loadbay
Server Details
Catalog of 370+ open-source AI-agent harnesses. Search, list your own, earn USDC tips via x402.
- Status
- Healthy
- Uptime
- 100.0% over 54 days
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
TDQS
Scored across 6 tools
Most tools have clear, distinct purposes: get_harness retrieves one item, search_harnesses queries with filters, list_domains shows categories, submit_harness creates a listing. The main ambiguity is between tip_harness and support_loadbay, as both are payment actions differing only in recipient, but the descriptions clarify the distinction.
All tool names follow a consistent verb_noun pattern in snake_case: get_harness, list_domains, search_harnesses, submit_harness, tip_harness, support_loadbay. While support_loadbay uses a brand name as the object, it still fits the established naming scheme.
Six tools is well-scoped for a niche catalog-plus-tipping server. Each tool covers a distinct operation without unnecessary bloat, and the count feels intentional rather than sparse or heavy.
The core workflows are covered: discovering harnesses (search, list domains, get), listing a harness (submit), and tipping (tip_harness, support_loadbay). Minor gaps exist — notably no update/delete for harnesses and no tip history — but these are not critical to the main purpose.
Available Tools
6 toolsget_harnessGet harness detailsRead-onlyIdempotentInspect
Get full details for one harness in the Loadbay catalog by slug (from search_harnesses): repo, license, stars, language, integrations, traits, summary and a shareable loadbay.xyz page. If the slug is unknown it returns the closest matches.
| Name | Required | Description | Default |
|---|---|---|---|
| slug | Yes | the harness slug, e.g. browser-use |
list_domainsList harness domainsRead-onlyIdempotentInspect
List the domains (categories) in the Loadbay catalog with how many harnesses each holds. Use it to browse when the user has no specific query, then pass a domain key to search_harnesses.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
search_harnessesFind agent harnesses / MCP serversRead-onlyIdempotentInspect
Find an existing MCP server, SDK or agent framework that connects an AI agent to a service or does a task, from Loadbay's curated catalog. Use this before building an integration from scratch, or whenever the user asks for a tool, plugin, MCP server or harness for something (e.g. "MCP server for Postgres", "browser automation for agents", "crypto trading bot framework", "Slack integration"). Returns matches ranked by relevance then GitHub stars, each with repo URL, license, language, integrations and traits. All filters are optional; with none it returns the most-starred harnesses.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | max results, default 10 | |
| query | No | what the agent needs to do or connect to, in plain words, e.g. "postgres", "stripe payments", "web scraping" | |
| trait | No | require a trait: mcp = exposes an MCP server, oss = open source, keys = needs API keys, sandbox = runs sandboxed, guard = has guardrails | |
| domain | No | restrict to one domain: trading (Trading), coding (Coding & DevOps), browser (Browser & computer), productivity (Productivity), data (Data & search), social (Social & comms), health (Health), science (Research & science), gaming (Gaming), media (Voice & media), robotics (Robotics) | |
| integration | No | require a named integration, e.g. "GitHub", "Coinbase", "Slack" (case-insensitive) |
submit_harnessSubmit a harness to LoadbayInspect
List a new harness on Loadbay. The repo MUST be a public, open-source GitHub repository. Optionally include a USDC address to receive tips — it must also appear in the repo's loadbay.json, .github/FUNDING.yml or README.md (proof of ownership). The listing appears immediately, tagged as community-added (unverified).
| Name | Required | Description | Default |
|---|---|---|---|
| name | Yes | harness name, e.g. my-coinbase-harness | |
| repo | Yes | public GitHub repo URL — must be open source (have a license) | |
| author | No | your GitHub handle (defaults to the repo owner) | |
| domain | Yes | domain key, one of: trading | coding | browser | productivity | data | social | health | science | gaming | media | robotics | |
| traits | No | capability traits | |
| summary | Yes | what it connects to, what tools it exposes, how an agent uses it | |
| language | No | primary language, e.g. TypeScript | |
| integrations | No | what it connects to, e.g. ["Coinbase","Slack"] | |
| solanaAddress | No | Solana wallet (base58) to receive USDC (SPL) tips — optional, alongside or instead of Base | |
| baseUsdcAddress | No | Base USDC wallet (0x…) to receive tips — must also appear in the repo's loadbay.json, .github/FUNDING.yml or README.md |
support_loadbaySupport Loadbay (x402)Read-onlyIdempotentInspect
Only when the user asks to support or donate to Loadbay. Support the Loadbay builder with a USDC tip over x402. Returns the payable endpoint — GET it with your own x402 wallet to send the tip. Loadbay never holds funds; your wallet is the payer.
| Name | Required | Description | Default |
|---|---|---|---|
| amount | No | tip amount in USD (default 5); the builder receives USDC |
tip_harnessTip a harness author (x402)Read-onlyIdempotentInspect
Only when the user asks to tip or pay a harness author. Tip in USDC over x402. Returns the payable endpoint and its payment details — GET it with an x402-capable client/wallet to actually send the tip (the agent's own wallet pays; Loadbay never holds funds).
| Name | Required | Description | Default |
|---|---|---|---|
| slug | Yes | the harness slug to tip | |
| amount | No | tip amount in USD (default 1); the author receives USDC |
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
1 tool update
- Changed
search_harnesses9 fields changed- changed
Input schema / properties / domain / descriptionPrevious value: -"domain key: trading | coding | browser | productivity | data | social | health | science | gaming | media | robotics"New value: +"restrict to one domain: trading (Trading), coding (Coding & DevOps), browser (Browser & computer), productivity (Productivity), data (Data & search), social (Social & comms), health (Health), science (Research & science), gaming (Gaming), media (Voice & media), robotics (Robotics)" - added
Input schema / properties / domain / enumAdded value: +[ + "trading", + "coding", + "browser", + "productivity", + "data", + "social", + "health", + "science", + "gaming", + "media", + "robotics" +] - added
Input schema / properties / integrationAdded value: +{ + "description": "require a named integration, e.g. \"GitHub\", \"Coinbase\", \"Slack\" (case-insensitive)", + "type": "string" +} - changed
Input schema / properties / limit / descriptionPrevious value: -"max results, default 20"New value: +"max results, default 10" - added
Input schema / properties / limit / maximumAdded value: +50 - added
Input schema / properties / limit / minimumAdded value: +1 - changed
Input schema / properties / limit / typePrevious value: -"number"New value: +"integer" - changed
Input schema / properties / query / descriptionPrevious value: -"free-text over name, author, summary, integrations"New value: +"what the agent needs to do or connect to, in plain words, e.g. \"postgres\", \"stripe payments\", \"web scraping\"" - changed
Input schema / properties / trait / descriptionPrevious value: -"require a capability trait"New value: +"require a trait: mcp = exposes an MCP server, oss = open source, keys = needs API keys, sandbox = runs sandboxed, guard = has guardrails"
1 tool update
- Changed
submit_harness1 field changed- changed
Input schema / properties / baseUsdcAddress / descriptionPrevious value: -"Base USDC wallet (0x…) to receive tips — only if you want to get paid"New value: +"Base USDC wallet (0x…) to receive tips — must also appear in the repo's loadbay.json, .github/FUNDING.yml or README.md"
6 tool updates
- First observed
get_harness - First observed
list_domains - First observed
search_harnesses - First observed
submit_harness - First observed
support_loadbay - First observed
tip_harness
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