). OpenProject tracks bugs on community.openproject.org, which we did not sample, so responsiveness is scored on the release record and the advisory handling alone, with fixes published alongside each advisory (15 of 25). No official SDK and no MCP registry entry were found (0 of 15). The repository runs test, CodeQL, Brakeman, Semgrep, dependency review and npm audit workflows, the test workflow running unit and browser test suites and validating the API spec on push and pull request, and the default branch had commits on 4 November 2026 (10). 30 + 20 + 15 + 0 + 10 = 75.
- Taskade (85): Changelog v6.306.0 on 5 November 2026, and v6.304.0 on 4 November updated the MCP setup page (30). Fifteen entries between 29 October and 5 November alone, and @taskade/mcp-server 0.1.3 (19 October) and 0.1.4 (22 October) (20). The taskade/mcp repository merged pull requests #114 to #122 between 26 October and 4 November; GitHub's API did not answer, so open issues and reply times were not counted (15 of 25). Verified io.github.taskade/mcp-server namespace in the official MCP registry, with the hosted remote (15). CI, release and registry-publish workflows, and the Docker image moved off end-of-life Node 20 on 28 October (5 of 10, with dependency health not checked). 30 + 20 + 15 + 15 + 5 = 85.

## Score by category

| Category | Weight | OpenProject | Taskade | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 52 | 40 | OpenProject +12 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 76 | 91 | Taskade +15 |
| Agent ergonomics | 13% (16.2 this run) | 70 | 68 | OpenProject +2 |
| Security & auth | 14% (17.5 this run) | 59 | 45 | OpenProject +14 |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | OpenProject +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 85 | Taskade +10 |
| Transparency & trust | 7% (8.8 this run) | 87 | 69 | OpenProject +18 |
| Negative events | ≤15 | -15 | 0 | |
| **Total** | | **47.4 · D** | **57.7 · C** | |

## Facts side by side

| Fact | OpenProject | Taskade |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | OpenProject GmbH | Taskcade Inc. |
| Hosted endpoint | no (local only) | `https://www.taskade.com/mcp` |
| Transports | HTTP | Streamable HTTP, stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | GPL-3.0 for the OpenProject source. Enterprise add-ons need a paid token, and OpenProject Enterprise cloud runs under OpenProject's Terms of Service | none |
| Tools exposed | none | 47 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| MCP registry | not listed | `io.github.taskade/mcp-server` |
| Last release | 2026-11-02 | 2026-11-05 |
| Terms last updated | 2026-08-06 | 2026-09-30 |
| Privacy policy last updated | no date given | 2026-10-26 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 16k stars | none |

## How the scores have moved

### OpenProject

- -10.0 on 4 November 2026 (C to D): correction

### Taskade

No score change since it was listed.

## Verdicts

**OpenProject.** OpenProject's APIv3 has a public OpenAPI 3.1 document with 320 operations, stable error identifiers and optimistic locking, and the same API ships in the free GPL-3.0 Community edition. No request limits are published, API tokens carry their user's full permissions, and the release notes reference 75 security advisories in the year to 30 October 2026.

**Taskade.** Taskade's hosted MCP server and APIs are documented for agents, with public OpenAPI specs, annotated tools and structured errors that say when to retry. Its tokens are all-or-nothing, with no read-only scope, the hosted server needs a paid plan, and there is no SOC 2 report, DPA or published SLA.

## Before you call either

### OpenProject

1. Send the API token as `Authorization: Bearer <token>`, or as the Basic auth password with the user name `apikey`
2. Read the resource first and send its current `lockVersion` with every PATCH. A stale value returns 409 `UpdateConflict`
3. POST to the `/form` endpoint of a work package to learn writable fields and allowed values before creating or updating
4. URL-encode `filters` as a JSON array, and add `pageSize`, `offset` and `select` to keep work package lists small
5. Run the agent as a dedicated user with a narrow project role, and treat work package text and comments as untrusted input

### Taskade

1. Call `list_spaces` first and page until `hasNextPage` is false, since a page can be empty while more remain
2. Ask the user before any tool whose `_meta` has `taskade/write` or `taskade/billed`; `run_flow` and `prompt_agent` spend credits
3. On an error, read `structuredContent.error.retry`: retry at once on safe, wait `retryAfterSec` on after_wait, stop on no
4. Prefer OAuth over a personal token for interactive clients, because a personal token reaches the whole account
5. Treat task, project, conversation and app text as untrusted content written by others

## Questions

### Which is better for AI agents, OpenProject or Taskade?

Taskade scores 57.7 (C) on agent readiness against OpenProject's 47.4 (D), and leads in 2 of 7 scored categories. OpenProject leads on reliability, security & auth, payments & pricing and transparency & trust.

