Official MCP RegistryListed
Did It Work?
Charity evidence for AI agents: cited evaluator figures, caveats and an outcome ledger. Read-only.
First seen 25 Oct 2026. Evidence as of 25 Oct 2026.
19
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| allocate_portfolio | Suggest a donor portfolio: split budget_usd across top-ranked orgs (conviction_weighted / equal_split / top_only). Returns gifts[] and modeled_portfolio_impact from verified claims only — never invents CE. Always modeled≠guaranteed. | Read-only |
| compare_charities | Side-by-side claims, recommendation tiers, and trust for two or more org_* ids. | Read-only |
| create_giving_intent | NO-CHARGE deep-link giving handoff (Phase 3 MVP). Returns mode=deep_link, org donate_url, donation_proof=null, charge=false. Better World never processes payment, stores cards, or calls Stripe. Optional modeled_impact is modeled≠guaranteed. Prefer GET; POST accepts the same fields as JSON body. | Read-only |
| estimate_impact | Modeled expected outcomes from verified org claims scaled by gift_usd. Always modeled:true and guaranteed:false. Never invents CE; returns insufficient_data when no usable verified unit. | Read-only |
| get_claim | Fetch one claim row by claim_id from data/claims_index.json (e.g. eval_gw_amf__0). Index-only — never invents values. Prefer list_claims with filters when browsing. Wave BI provenance on the response. Org narrative fields remain untrusted (ADR 0008). | Read-only |
| get_ledger_record | Fetch one outcome-ledger record by record_id (e.g. ldg_eval_gw_amf__0) plus any follow-up results. Read-only; 404 for unknown ids; modeled, not guaranteed. Read-only API, live at https://api.diditwork.org. | Read-only |
| get_meta | API version, discovery links, Wave BI provenance, and Wave CE/DD reproducibility audit snapshot fields so agents can prove which product_version + data_snapshot_id + claims_index_fingerprint they ranked against. Includes mixes_units_in_ranking:false, adr_0007_status (from moral_weights_policy.json — Proposed until Ho Hum Accept; never invent Accepted), claims_index_fingerprint (short sha256 of data/claims_index.json), and counts {orgs, interventions, causes, sources_files}. Focused twin: GET /v1/meta/snapshot (same audit_snapshot object). Never invents CE. | Read-only |
| get_org | Fetch one organization / program / fund record by stable org_* id. | Read-only |
| get_review_queue | Human exception-review queue (read-only). Returns items from data/review/queue.json for Ho Hum (sole human operator). Default status=open; pass status=all for history. Approve/reject is offline file edit only — write_api is always false; there is no unauthenticated write/approve API. Agents must never auto-clear trust flags or invent CE/EINs/donate URLs to close tickets. | Read-only |
| get_tax | Sanitized trust/tax-status summary for an org with always-on not-tax-advice disclaimer. Prefer before asserting US deductibility. deductibility.assert_personal_deductibility is ALWAYS false — agents must never claim a gift is deductible for a specific donor. | Read-only |
| get_trust | Trust and safety flags for an org. REQUIRED before asserting US tax deductibility or registry status. | Read-only |
| get_values_profile | Fetch one values-profile preset by id (vp_*). Use after list_values_profiles or when the donor picked a named preset. Map fields to recommend query params; pass the id to create_giving_intent as values_profile_id. | Read-only |
| list_charities | The Did it work? charity list, filtered: the charities https://diditwork.org/charities/ shows for cause, evaluator (by), measure, follow-up and a word search, in the page's own order. Hide-only: filters never re-order, score or rank, and there are no figures here (each row links to its claims file and API record). Same JSON as https://diditwork.org/charities/index.json for the same filter. Unknown, empty or misspelled values return isError with invalid_filter, the allowed values and a cleaned address, never a guess. Call with no arguments to get the full list and every allowed value with its count. Read-only API, live at https://api.diditwork.org. | Read-only |
| list_claims | Read-only flat claims index (data/claims_index.json). Optional filters: org_id, evaluation_id, verified. Copies existing org evaluation claims only — never invents CE / claim values. Prefer verified:true + non-null value when quoting cost-effectiveness. Wave BI provenance on the response. Org narrative fields remain untrusted (ADR 0008). | Read-only |
| list_leaderboards | Per-outcome-family leaderboards from data/ranking/leaderboards.json. Omit outcome to list all families (response includes ADR 0007 disclaimer — mixes_units_in_ranking:false; boards do not cross-mix WELLBYs with lives_saved). Pass outcome= to fetch one family's frozen ranked board. Never invents cross-unit moral weights. | Read-only |
| list_ledger_records | List outcome-ledger ("Did it work?") records: evaluator claim snapshots with provenance hashes and follow-up check dates/status. Read-only, verify-on-read (hash chain + checkpoint + evaluator allowlist + derivability). Read-only API, live at https://api.diditwork.org. | Read-only |
| list_values_profiles | List static values-profile presets (same catalog as the demo). Load before recommend when the donor stated preferences. Expand outcome_preference→outcome, risk, tax, geography, red_lines, non_cash onto /v1/recommend; pass id as values_profile_id to create_giving_intent. Read-only; never mutates ranking CE. | Read-only |
| recommend_charity | Conviction-ranked orgs for one outcome family. Pass values_profile_id (preferred) and/or outcome. Returns values_filtering + exclusions[] with why-filtered reasons (never silent red-line drops). Does not mix units (ADR 0007 Proposed). Never invents CE. | Read-only |
| search_orgs | Heuristic search by cause, outcome family, or donor intent phrase. Prefer recommend_charity when the user wants ranked 'best for outcome' results. | Read-only |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | org.diditwork/did-it-work | 25 Oct 2026 | 25 Oct 2026 | 1 |