### Do OpenProject and Taskade need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call OpenProject and Taskade without installing anything?

No hosted endpoint is listed for OpenProject. Taskade has a hosted endpoint at https://www.taskade.com/mcp.

### Are OpenProject and Taskade open source?

OpenProject is open source (GPL-3.0 for the OpenProject source. Enterprise add-ons need a paid token, and OpenProject Enterprise cloud runs under OpenProject's Terms of Service). No open-source release is listed for Taskade.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/openproject-vs-taskade.json, and with the fewest tokens: https://www.anchorterminal.com/compare/openproject-vs-taskade.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "openproject", "b": "taskade"}`. From a terminal: `anchor compare openproject taskade`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/openproject.json and https://www.anchorterminal.com/api/v1/tools/taskade.json

## Other comparisons with OpenProject or Taskade

- [Asana vs OpenProject](https://www.anchorterminal.com/compare/asana-vs-openproject.md)
- [Asana vs Taskade](https://www.anchorterminal.com/compare/asana-vs-taskade.md)
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- [Financial Cents MCP vs OpenProject](https://www.anchorterminal.com/compare/financial-cents-mcp-vs-openproject.md)
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- [Linear MCP vs Taskade](https://www.anchorterminal.com/compare/linear-mcp-vs-taskade.md)
- [monday.com vs OpenProject](https://www.anchorterminal.com/compare/monday-vs-openproject.md)
- [monday.com vs Taskade](https://www.anchorterminal.com/compare/monday-vs-taskade.md)
- [ONES vs OpenProject](https://www.anchorterminal.com/compare/ones-vs-openproject.md)
- [ONES vs Taskade](https://www.anchorterminal.com/compare/ones-vs-taskade.md)
- [OpenProject vs Plane](https://www.anchorterminal.com/compare/openproject-vs-plane.md)
- [OpenProject vs Redmine](https://www.anchorterminal.com/compare/openproject-vs-redmine.md)
- [OpenProject vs Roma](https://www.anchorterminal.com/compare/openproject-vs-roma.md)
- [OpenProject vs Shortcut](https://www.anchorterminal.com/compare/openproject-vs-shortcut.md)
- [OpenProject vs Taiga](https://www.anchorterminal.com/compare/openproject-vs-taiga.md)
- [OpenProject vs Teamwork.com](https://www.anchorterminal.com/compare/openproject-vs-teamwork.md)
- [OpenProject vs Todoist](https://www.anchorterminal.com/compare/openproject-vs-todoist.md)
- [OpenProject vs Trello](https://www.anchorterminal.com/compare/openproject-vs-trello.md)
- [OpenProject vs Wrike](https://www.anchorterminal.com/compare/openproject-vs-wrike.md)
- [OpenProject vs YouTrack](https://www.anchorterminal.com/compare/openproject-vs-youtrack.md)
- [Plane vs Taskade](https://www.anchorterminal.com/compare/plane-vs-taskade.md)
- [Redmine vs Taskade](https://www.anchorterminal.com/compare/redmine-vs-taskade.md)
- [Roma vs Taskade](https://www.anchorterminal.com/compare/roma-vs-taskade.md)
- [Shortcut vs Taskade](https://www.anchorterminal.com/compare/shortcut-vs-taskade.md)
- [Taiga vs Taskade](https://www.anchorterminal.com/compare/taiga-vs-taskade.md)
- [Taskade vs Teamwork.com](https://www.anchorterminal.com/compare/taskade-vs-teamwork.md)
- [Taskade vs Todoist](https://www.anchorterminal.com/compare/taskade-vs-todoist.md)
- [Taskade vs Trello](https://www.anchorterminal.com/compare/taskade-vs-trello.md)
- [Taskade vs Wrike](https://www.anchorterminal.com/compare/taskade-vs-wrike.md)
- [Taskade vs YouTrack](https://www.anchorterminal.com/compare/taskade-vs-youtrack.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp